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100+ Interview Questions and Answers

Updated 12 Dec 2024
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Q1. If you don't have any safety equipment and documents how to complete the work ?

Ans.

I would immediately stop the work and assess the situation to determine the necessary safety equipment and documents.

  • Stop the work immediately to prevent any potential hazards or accidents.

  • Assess the situation to determine the necessary safety equipment and documents.

  • Obtain the required safety equipment and documents before resuming work.

  • Communicate the importance of safety equipment and documents to all team members to prevent future incidents.

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Q2. What you check before starting the work at height activity?

Ans.

Before starting work at height, I check...

  • The condition of the equipment to be used

  • The stability of the work surface

  • The weather conditions

  • The availability and proper use of personal protective equipment

  • The presence of a rescue plan

  • The competency of the workers involved

  • The communication system in place

  • The adherence to safety regulations and procedures

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Q3. What is safety equipment you are carry on the duty.

Ans.

As a Safety Officer, I carry a range of safety equipment including a first aid kit, fire extinguisher, safety vest, and hard hat.

  • First aid kit for emergency medical situations

  • Fire extinguisher for fire emergencies

  • Safety vest for visibility and identification

  • Hard hat for head protection

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Q4. What is working at height safety as per standard?

Ans.

Working at height safety involves measures to prevent falls and injuries when working at elevated levels.

  • Employers must conduct risk assessments and provide appropriate safety equipment and training.

  • Workers must use the provided safety equipment and follow safe work procedures.

  • Examples of safety equipment include harnesses, guardrails, and safety nets.

  • The standard also includes requirements for inspection and maintenance of equipment and work areas.

  • Compliance with the standar...read more

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Q5. How many percentage setting line safety valve.

Ans.

The percentage setting of a line safety valve depends on the specific system and its requirements.

  • The percentage setting is determined by the pressure drop across the valve and the required flow rate.

  • Typically, line safety valves are set between 10-20% above the system's operating pressure.

  • However, this can vary depending on the specific system and its requirements.

  • It is important to ensure that the valve is set correctly to prevent overpressure and potential safety hazards.

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Q6. What is the hazard in oil and gas field ?

Ans.

The hazards in oil and gas field include fire, explosion, toxic gas exposure, falls, and equipment failure.

  • Fire and explosion risks due to the presence of flammable materials

  • Toxic gas exposure from leaks or releases

  • Falls from heights during drilling or maintenance activities

  • Equipment failure due to high pressure or temperature

  • Environmental hazards such as oil spills or gas leaks

  • Human error or negligence leading to accidents

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Q7. How to conduct a JSA and Risk assessment?

Ans.

JSA and risk assessment involve identifying hazards, evaluating risks, and implementing controls.

  • Identify the job or task to be analyzed

  • Break down the job into steps

  • Identify potential hazards for each step

  • Evaluate the risks associated with each hazard

  • Implement controls to eliminate or reduce the risks

  • Review and update the JSA and risk assessment regularly

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Q8. What is the requirement of besic PPE's in plant ?

Ans.

Basic PPEs are essential for plant safety. They include hard hats, safety glasses, earplugs, gloves, and safety shoes.

  • Hard hats protect the head from falling objects and impacts.

  • Safety glasses protect the eyes from flying debris and harmful substances.

  • Earplugs protect the ears from loud noises and prevent hearing loss.

  • Gloves protect the hands from cuts, burns, and chemical exposure.

  • Safety shoes protect the feet from falling objects and electrical hazards.

  • Other PPEs may be req...read more

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Q9. What is draft in boiler

Ans.

Draft in a boiler refers to the flow of air or gases through the combustion chamber and flue gas passages.

  • Draft is created by a difference in pressure between the inside and outside of the boiler.

  • It is necessary for proper combustion and efficient operation of the boiler.

  • There are two types of draft: natural draft and forced draft.

  • Natural draft is created by the buoyancy of hot gases, while forced draft is created by mechanical means such as fans or blowers.

  • Draft can be measu...read more

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Q10. Which type of Oil used in turbine?

Ans.

The type of oil used in turbines is typically turbine oil.

  • Turbine oil is specifically designed to meet the lubrication requirements of turbines.

  • It has excellent thermal stability and oxidation resistance.

  • Turbine oil helps reduce friction and wear in the turbine's moving parts.

  • It also provides cooling and helps remove contaminants from the system.

  • Different types of turbine oils are available, such as mineral-based, synthetic, and bio-based oils.

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Q11. Explain basis safety equipment and working procedure ?

Ans.

Safety equipment and working procedures are essential for preventing accidents and injuries in the workplace.

  • Safety equipment includes personal protective equipment (PPE) such as hard hats, safety glasses, gloves, and safety shoes.

  • Working procedures involve following established protocols for tasks such as lockout/tagout, confined space entry, and working at heights.

  • Regular safety training and communication are also important for ensuring that employees understand and follow ...read more

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Q12. how to sense flow transmitter to transmit signal to controller in selected range?

Ans.

Flow transmitter senses flow and transmits signal to controller in selected range.

  • Use a flow transmitter that is capable of sensing flow and transmitting a signal.

  • Connect the flow transmitter to the controller using appropriate wiring and communication protocols.

  • Configure the flow transmitter to operate within the desired range.

  • Ensure proper calibration of the flow transmitter to accurately measure and transmit flow data.

  • Implement suitable signal conditioning techniques to en...read more

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Q13. What is the definition of Property, Plant, and Equipment (PPE), how is the cost capitalized, and what does site restoration treatment entail?

Ans.

PPE refers to tangible assets used in production, cost is capitalized by including purchase price, installation costs, and necessary modifications, site restoration treatment involves returning a property to its original state.

  • Property, Plant, and Equipment (PPE) are tangible assets used in production, such as buildings, machinery, and vehicles.

  • The cost of PPE is capitalized by including the purchase price, installation costs, and any necessary modifications to make the asset...read more

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Q14. What are provisions, contingent liabilities, and contingent assets, and can you provide examples of each?

Ans.

Provisions, contingent liabilities, and contingent assets are financial terms related to potential future events.

  • Provisions are liabilities of uncertain timing or amount, such as warranty provisions or restructuring provisions.

  • Contingent liabilities are potential liabilities that may arise depending on the outcome of a future event, such as pending lawsuits or guarantees on loans.

  • Contingent assets are potential assets that may arise depending on the outcome of a future event,...read more

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Q15. What is the importance of Hand over & Take over process

Ans.

Hand over & Take over process is important for ensuring smooth transition of responsibilities and operations in power plants.

  • Ensures continuity of operations by transferring critical information and responsibilities from one shift to another

  • Helps in identifying any ongoing issues or concerns that need immediate attention

  • Reduces the risk of errors or accidents due to miscommunication or lack of information

  • Allows for proper documentation of activities and events for future refe...read more

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Q16. WHICH MATERIAL IS USED FOR MAKING CYLINDER BLOCK AND PISTON?

Ans.

Cylinder blocks are made of cast iron or aluminum alloy, while pistons are made of aluminum alloy.

  • Cylinder blocks can also be made of steel or magnesium alloy.

  • Aluminum alloy is preferred for pistons due to its lightweight and good thermal conductivity.

  • Cast iron is preferred for cylinder blocks in diesel engines due to its strength and durability.

  • Steel is preferred for high-performance engines due to its strength and heat resistance.

  • Magnesium alloy is used in some racing engin...read more

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Q17. What is the importance of Boiler Chemical Preservation

Ans.

Boiler chemical preservation is important to prevent corrosion and maintain efficiency in power plants.

  • Prevents corrosion in boiler components such as tubes and drums

  • Maintains heat transfer efficiency by preventing scale buildup

  • Extends the lifespan of the boiler system

  • Ensures safe and reliable operation of the power plant

  • Examples: using oxygen scavengers to prevent oxygen corrosion, using pH control agents to maintain proper water chemistry

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Q18. Preparation of Hazard Identification & Assessment of Risk & Opportunity

Ans.

The preparation of hazard identification and assessment of risk and opportunity is a crucial task for a Safety Officer.

  • Start by conducting a thorough hazard identification process to identify potential risks and hazards in the workplace.

  • Assess the identified hazards by evaluating the likelihood and severity of each risk.

  • Use various risk assessment techniques such as risk matrices, fault tree analysis, or bowtie analysis.

  • Consider both internal and external factors that may con...read more

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Q19. What are the differences between deferred revenue, unearned revenue, and unbilled revenue?

Ans.

Deferred revenue is revenue received in advance but not yet earned, unearned revenue is revenue received in advance and earned but not yet recognized, and unbilled revenue is revenue recognized but not yet billed.

  • Deferred revenue is revenue received in advance but not yet earned, so it is recorded as a liability until it is earned.

  • Unearned revenue is revenue received in advance and earned but not yet recognized, so it is recorded as a liability until it is recognized as reven...read more

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Q20. Safety settings and which safety valve pop-up first and why?

Ans.

Safety valves are designed to prevent overpressure in a system by releasing excess pressure. The valve that pops up first is typically the one set to the lowest pressure threshold.

  • Safety valves are set at different pressure thresholds to ensure that the system does not exceed its maximum pressure capacity.

  • The safety valve that pops up first is usually the one set to the lowest pressure threshold, as it will activate before the others in case of overpressure.

  • This sequential ac...read more

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Q21. What do you know about fabrication?

Ans.

Fabrication involves the creation or construction of something, often using various materials and techniques.

  • Fabrication is the process of making or manufacturing something.

  • It involves using materials and techniques to create a finished product.

  • Examples of fabrication include welding, machining, and 3D printing.

  • Fabrication can be used in various industries such as automotive, aerospace, and construction.

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Q22. Which type of turbine in past company?

Ans.

The type of turbine used in my past company was a gas turbine.

  • Gas turbine was used in my past company.

  • Gas turbines are commonly used in power generation and industrial applications.

  • Gas turbines operate by burning fuel to generate high-pressure gas, which then drives a turbine to produce electricity or mechanical power.

View 1 answer

Q23. How many types of tube mstterls.

Ans.

There are several types of tube materials used in various industries.

  • Common tube materials include steel, copper, aluminum, and plastic.

  • Steel tubes are often used in construction and industrial applications due to their strength and durability.

  • Copper tubes are commonly used in plumbing and HVAC systems for their excellent heat transfer properties.

  • Aluminum tubes are lightweight and corrosion-resistant, making them suitable for applications in the automotive and aerospace indus...read more

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Q24. Cooling tower performance

Ans.

Cooling tower performance is measured by its ability to remove heat from a process stream.

  • Cooling tower performance is affected by factors such as air flow rate, water flow rate, and temperature difference between the process stream and cooling water.

  • The efficiency of a cooling tower can be improved by increasing the surface area of the heat transfer media, using a more efficient fan, or optimizing the water distribution system.

  • Performance can be measured by the approach temp...read more

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Q25. Which electrode is use welding purpose for corbon steel to alloy steel

Ans.

For welding carbon steel to alloy steel, the electrode commonly used is E7018.

  • E7018 electrode is commonly used for welding carbon steel to alloy steel

  • It is a low-hydrogen electrode that provides strong welds with good impact resistance

  • The electrode operates on DC current and is suitable for both vertical and overhead welding positions

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Q26. WHAT IS SUPERCHARGING AND TURBOCHARGING?

Ans.

Supercharging and turbocharging are methods of increasing the power output of an engine by forcing more air into the combustion chamber.

  • Supercharging uses a belt-driven compressor to force more air into the engine

  • Turbocharging uses exhaust gases to spin a turbine which compresses air and forces it into the engine

  • Both methods increase engine power and performance

  • Superchargers provide instant boost while turbochargers have a slight delay before boost kicks in

  • Examples of superch...read more

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Q27. What is the importance of DM Plant in Power Plant

Ans.

DM Plant is crucial in power plants for removing impurities from water used in boilers, preventing scaling and corrosion.

  • DM Plant helps in producing high-purity water for boiler feed, reducing scaling and corrosion in the boiler tubes.

  • It removes impurities like calcium, magnesium, and silica from water, preventing damage to the boiler.

  • DM Plant plays a key role in maintaining the efficiency and longevity of the power plant equipment.

  • Regular maintenance and monitoring of DM Pla...read more

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Q28. What is the reason of Condenser Vaccum getting gradually lowering treand ?

Ans.

Condenser vacuum gradually lowering trend may be due to air leakage, cooling water temperature increase, or decrease in cooling water flow rate.

  • Air leakage in the condenser system can lead to a decrease in vacuum levels.

  • Increase in cooling water temperature can reduce the efficiency of the condenser, causing vacuum levels to drop.

  • Decrease in cooling water flow rate can also impact the condenser's ability to maintain proper vacuum levels.

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Q29. Reduce the process time and call back to early

Ans.

To reduce process time and call back early, we need to analyze the current process and identify bottlenecks.

  • Analyze the current process flow

  • Identify bottlenecks and areas of improvement

  • Implement process improvements such as automation or streamlining

  • Monitor and measure the impact of changes

  • Continuously review and improve the process

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Q30. When CT of AOP motor is bypassed then what effect on the motor ?

Ans.

Bypassing the CT of an AOP motor can lead to overcurrent and damage to the motor.

  • Bypassing the CT can result in the motor drawing excessive current.

  • This can lead to overheating of the motor windings.

  • Overcurrent can cause damage to the motor components.

  • It can also pose a safety risk due to potential electrical faults.

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Q31. A 22 kw AOP motor CT cable burn again and again what is the reason ?

Ans.

The repeated burning of a 22 kW AOP motor CT cable may be due to overloading, short circuits, poor insulation, or incorrect cable sizing.

  • Check for overloading of the motor causing excessive heat in the cable

  • Inspect for short circuits in the motor or the wiring

  • Ensure proper insulation of the cable to prevent overheating

  • Verify if the cable size is appropriate for the motor's power requirements

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Q32. Which type of boiler in past company?

Ans.

The type of boiler in my past company was a high-pressure steam boiler.

  • The boiler in my past company was a high-pressure steam boiler.

  • It was used to generate steam for various industrial processes.

  • The boiler had a capacity of 10,000 pounds of steam per hour.

  • It was equipped with safety features such as pressure relief valves and temperature controls.

  • Regular maintenance and inspections were conducted to ensure its safe and efficient operation.

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Q33. What is look ahead and how find 1month look ahead in P6?

Ans.

Look ahead is a planning technique to anticipate future activities. In P6, the 1-month look ahead can be found using filters and layouts.

  • Look ahead is a proactive planning approach to identify and prepare for upcoming activities.

  • In P6, the 1-month look ahead can be created by applying filters and layouts to the project schedule.

  • Filters can be set to display activities that are scheduled within the next month.

  • Layouts can be customized to show specific columns and information r...read more

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Q34. Working pr of steam in past company?

Ans.

I have experience working with steam in my past company.

  • Operated and maintained steam control systems

  • Monitored steam pressure and temperature

  • Performed regular inspections and maintenance on steam equipment

  • Troubleshooted and resolved steam-related issues

  • Ensured compliance with safety regulations and protocols

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Q35. Tell the interlock and permissive of boiler and turbine?

Ans.

Interlocks and permissives are safety mechanisms in place to prevent unsafe operation of boiler and turbine systems.

  • Interlocks prevent certain actions from taking place unless specific conditions are met

  • Permissives allow certain actions to take place only if specific conditions are met

  • Example of interlock: Boiler feed pump interlock prevents the boiler from starting unless the feed pump is running

  • Example of permissive: Turbine start permissive allows the turbine to start only...read more

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Q36. What is different between Cooling tower and chillers in thermal equipments.

Ans.

Cooling towers remove heat from water used in industrial processes, while chillers cool water for air conditioning systems.

  • Cooling towers use evaporation to remove heat from water, while chillers use refrigeration to cool water.

  • Cooling towers are used in industrial processes such as power plants, while chillers are used in air conditioning systems for buildings.

  • Cooling towers are typically larger and more complex than chillers.

  • Examples of cooling tower applications include co...read more

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Q37. How to calculate the pressure vessels blank diameter for dishes in hemisphere type

Ans.

Calculating pressure vessel blank diameter for hemisphere type dishes

  • Determine the required volume and pressure of the vessel

  • Calculate the radius of the hemisphere using the formula r = d/2

  • Calculate the surface area of the hemisphere using the formula SA = 2πr^2

  • Calculate the required thickness of the vessel walls using the formula t = PR/(2SE - 0.2P)

  • Calculate the blank diameter using the formula BD = 2r + 2t

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Q38. WHAT IS CARBON CREDIT AND ITS VALUE IN EURO?

Ans.

Carbon credit is a permit that allows a company to emit a certain amount of carbon dioxide or other greenhouse gases.

  • Carbon credits are traded on carbon markets.

  • The value of a carbon credit in Euro varies depending on the market demand and supply.

  • The European Union Emissions Trading System (EU ETS) is the largest carbon market in the world.

  • In 2021, the price of a carbon credit in the EU ETS reached a record high of over 50 Euro per tonne of CO2.

  • Carbon credits can be used by c...read more

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Q39. Difference between working principles of these machines,requirements,efficiency formulas

Ans.

The working principles, requirements, and efficiency formulas of machines vary depending on their type and purpose.

  • Working principles: Machines can operate based on mechanical, electrical, hydraulic, or pneumatic principles.

  • Requirements: Machines may require power sources, specific operating conditions, maintenance, and safety measures.

  • Efficiency formulas: Different machines have specific efficiency formulas based on their output and input parameters.

  • Examples: Working princip...read more

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Q40. If in back pressure turbine when inlet flow 40TPH but outlet flow 37TPH exuast then

Ans.

The back pressure turbine is experiencing a flow imbalance between the inlet and outlet, resulting in a lower outlet flow than the inlet flow.

  • Possible causes could include a restriction in the turbine outlet, leakage in the system, or incorrect measurement of flow rates.

  • Check for any blockages or obstructions in the turbine outlet that may be causing the flow imbalance.

  • Verify the accuracy of the flow measurement devices to ensure correct readings are being obtained.

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Q41. What are the 7 types of chemical hazards?

Ans.

The 7 types of chemical hazards are physical, health, fire, reactivity, explosive, corrosive, and toxic.

  • Physical hazards: flammable, combustible, and explosive chemicals

  • Health hazards: carcinogens, irritants, and sensitizers

  • Fire hazards: chemicals that can ignite or fuel fires

  • Reactivity hazards: chemicals that can react violently with other substances

  • Explosive hazards: chemicals that can explode under certain conditions

  • Corrosive hazards: chemicals that can corrode or destroy ...read more

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Q42. Chemical vs Biological oxygen demand in Water chemistry

Ans.

Chemical and Biological Oxygen Demand are measures of water quality and indicate the amount of oxygen required to break down organic matter.

  • Chemical Oxygen Demand (COD) measures the amount of oxygen required to oxidize organic and inorganic matter in water.

  • Biological Oxygen Demand (BOD) measures the amount of oxygen required by microorganisms to break down organic matter in water.

  • COD is a faster test and measures both biodegradable and non-biodegradable organic matter.

  • BOD is ...read more

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Q43. Which are the equipment used in steam turbine? And their principal and working and troubleshooting?

Ans.

Equipment used in steam turbine include turbine blades, nozzles, casing, rotor, bearings, and governor.

  • Turbine blades: convert steam energy into mechanical energy

  • Nozzles: control the flow of steam into the turbine

  • Casing: contains and directs the steam flow through the turbine

  • Rotor: connected to the turbine blades and rotates to generate power

  • Bearings: support the rotor and reduce friction

  • Governor: regulates the speed of the turbine

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Q44. If gas pressure is low what are the possibility and what is the corrective actions taken by you ?

Ans.

Low gas pressure can lead to various issues like inefficient operation or equipment failure. Corrective actions include checking for leaks, adjusting regulators, and ensuring proper ventilation.

  • Check for leaks in the gas system

  • Adjust regulators to increase gas pressure

  • Ensure proper ventilation for gas combustion

  • Inspect gas supply lines for blockages or restrictions

  • Verify that gas appliances are functioning properly

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Q45. 1.At drum level low ID will not run 2.PA will not run if ID not running 3.FD will not run if ID and PA not at running condition 4.Rotary feeder will not run if PA not running

Ans.

The operation of various components in a system is dependent on the running condition of other components.

  • ID must be running for drum level low

  • PA requires ID to be running

  • FD needs both ID and PA to be running

  • Rotary feeder is dependent on PA running

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Q46. What is Ind AS 115 and how does it apply to financial reporting? Explain 5 step?

Ans.

Ind AS 115 is a new revenue recognition standard that impacts how revenue is recognized in financial statements.

  • Ind AS 115 is based on the core principle that revenue should be recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled.

  • The standard outlines a 5-step model for recognizing revenue: identify the contract with the customer, identify the performance obligation...read more

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Q47. Do you know oracle or sap?

Ans.

Yes, I have knowledge of both Oracle and SAP.

  • I have experience working with Oracle databases and SAP ERP systems.

  • I am familiar with Oracle's SQL and PL/SQL languages.

  • I have used SAP modules such as SAP FI/CO and SAP MM.

  • I have completed training courses on Oracle and SAP.

  • I have successfully implemented Oracle and SAP solutions in previous projects.

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Q48. What is the treatment of leases under Ind AS 116?

Ans.

Under Ind AS 116, leases are recognized as right-of-use assets and lease liabilities on the balance sheet.

  • Leases are classified as finance leases or operating leases based on specific criteria.

  • For finance leases, the lessee recognizes a right-of-use asset and a lease liability on the balance sheet.

  • For operating leases, the lessee recognizes a right-of-use asset and a corresponding liability on the balance sheet.

  • Lease payments are apportioned between interest expense on the le...read more

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Q49. How many tonn flow attemper flow

Ans.

The question is asking about the tonnage flow rate of the attemper flow.

  • The tonnage flow rate refers to the amount of material or substance flowing through a system per unit of time.

  • The attemper flow is a term used in control room engineering to describe the flow of a cooling medium, such as water, to regulate temperature.

  • To answer the question, specific data on the attemper flow rate in tons would be required.

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Q50. What is the purpose of job changing

Ans.

Job changing can provide new challenges, opportunities for growth, higher salary, better work-life balance, and improved job satisfaction.

  • Opportunity for career advancement

  • Higher salary and benefits

  • Improved work-life balance

  • Enhanced job satisfaction

  • Acquiring new skills and experiences

  • Escaping a toxic work environment

  • Geographical relocation

  • Seeking better company culture

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Q51. What is PWHT.? POST heating and Pre heating? PMI NDT P-91 Material Site Observation Report MIS KPI SITE TRAINING WELDING

Ans.

PWHT stands for Post Weld Heat Treatment. It is a process used to relieve residual stresses and improve the mechanical properties of welds.

  • PWHT is commonly used in the welding industry to prevent cracking and improve the overall quality of welds.

  • Post heating and pre heating are processes used before and after welding to control the cooling rate of the material and reduce the risk of cracking.

  • PMI stands for Positive Material Identification, a technique used to analyze the comp...read more

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Q52. Emergencies You face in a Thermal power plant

Ans.

Emergencies in a thermal power plant can include fires, equipment failures, and electrical faults.

  • Fires can occur due to fuel leaks or electrical malfunctions.

  • Equipment failures can lead to shutdowns or accidents.

  • Electrical faults can cause power outages or damage to equipment.

  • Other emergencies may include steam leaks, chemical spills, or worker injuries.

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Q53. Suddenly break live pipeline so what you do that's why without shut down plant.

Ans.

I would immediately isolate the affected section of the pipeline and divert the flow to a safe location while ensuring minimal disruption to plant operations.

  • Isolate the affected section of the pipeline to contain the leak

  • Divert the flow to a safe location to prevent further damage

  • Implement temporary measures such as using clamps or valves to stop the leak

  • Coordinate with the team to assess the situation and plan for permanent repairs

  • Ensure safety protocols are followed throug...read more

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Q54. How many types of bearing

Ans.

There are several types of bearings used in various industries.

  • There are two main categories of bearings: plain bearings and rolling bearings.

  • Rolling bearings can be further classified into ball bearings and roller bearings.

  • Ball bearings include deep groove ball bearings, angular contact ball bearings, and thrust ball bearings.

  • Roller bearings include cylindrical roller bearings, tapered roller bearings, spherical roller bearings, and needle roller bearings.

  • Other types of bear...read more

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Q55. What's fault of blower and how to vibration check?

Ans.

Blower faults can include bearing wear, imbalance, and misalignment. Vibration checks can be done using specialized equipment.

  • Common blower faults include bearing wear, imbalance, and misalignment

  • Vibration checks can be done using specialized equipment such as a vibration analyzer

  • Check for any unusual noise or vibration during operation

  • Inspect the blower for any signs of wear or damage

  • Ensure proper lubrication of bearings and other moving parts

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Q56. How to assign new chennal in Honeywell DCS ?

Ans.

To assign a new channel in Honeywell DCS, you need to access the configuration software and follow the steps to add the channel.

  • Access the Honeywell DCS configuration software

  • Navigate to the channel configuration section

  • Add a new channel by specifying the channel number, type, and other relevant parameters

  • Save the changes and verify the new channel is successfully assigned

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Q57. How to assign soft tag and hard tag in DCS logic.

Ans.

Soft tags are assigned in software while hard tags are assigned in hardware.

  • Soft tags are used for variables that are not directly connected to hardware.

  • Hard tags are used for variables that are directly connected to hardware.

  • Soft tags can be assigned through the DCS software.

  • Hard tags are assigned through the hardware configuration.

  • Examples of soft tags include calculated values and setpoints.

  • Examples of hard tags include temperature sensors and valve positions.

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Q58. What is difference between RTD and thermocouple used

Ans.

RTD measures temperature using resistance change, while thermocouple uses voltage change.

  • RTD stands for Resistance Temperature Detector, while thermocouple generates voltage based on temperature difference.

  • RTDs are more accurate and stable compared to thermocouples.

  • RTDs have higher initial cost but lower long-term maintenance cost.

  • Thermocouples are more rugged and can withstand higher temperatures than RTDs.

  • Example: RTD is made of platinum, while a common type of thermocouple...read more

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Q59. Types of work permit?

Ans.

There are various types of work permits depending on the country and purpose of employment.

  • Temporary work permits

  • Permanent work permits

  • Seasonal work permits

  • Student work permits

  • Intra-company transfer work permits

  • Skilled worker permits

  • Business visit permits

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Q60. Hazards involved in Power Plants

Ans.

Power plants have hazards such as electrical, chemical, thermal, and radiological hazards.

  • Electrical hazards include electrocution, arc flashes, and electrical burns.

  • Chemical hazards include exposure to toxic chemicals and gases.

  • Thermal hazards include burns and heat stress.

  • Radiological hazards include exposure to ionizing radiation.

  • Other hazards include fire, explosion, and mechanical hazards.

  • Examples of power plants include nuclear power plants, coal-fired power plants, and...read more

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Q61. Pump lineup and its efficiency

Ans.

Pump lineup is crucial for efficient operation. Proper selection and maintenance can improve efficiency.

  • Pump lineup should be selected based on the required flow rate and head

  • Centrifugal pumps are commonly used for low viscosity fluids while positive displacement pumps are used for high viscosity fluids

  • Efficiency can be improved by proper maintenance such as regular cleaning and lubrication

  • Variable frequency drives can also improve efficiency by adjusting the pump speed to ma...read more

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Q62. Cooling system and working principle of cooling tower.

Ans.

Cooling towers are heat rejection devices that use water to remove heat from a process or system.

  • Cooling towers work on the principle of evaporation, where heat is transferred from the water to the air through the process of evaporation.

  • The hot water from the system is pumped to the top of the cooling tower, where it is distributed over the fill media to increase the surface area for evaporation.

  • As the water evaporates, it removes heat from the remaining water, which then flo...read more

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Q63. Water treatment of DM water and Drum water speciation.

Ans.

Water treatment of DM water and Drum water speciation involves processes to remove impurities and ensure water quality.

  • DM water treatment involves processes like reverse osmosis, ion exchange, and UV sterilization to remove impurities.

  • Drum water speciation involves analyzing the chemical composition of water in drums to ensure it meets required standards.

  • Both processes are crucial in industries like pharmaceuticals, electronics, and power plants to maintain water quality.

  • Regu...read more

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Q64. How to calculate Boiler direct & indirect efficiency ?

Ans.

Boiler efficiency can be calculated by measuring the heat input and heat output of the boiler.

  • Calculate the heat input by measuring the fuel flow rate, fuel calorific value, and fuel consumption.

  • Calculate the heat output by measuring the steam flow rate and steam enthalpy.

  • Direct efficiency = (Heat output / Heat input) * 100%

  • Indirect efficiency = Direct efficiency * Boiler efficiency of other components (like economizer, air preheater, etc.)

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Q65. What is the monthly maintenance cost of your section ?

Ans.

The monthly maintenance cost of my section is approximately $10,000.

  • The monthly maintenance cost includes expenses for spare parts, labor, equipment rental, and utilities.

  • Regular maintenance tasks such as lubrication, inspections, and repairs contribute to the overall cost.

  • Cost may vary depending on the size of the section, age of equipment, and frequency of maintenance activities.

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Q66. What is the synchronisation process of plant ?

Ans.

Synchronisation process of a plant involves matching the frequency, voltage, and phase angle of the incoming generator with the grid.

  • Ensure the generator frequency matches the grid frequency (50Hz or 60Hz).

  • Match the voltage levels of the generator with the grid.

  • Adjust the phase angle of the generator to synchronize with the grid.

  • Use synchronizing equipment like synchroscope or synchronizing lamps to ensure proper synchronization.

  • Once synchronized, close the circuit breaker to...read more

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Q67. What is the importance of TBT

Ans.

TBT (Tributyltin) is important in power plants for preventing biofouling in cooling systems.

  • TBT is used as a biocide to control the growth of organisms such as algae, barnacles, and mussels in cooling water systems.

  • Preventing biofouling helps maintain efficient heat transfer in power plant equipment.

  • TBT is regulated due to its environmental impact, as it can be toxic to marine life and bioaccumulate in the food chain.

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Q68. What is a buyer?

Ans.

A buyer is a person or entity who purchases goods or services in exchange for money or other forms of payment.

  • Buyers can be individuals or organizations.

  • They play a crucial role in the supply chain by selecting and procuring products or services.

  • Buyers negotiate prices, terms, and conditions with sellers.

  • They may conduct market research to identify potential suppliers and evaluate their offerings.

  • Buyers may also be responsible for managing supplier relationships and ensuring ...read more

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Q69. pH value in feed pump and Boiler.

Ans.

pH value is critical in feed pump and boiler to maintain water quality and prevent corrosion.

  • pH value in feed pump should be between 7.5 to 9.5 to prevent corrosion and scaling

  • pH value in boiler should be between 10.5 to 12.0 to prevent acidic corrosion

  • pH value can be controlled by adding chemicals like sodium hydroxide or sulfuric acid

  • Regular monitoring and adjustment of pH value is necessary to ensure efficient operation and prevent damage

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Q70. What is the scope in this area?

Ans.

The scope in energy management is vast and growing rapidly.

  • Energy efficiency improvements in buildings and industries

  • Renewable energy sources like solar, wind, and hydro power

  • Smart grid technology and energy storage solutions

  • Carbon footprint reduction and sustainability initiatives

  • Energy audits and management systems

  • Demand response programs and energy conservation measures

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Q71. What is safety key ponts of boilers.

Ans.

Key safety points of boilers include proper maintenance, regular inspections, and adherence to safety protocols.

  • Regular maintenance to prevent leaks and malfunctions

  • Proper ventilation to avoid carbon monoxide buildup

  • Adherence to safety protocols such as wearing protective gear and following operating procedures

  • Regular inspections to identify potential hazards and address them promptly

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Q72. Brief discussion about alternator and transformer protection system ?

Ans.

Alternator and transformer protection systems are essential for preventing damage and ensuring safe operation.

  • Alternator protection systems typically include overcurrent, overvoltage, and reverse power protection to safeguard the alternator from damage.

  • Transformer protection systems often involve differential protection, overcurrent protection, and temperature monitoring to prevent overheating and insulation breakdown.

  • Both systems may also incorporate alarm systems and automa...read more

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Q73. Tell us about the Woodward 505 ?

Ans.

Woodward 505 is a versatile control system used in industrial applications.

  • The Woodward 505 is a widely used control system in industries such as power generation, oil and gas, and marine.

  • It offers advanced features like PID control, sequencing, and communication capabilities.

  • The Woodward 505 is known for its reliability and robustness in harsh operating environments.

  • It can be easily integrated with various types of sensors and actuators for precise control.

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Q74. What is PID and How does it work ?

Ans.

PID stands for Proportional-Integral-Derivative, a control loop feedback mechanism used in engineering.

  • PID is a control algorithm that calculates an error value as the difference between a desired setpoint and a measured process variable.

  • Proportional (P) control responds to the current error value.

  • Integral (I) control accumulates past errors to correct the present error.

  • Derivative (D) control predicts future errors based on the rate of change of the error.

  • The combined use of ...read more

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Q75. Boiler light up procedure .

Ans.

The boiler light up procedure is the process of starting and igniting a boiler to generate steam.

  • Ensure all safety measures are in place before starting the procedure.

  • Open the boiler's fuel and air supply valves.

  • Purge the boiler of any remaining gases.

  • Ignite the pilot burner or spark igniter.

  • Monitor the flame and adjust fuel and air flow as needed.

  • Gradually increase the boiler's load and steam pressure.

  • Perform necessary checks and tests to ensure proper functioning.

  • Continue m...read more

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Q76. What do you understand by 4 wire and 2 wire

Ans.

4 wire and 2 wire are configurations used in electrical circuits for measuring resistance.

  • 4 wire configuration is used for accurate resistance measurements by eliminating lead resistance

  • 2 wire configuration is simpler but less accurate due to lead resistance affecting measurements

  • Examples: 4 wire used in precision instruments like multimeters, 2 wire used in basic circuit testing

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Q77. What is thickness of the membrane

Ans.

The thickness of the membrane depends on the type of membrane and its application.

  • The thickness of a membrane can range from a few nanometers to several millimeters.

  • The thickness of a membrane is determined by its intended use and the materials used to make it.

  • For example, the thickness of a reverse osmosis membrane used in water treatment can range from 0.1 to 0.5 microns.

  • Similarly, the thickness of a cell membrane can range from 5 to 10 nanometers.

  • The thickness of a membran...read more

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Q78. What is the current CTC

Ans.

CTC stands for Cost to Company, it refers to the total salary package of an employee including all benefits and perks.

  • CTC includes salary, bonuses, benefits, and any other perks provided by the company

  • It is important to consider CTC when evaluating job offers

  • CTC can vary based on the level of the position, industry, and company policies

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Q79. What is mean RT in wastewater treatment plant

Ans.

RT in wastewater treatment plant refers to the retention time, which is the amount of time wastewater remains in a treatment system.

  • RT is a critical parameter in wastewater treatment plants as it determines the efficiency of the treatment process.

  • It is calculated by dividing the volume of the reactor by the flow rate of influent wastewater.

  • A longer retention time allows for more thorough treatment of contaminants in the wastewater.

  • Shorter retention times may result in incompl...read more

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Q80. How do you calculate plant efficiency?

Ans.

Plant efficiency is calculated by dividing the actual output by the maximum possible output and multiplying by 100.

  • Determine the maximum possible output of the plant

  • Measure the actual output of the plant

  • Divide the actual output by the maximum possible output

  • Multiply the result by 100 to get the efficiency percentage

  • Efficiency = (Actual Output / Maximum Possible Output) x 100

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Q81. Steam Drum level Transmitter type & it's working principle.

Ans.

Steam drum level transmitter measures the level of water in the steam drum using differential pressure.

  • Uses differential pressure to measure the level of water in the steam drum

  • Consists of two pressure sensors, one at the bottom and one at the top of the drum

  • The difference in pressure between the two sensors is proportional to the level of water in the drum

  • Common types include capacitance, ultrasonic, and radar transmitters

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Q82. What is exothermic vs endothermic?

Ans.

Exothermic reactions release energy while endothermic reactions absorb energy.

  • Exothermic reactions release heat or light energy to the surroundings.

  • Endothermic reactions absorb heat or light energy from the surroundings.

  • Examples of exothermic reactions include combustion, oxidation, and neutralization.

  • Examples of endothermic reactions include melting of ice, evaporation of water, and photosynthesis.

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Q83. 4CPM PERT 5. Earlier job responsibilities and activities that you look after

Ans.

As a Senior Executive, I have looked after various job responsibilities and activities in my previous roles.

  • Managed cross-functional teams to achieve project goals

  • Developed and implemented strategic plans to increase revenue

  • Analyzed market trends and conducted competitor research

  • Led business development initiatives to expand customer base

  • Ensured compliance with regulatory requirements and company policies

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Q84. COMPARE 2 STROKE 4 STROKE ENGINES

Ans.

2 stroke engines have higher power output but lower fuel efficiency compared to 4 stroke engines.

  • 2 stroke engines have a simpler design with fewer moving parts.

  • 2 stroke engines produce power every revolution while 4 stroke engines produce power every other revolution.

  • 2 stroke engines require a mixture of oil and fuel while 4 stroke engines have a separate oil system.

  • 4 stroke engines have better fuel efficiency and produce less emissions than 2 stroke engines.

  • Examples of 2 str...read more

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Q85. Explain the structure of the Honeywell DCS ?

Ans.

The Honeywell DCS (Distributed Control System) is a modular system consisting of controllers, I/O modules, and operator stations.

  • Consists of controllers, I/O modules, and operator stations

  • Uses a network to communicate between components

  • Allows for centralized control and monitoring of processes

  • Supports various communication protocols such as Modbus, OPC, etc.

  • Example: Honeywell Experion PKS

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Q86. Types of boilers ? Functions of boilers ? Various welding process and various NDT process ?

Ans.

Types of boilers include fire tube, water tube, and electric boilers. Boilers function to generate steam or hot water for heating or power generation. Various welding processes include TIG, MIG, and stick welding. Various NDT processes include ultrasonic testing, radiography, and magnetic particle testing.

  • Types of boilers: fire tube, water tube, electric boilers

  • Functions of boilers: generate steam or hot water for heating or power generation

  • Various welding processes: TIG, MIG...read more

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Q87. How to reduce Geho pump running hours

Ans.

Reduce Geho pump running hours

  • Optimize pump settings and operating conditions

  • Implement regular maintenance and cleaning schedule

  • Use high-quality lubricants and replace worn-out parts

  • Consider upgrading to a more efficient pump model

  • Monitor pump performance and adjust as needed

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Q88. Work scope for witness and review of testing of electrical equipments

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Q89. How can you add value to Thermax ?

Ans.

I can add value to Thermax by leveraging my strong sales experience, building relationships with clients, and implementing strategic sales strategies.

  • Utilizing my extensive sales experience to drive revenue growth

  • Building and maintaining strong relationships with clients to ensure customer satisfaction and loyalty

  • Implementing strategic sales strategies to penetrate new markets and increase market share

  • Providing valuable insights and feedback to improve products and services

  • Co...read more

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Q90. How to optimized cost ,what is silica removal ,

Ans.

Silica removal is a process used to optimize cost by reducing the presence of silica in a system.

  • Utilize filtration methods to remove silica particles from water or other liquids

  • Consider using ion exchange resins to selectively remove silica from a solution

  • Implement reverse osmosis or electrodialysis processes to effectively remove silica from water

  • Regularly monitor silica levels to ensure efficient removal and cost optimization

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Q91. What is free float & total float?

Ans.

Free float is the amount of time a task can be delayed without affecting the project's critical path. Total float is the total amount of time a task can be delayed without delaying the project's completion.

  • Free float is specific to an individual task, while total float is applicable to the entire project.

  • Free float is calculated by subtracting the early start date of a task from the early finish date of its successor task.

  • Total float is calculated by subtracting the early sta...read more

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Q92. What are the high strength materials?

Ans.

High strength materials are materials that possess superior mechanical properties and can withstand high loads and stresses.

  • High strength steels, such as AISI 4340 and AISI 4140, are commonly used in structural applications.

  • Titanium alloys, like Ti-6Al-4V, are known for their high strength-to-weight ratio and are used in aerospace and medical implants.

  • Nickel-based superalloys, such as Inconel 718, exhibit excellent strength at high temperatures and are used in gas turbines.

  • Fi...read more

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Q93. How to know material like cs ss and as

Ans.

Material like CS, SS, and AS can be identified based on their composition, properties, and application.

  • CS stands for Carbon Steel, which contains mainly carbon and iron. It is commonly used in construction and industrial applications.

  • SS stands for Stainless Steel, which contains chromium and nickel in addition to iron. It is known for its corrosion resistance and is used in food processing, medical equipment, and aerospace.

  • AS stands for Alloy Steel, which contains elements li...read more

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Q94. Explain the necessity for flow optimization in heat exchangers

Ans.

Flow optimization in heat exchangers is necessary to ensure efficient heat transfer and maximize energy savings.

  • Optimizing flow patterns helps to increase heat transfer efficiency

  • Proper flow distribution reduces fouling and scaling, improving heat exchanger performance

  • Optimizing flow rates can help minimize pressure drop and energy consumption

  • Flow optimization can also help in achieving uniform temperature distribution within the heat exchanger

  • Examples: Using baffles to enhan...read more

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Q95. How to improve ahp watter recycling 100

Ans.

Improving AHP water recycling to 100% requires a multi-faceted approach.

  • Invest in advanced water treatment technologies

  • Implement strict water conservation measures

  • Regularly monitor and maintain equipment

  • Educate employees and stakeholders on the importance of water conservation

  • Collaborate with local government and community organizations to promote sustainable water practices

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Q96. Which is an exothermic reaction?

Ans.

An exothermic reaction releases heat to the surroundings.

  • Exothermic reactions have a negative enthalpy change.

  • Examples include combustion, neutralization, and some types of polymerization.

  • They are often used in hand warmers and self-heating food packaging.

  • Exothermic reactions can be dangerous if they release too much heat too quickly, causing explosions or fires.

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Q97. What is MIS? Describe one example

Ans.

MIS stands for Management Information System, which is a computerized database that collects, processes, and presents information to support decision-making.

  • MIS helps in organizing and analyzing data to provide managers with information needed for decision-making

  • One example of MIS is a sales report that tracks sales performance, trends, and forecasts to help managers make strategic decisions

  • MIS can also include inventory management systems, customer relationship management sy...read more

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Q98. How to do Motor PM ? What is your favorite work?

Ans.

Motor PM involves regular maintenance and inspection of motors to ensure optimal performance and prevent breakdowns.

  • Perform regular visual inspections of the motor to check for any signs of wear or damage

  • Check and replace worn or damaged parts such as bearings, belts, and brushes

  • Clean the motor and its components to prevent buildup of dirt and debris

  • Perform tests to check the motor's electrical and mechanical performance

  • Keep detailed records of maintenance and repairs for fut...read more

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Q99. Synchronisation of generator, motor protection and maintenance.

Ans.

Synchronisation of generator involves aligning the speed and phase of the generator with the grid before connecting them. Motor protection and maintenance are crucial for ensuring the longevity and efficiency of the motor.

  • Synchronisation of generator involves matching the frequency, voltage, and phase angle of the generator with the grid before connecting them.

  • Motor protection includes measures such as overload protection, short circuit protection, and thermal protection to p...read more

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Q100. Soil liquid & plastic limit criteria and compaction test requirement

Ans.

Soil liquid & plastic limit criteria and compaction test requirement

  • Soil liquid limit is the moisture content at which soil transitions from a plastic to a liquid state

  • Soil plastic limit is the moisture content at which soil can be rolled into a thread of a specific diameter without breaking

  • Compaction test is used to determine the optimal moisture content and maximum dry density of soil for construction

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