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20+ Mol Information Processing Services India Interview Questions and Answers

Updated 4 Nov 2024

Q1. 1. What are the types of column, different types of stages/ plates, types of packing 2. troubleshooting in the column. 3. explain troubleshooting with particular example. for commissioning at entry level.

Ans.

The types of columns in commissioning engineering include packed columns and tray columns. Troubleshooting in columns involves identifying and resolving issues with pressure, temperature, flow, and separation efficiency.

  • Types of columns: packed columns and tray columns

  • Types of stages/plates: bubble cap trays, sieve trays, valve trays

  • Types of packing: structured packing, random packing

  • Troubleshooting in columns: pressure issues, temperature issues, flow issues, separation effi...read more

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Q2. In which area you are good ? Which subject in chemical engineering you are good?

Ans.

I am good in process optimization and plant design.

  • Process optimization

  • Plant design

  • Chemical reaction engineering

  • Heat and mass transfer

  • Process control

  • Process safety

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Q3. Tube pitch of shell and tube heat exchanger?

Ans.

Tube pitch is the distance between the center of two adjacent tubes in a shell and tube heat exchanger.

  • Tube pitch affects the heat transfer rate and pressure drop in the heat exchanger.

  • It is typically between 1.25 and 2 times the outside diameter of the tubes.

  • A larger tube pitch can reduce fouling and make cleaning easier, but may require more tubes and increase the size of the heat exchanger.

  • The tube pitch should be optimized based on the specific application and fluid prope...read more

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Q4. Design of Heat exchanger ?

Ans.

Heat exchanger design involves selecting appropriate materials, determining heat transfer coefficients, and optimizing flow rates.

  • Select appropriate materials based on temperature, pressure, and fluid properties

  • Determine heat transfer coefficients for both fluids

  • Optimize flow rates to maximize heat transfer while minimizing pressure drop

  • Consider factors such as fouling, corrosion, and maintenance

  • Common types include shell and tube, plate and frame, and spiral

  • Computer simulati...read more

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Q5. Type of fire and type of fire extinguisher

Ans.

Different types of fires require different types of fire extinguishers for effective suppression.

  • Class A fires involve ordinary combustibles such as wood, paper, and cloth. Water or foam extinguishers are suitable for these fires.

  • Class B fires involve flammable liquids like gasoline and oil. Carbon dioxide or dry chemical extinguishers are effective for these fires.

  • Class C fires involve energized electrical equipment. Carbon dioxide or dry chemical extinguishers that do not c...read more

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Q6. which type of dryers are widely used for commercial production?

Ans.

Industrial tumble dryers are widely used for commercial production.

  • Industrial tumble dryers are efficient and can handle large loads of laundry.

  • They are commonly used in hotels, hospitals, laundromats, and other commercial settings.

  • Examples of popular brands include Maytag, Speed Queen, and Dexter.

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Q7. What things to check before charging electrical panel?

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Q8. Motors testing and types of motor

Ans.

Motors testing involves checking the performance and efficiency of various types of motors used in electrical systems.

  • Motors testing includes checking for insulation resistance, winding resistance, and current and voltage levels.

  • Types of motors include AC motors (induction, synchronous), DC motors (brushed, brushless), and special types like stepper motors.

  • Testing methods may vary depending on the type of motor and its application.

  • Examples of motor testing equipment include i...read more

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Q9. What is process of instrument calibration?

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Q10. What is the document required for start work?

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Q11. What is work of mass flowmeter?

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Q12. Which type of LT require in open tank?

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Q13. How to design HE

Ans.

Designing a heat exchanger involves considering factors such as heat transfer requirements, fluid properties, and equipment selection.

  • Determine the heat transfer requirements based on the desired temperature change and heat load.

  • Select the appropriate type of heat exchanger based on the application, such as shell and tube, plate, or finned tube.

  • Consider the fluid properties, including flow rate, viscosity, and thermal conductivity, to ensure efficient heat transfer.

  • Design the...read more

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Q14. Transformers types and uses

Ans.

Transformers are devices that transfer electrical energy between two or more circuits through electromagnetic induction.

  • Transformers are used to step up or step down voltage levels in electrical systems.

  • Common types of transformers include power transformers, distribution transformers, and instrument transformers.

  • Power transformers are used in power generation and transmission systems.

  • Distribution transformers are used to supply power to residential and commercial buildings.

  • I...read more

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Q15. what is the is turn over of company

Ans.

The turnover rate of the company refers to the percentage of employees who leave the company within a certain period of time.

  • Turnover rate can be calculated by dividing the number of employees who left the company by the average number of employees during the same period, then multiplying by 100.

  • High turnover rates may indicate issues with company culture, management, or job satisfaction.

  • Low turnover rates can be a sign of employee satisfaction and stability within the compan...read more

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Q16. Draw fbd diagram ,of coin tossed up

Ans.

A free body diagram (FBD) of a coin tossed up shows the forces acting on the coin in the air.

  • Draw a circle to represent the coin

  • Label the weight force acting downwards

  • Label the normal force acting upwards

  • Consider air resistance as a force acting in the opposite direction of motion

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Q17. Tranning for CPR

Ans.

CPR training is essential for HSE Engineers to respond effectively in emergency situations.

  • CPR stands for cardiopulmonary resuscitation and is a life-saving technique used in emergencies.

  • Training includes learning how to perform chest compressions and rescue breaths on a person in cardiac arrest.

  • Certification in CPR is often required for HSE Engineers to ensure they can respond appropriately to medical emergencies.

  • Regular refresher courses are recommended to keep skills up to...read more

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Q18. What is P91 metal welding

Ans.

P91 metal welding refers to welding techniques used for joining P91 steel, a type of high-strength, low-alloy steel commonly used in high-temperature applications.

  • P91 steel is a type of low-alloy steel known for its high strength and creep resistance.

  • Welding P91 steel requires preheating and post-weld heat treatment to prevent cracking and maintain mechanical properties.

  • Common welding techniques for P91 steel include TIG (tungsten inert gas) welding and SMAW (shielded metal a...read more

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Q19. Control valves step for calculation

Ans.

Control valves are used to regulate the flow of fluids in a system by adjusting the opening and closing of the valve.

  • Control valves are typically used in industries such as oil and gas, chemical processing, and water treatment.

  • The step for calculating control valves involves determining the required flow rate, pressure drop, and valve size.

  • Factors such as the type of fluid, temperature, and system requirements also play a role in valve selection.

  • Control valves can be pneumati...read more

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Q20. Future goals about higher studies.

Ans.

My future goal is to pursue a Master's degree in Business Administration to enhance my skills and knowledge in the field.

  • Plan to enroll in an MBA program within the next 2 years

  • Seeking to specialize in finance or marketing

  • Goal is to leverage advanced education for career advancement

  • Considering part-time or online options for flexibility

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Q21. What is welding

Ans.

Welding is a process of joining two or more metal pieces together by melting and fusing them.

  • Welding involves applying heat to the metal pieces until they reach a melting point

  • A filler material is often used to help create a strong bond between the pieces

  • Common types of welding include arc welding, MIG welding, and TIG welding

  • Welding is used in various industries such as construction, automotive, and aerospace

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Q22. What is estimation?

Ans.

Estimation is the process of predicting or calculating the value, size, or cost of something based on available information.

  • Estimation involves making educated guesses based on available data

  • It is used in various fields such as engineering, construction, project management, and finance

  • Estimation helps in planning, budgeting, and decision-making

  • Examples include estimating the cost of a construction project, predicting the duration of a software development task, or calculating...read more

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Q23. What is design mix

Ans.

Design mix refers to the specific proportions of materials used in concrete to achieve the desired strength and durability.

  • Design mix is a predetermined combination of cement, aggregates, and water to achieve the desired properties of concrete.

  • It is based on the strength and durability requirements of the structure being constructed.

  • Design mix is calculated by weight or volume of each material to ensure consistency and quality.

  • Examples of design mix components include Portlan...read more

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Q24. Strength of materials

Ans.

Strength of materials refers to the study of the behavior of solid objects subject to stresses and strains.

  • Strength of materials involves analyzing how materials deform and fail under various loads.

  • It is important in engineering to ensure that structures and components can withstand the forces they will be subjected to.

  • Examples include calculating the maximum load a bridge can support or determining the stress distribution in a beam.

  • Factors such as material properties, geomet...read more

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Q25. Type of slump ?

Ans.

Slump is a measure of the consistency of fresh concrete.

  • Type of slump refers to the shape that the concrete mix takes when it is placed in a slump test cone and then lifted off.

  • Different types of slump include true slump, shear slump, and collapse slump.

  • True slump is a general drop in the concrete mass evenly without disintegration.

  • Shear slump indicates that one half of the concrete mass slides down or shears off.

  • Collapse slump shows that the concrete mix has collapsed comple...read more

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