30+ Indegene Interview Questions and Answers

To identify if a pump is cavitating while working on a DCS panel, you can look for certain indicators.

• Monitor the pump's suction pressure. If it is fluctuating or dropping below the specified range, it may indicate cavitation.

• Check the pump's discharge pressure. If it is higher than normal, it could be a sign of cavitation.

• Listen for unusual noises such as a rattling or grinding sound coming from the pump.

• Inspect the pump impeller for signs of erosion or damage, which can be ...read more

To prepare a hydrocarbon vessel for vessel entry, follow these steps:

• Ensure the vessel is properly isolated from the process and all sources of energy

• Ventilate the vessel to remove any flammable or toxic gases

• Perform a thorough inspection of the vessel for any signs of leaks or damage

• Implement proper lockout/tagout procedures to prevent accidental activation of equipment

• Provide appropriate personal protective equipment (PPE) for the workers entering the vessel

• Establish a comm...read more

Prandtl number and Schmidt number are dimensionless numbers used in fluid mechanics.

• Prandtl number represents the ratio of momentum diffusivity to thermal diffusivity in a fluid.

• Schmidt number represents the ratio of momentum diffusivity to mass diffusivity in a fluid.

• Prandtl number is used to characterize the relative importance of heat transfer and momentum transfer in a fluid.

• Schmidt number is used to characterize the relative importance of momentum transfer and mass trans...read more

Pearlite is a lamellar mixture of ferrite and cementite formed during slow cooling of austenite.

• Pearlite is a microstructure commonly found in steels.

• It is formed during the eutectoid reaction when austenite transforms into ferrite and cementite.

• It has a layered structure which gives it good ductility.

• Pearlite is not a separate phase but a mixture of two phases - ferrite and cementite.

• It is commonly used in the manufacture of rails, wires, and other high-strength materials.

Types of detectors include smoke detectors, heat detectors, flame detectors, and gas detectors.

• Smoke detectors detect smoke particles in the air.

• Heat detectors sense increases in temperature.

• Flame detectors detect the presence of flames.

• Gas detectors monitor the levels of specific gases in the environment.

Diesel cycle is a constant pressure cycle while Otto cycle is a constant volume cycle.

• Diesel cycle uses compression ignition while Otto cycle uses spark ignition.

• Diesel cycle has a higher compression ratio than Otto cycle.

• Diesel cycle is more efficient than Otto cycle due to higher compression ratio.

• Otto cycle is used in gasoline engines while Diesel cycle is used in diesel engines.

Decoking process involves removing coke deposits from cracking furnace and naphtha circuit to maintain efficiency.

• Decoking process involves burning off coke deposits using controlled combustion.

• Mechanical decoking involves using high-pressure water jets to remove coke deposits.

• Chemical decoking involves using solvents or acids to dissolve coke deposits.

• Regular decoking is essential to prevent blockages and maintain furnace efficiency.

Safety procedures before starting a hot job include obtaining a hot work permit, conducting a hazard assessment, ensuring proper ventilation, and having fire extinguishing equipment nearby.

• Obtain a hot work permit before starting any hot job

• Conduct a hazard assessment to identify potential risks

• Ensure proper ventilation in the work area to prevent buildup of flammable gases

• Have fire extinguishing equipment nearby and ready for use in case of emergency

GAIL operates in the natural gas, petrochemicals, LPG transmission, and liquid hydrocarbons sectors.

• Natural Gas

• Petrochemicals

• LPG Transmission

• Liquid Hydrocarbons

Fourier law and Newton's law of cooling are both related to heat transfer.

• Fourier's law states that the rate of heat transfer through a material is proportional to the temperature gradient across the material.

• Newton's law of cooling states that the rate of heat loss of a body is proportional to the difference in temperatures between the body and its surroundings.

• Both laws are used in various fields such as engineering, physics, and chemistry.

• Fourier's law is used to calculate...read more

The headquarters of the company is located in ________.

• The company's headquarters is the main administrative center of the organization.

• It is the place where the top management of the company operates from.

• The location of the headquarters can often have an impact on the company's image and reputation.

• For example, the headquarters of Google is located in Mountain View, California.

I look for reliability, quality of products/services, and good communication.

• Reliability: I want to work with vendors who consistently deliver on time and meet their commitments.

• Quality of products/services: I want to ensure that the vendor's products or services meet my standards and expectations.

• Good communication: I want to work with vendors who are responsive and easy to communicate with, especially if issues arise.

• Examples: I may look for vendors who have a track record ...read more

Rankine cycle is a thermodynamic cycle used in power plants to generate electricity.

• It is a cycle that involves the use of steam to generate power.

• It consists of four processes: heating, expansion, cooling, and compression.

• The cycle is named after William John Macquorn Rankine, a Scottish engineer and physicist.

• It is commonly used in power plants that use fossil fuels or nuclear energy.

• The efficiency of the cycle can be improved by using superheated steam or regenerative feed...read more

There are two types of maintenance for induction motors: preventive and corrective.

• Preventive maintenance involves regular inspections, cleaning, lubrication, and replacement of worn parts to prevent breakdowns.

• Corrective maintenance involves repairing or replacing parts after a breakdown has occurred.

• Preventive maintenance is more cost-effective in the long run and helps to extend the life of the motor.

• Examples of preventive maintenance include checking for loose connections...read more

Priming is the process of filling the pump and suction pipe with liquid to remove air and create a vacuum.

• Priming is necessary to ensure the pump can function properly.

• It involves filling the pump and suction pipe with liquid to remove air and create a vacuum.

• This helps to prevent cavitation and damage to the pump.

• Priming can be done manually or automatically depending on the type of pump.

• Examples of pumps that require priming include centrifugal pumps and self-priming pumps.

Power factor should ideally be high for efficient power transmission and utilization.

• High power factor indicates efficient power transmission and utilization

• Low power factor results in increased energy losses and higher electricity bills

• Power factor can be improved using power factor correction devices like capacitors

Material science is the study of the properties and behavior of materials.

• It involves the study of the structure, properties, and performance of materials.

• It encompasses a wide range of materials including metals, ceramics, polymers, and composites.

• Material scientists use various techniques to analyze and manipulate materials, such as microscopy, spectroscopy, and mechanical testing.

• The field of material science has many practical applications, such as developing new material...read more

Eutectic point is the temperature at which a eutectic mixture solidifies or melts at a constant temperature.

• Eutectic point is the lowest possible melting point of a mixture of two or more substances.

• It is a specific composition of a mixture where the melting point is at its lowest.

• At the eutectic point, the mixture solidifies or melts at a constant temperature.

• Examples of eutectic mixtures include solder, alloys, and certain types of ceramics.

Eutectoid point is the temperature at which a eutectoid reaction occurs.

• Eutectoid point is a specific temperature at which a solid solution transforms into two or more different solid phases.

• It is a characteristic property of alloys.

• For example, the eutectoid point of steel is 727°C, at which austenite transforms into pearlite.

• Eutectoid point is important in the heat treatment of metals and alloys.

Refrigeration cycles are thermodynamic processes used in refrigerators and air conditioners to transfer heat from a low temperature reservoir to a high temperature reservoir.

• Refrigeration cycles typically involve four main components: compressor, condenser, expansion valve, and evaporator.

• The refrigerant undergoes a cycle of compression, condensation, expansion, and evaporation to absorb heat from the space being cooled.

• Common refrigerants used in refrigeration cycles include...read more

The invoice includes details of the products or services provided, their quantities, prices, taxes, and payment terms.

• Product or service description

• Quantity of products or services provided

• Price per unit

• Total price

• Taxes applied

• Payment terms

PONA test is a method used to analyze the composition of crude oil by separating it into four components: paraffins, olefins, naphthenes, and aromatics.

• PONA stands for Paraffins, Olefins, Naphthenes, and Aromatics.

• The test involves separating the crude oil into these four components to determine their individual concentrations.

• It helps in understanding the quality and properties of the crude oil, which is important for refining and processing purposes.

• The PONA test is often c...read more

GST stands for Goods and Services Tax.

• GST is a value-added tax levied on the supply of goods and services.

• It was introduced in India on July 1, 2017, to replace multiple indirect taxes.

• GST has four tax slabs - 5%, 12%, 18%, and 28%.

• It is a destination-based tax, which means the tax is collected by the state where the goods or services are consumed.

• GST has simplified the tax structure and made it easier for businesses to comply with tax regulations.

Commercial vehicles are vehicles used for business purposes. They include trucks, vans, buses, and taxis.

• Trucks: Used for transporting goods and materials.

• Vans: Used for transporting goods or passengers.

• Buses: Used for transporting large numbers of passengers.

• Taxis: Used for transporting passengers on demand.

• Delivery vehicles: Used for delivering goods to customers.

• Refrigerated trucks: Used for transporting perishable goods.

• Tanker trucks: Used for transporting liquids or gase...read more

A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of primary and secondary coils wound around a core made of ferromagnetic material.

• Step-up transformers increase voltage for long-distance power transmission, while step-down transformers decrease voltage for household use.

• Transformers are essential components i...read more

Generators convert mechanical energy into electrical energy, while motors convert electrical energy into mechanical energy.

• Generators use electromagnetic induction to generate electricity

• Motors use the interaction between magnetic fields to produce motion

• Generators have a rotating coil within a magnetic field

• Motors have a stationary coil within a magnetic field

• Examples: Electric generators in power plants, electric motors in household appliances

RTD and thermocouple are types of temperature sensors used in various industries.

• RTD stands for Resistance Temperature Detector and uses the principle of change in electrical resistance with temperature to measure temperature.

• Thermocouple uses the principle of Seebeck effect where a voltage is generated when two dissimilar metals are joined at two junctions and exposed to different temperatures.

• RTD is more accurate and stable than thermocouple but has a limited temperature ra...read more

AC motors use alternating current while DC motors use direct current.

• AC motors are commonly used in household appliances and industrial machinery.

• DC motors are often found in battery-operated devices like toys and power tools.

A pump is a mechanical device used to move fluids or gases by applying pressure or suction.

• Pumps are commonly used in various industries such as oil and gas, water treatment, and manufacturing.

• There are different types of pumps, including centrifugal pumps, positive displacement pumps, and reciprocating pumps.

• Examples of pumps include water pumps used in households, fuel pumps at gas stations, and air compressors.

• Pumps can be powered by electricity, engines, or manual operati...read more

Sensors and transducers are devices used to detect and convert physical quantities into electrical signals.

• Sensors detect physical quantities such as temperature, pressure, light, etc.

• Transducers convert the detected physical quantities into electrical signals.

• Examples include thermocouples for temperature sensing and strain gauges for pressure sensing.

The current motor voltage is typically measured in volts to determine the electrical power supply.

• Motor voltage is usually specified in volts (V)

• It is important to ensure the motor voltage matches the power supply

• Common motor voltages include 120V, 240V, and 480V

The unit of resistance is ohm (Ω), named after German physicist Georg Simon Ohm.

• The unit symbol for resistance is Ω

• Resistance is measured using an ohmmeter

• 1 ohm is equal to 1 volt per ampere (V/A)