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GAIL Executive Trainee Interview Questions and Answers

Updated 5 Feb 2024

Q1. Difference between prandtl number and Schmidt number?

Ans.

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

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Q2. What js difference between diesel and Otto cycle?

Ans.

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.

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Q3. What are GAIL business sector?

Ans.

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

  • Natural Gas

  • Petrochemicals

  • LPG Transmission

  • Liquid Hydrocarbons

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Q4. Fourier law and newtons law of cooling?

Ans.

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

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Q5. Where its headquarter is located

Ans.

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.

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Q6. What is rankine cycle?

Ans.

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

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