10+ GAIL Interview Questions and Answers for Freshers

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

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.

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

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

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

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

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

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.

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