Bharat Petroleum Apprenticeship Trainee Interview Questions and Answers

BPCL is a leading Indian oil and gas company with a strong presence in refining, marketing, and exploration.

• BPCL operates refineries in Mumbai and Kochi

• It has a strong marketing network with over 14,000 fuel stations across India

• BPCL also has a presence in exploration and production of oil and gas

• Marketing involves promoting and selling products or services to customers

• BPCL's marketing efforts include advertising, branding, and customer engagement

Auto transformer is a type of transformer that has a single winding, while a transformer has separate primary and secondary windings.

• Auto transformer has a single winding, while transformer has separate primary and secondary windings.

• Auto transformer has a common portion of winding shared by both primary and secondary circuits.

• Auto transformer is smaller in size and lighter in weight compared to transformer.

• Auto transformer is less expensive than transformer.

• Auto transformer ...read more

Conditions for parallel operations of transformers

• Transformers must have the same voltage ratio and phase sequence

• The transformers must have the same impedance and reactance

• The transformers must be connected to the same busbar

• The transformers must have the same vector group

• The transformers must have the same tap changer characteristics

Mass transfer and heat transfer are processes that involve the movement of material and energy, respectively, from one place to another.

• Mass transfer involves the movement of substances from one phase to another, such as in distillation or absorption processes.

• Heat transfer is the process of energy moving from a hotter object to a cooler one, such as in conduction, convection, or radiation.

• Boiling point is the temperature at which a substance changes from a liquid to a gas.

• Ty...read more

BPCL (Bharat Petroleum Corporation Limited) is a leading Indian oil and gas company.

• BPCL is a Fortune Global 500 company.

• It is involved in refining, marketing, and distribution of petroleum products.

• BPCL operates two large refineries in Mumbai and Kochi.

• The company also has a strong presence in the aviation fuel sector.

• BPCL is known for its focus on sustainability and corporate social responsibility.

The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted.

• Energy is conserved in a system

• Energy can be transferred between different forms (e.g. heat, work)

• The total energy of a closed system remains constant

• Mathematically expressed as: ΔU = Q - W, where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system

Net heat is not equal to net work done in most cases, as they represent different forms of energy transfer.

• Net heat is the transfer of thermal energy between systems due to a temperature difference.

• Net work done is the transfer of mechanical energy between systems due to a force acting over a distance.

• In many real-world scenarios, the net heat and net work done are not equal due to inefficiencies and losses.

• For example, in a car engine, some of the energy from burning fuel is...read more

Convection is the transfer of heat through a fluid (liquid or gas) by the movement of the fluid itself.

• Convection occurs when a fluid is heated, becomes less dense, and rises, carrying heat with it.

• Cooler fluid then moves in to take its place, creating a continuous cycle of heat transfer.

• Examples include boiling water in a pot and the movement of air in a room heated by a radiator.