Nuclear Power Corporation of India Safety Supervisor Interview Questions and Answers

There are five main types of fire extinguishers: water, foam, powder, carbon dioxide, and wet chemical.

• Water extinguishers are suitable for Class A fires involving solid materials like wood or paper.

• Foam extinguishers are effective for Class A and B fires, which involve flammable liquids like gasoline or oil.

• Powder extinguishers can be used on Class A, B, and C fires, which involve flammable gases.

• Carbon dioxide exting...read more

Types A, B, C, D, and K are classifications for fire extinguishers based on the type of fire they can extinguish.

• Type A extinguishers are for fires involving ordinary combustibles like wood or paper.

• Type B extinguishers are for fires involving flammable liquids like gasoline or oil.

• Type C extinguishers are for fires involving electrical equipment.

• Type D extinguishers are for fires involving flammable metals like magnes...read more

Mechanical safety refers to the measures taken to ensure the safe operation of machinery and equipment.

• It involves identifying and mitigating potential hazards associated with machinery and equipment

• Examples include lockout/tagout procedures, machine guarding, and regular maintenance and inspections

• Mechanical safety also includes providing proper training and personal protective equipment to workers

• Compliance with OSHA...read more

Distribution refers to the delivery of electricity from high voltage transmission lines to individual customers. Transmission refers to the movement of electricity over long distances from power plants to substations.

• Distribution involves the delivery of electricity to individual customers through a network of power lines and transformers.

• Transmission involves the movement of electricity over long distances from power ...read more