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