Chennai One Interview Questions and Answers

Lock out and tag out is a safety procedure used to ensure that dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work.

• Lock out: physically locking the power source of a machine to prevent it from being turned on

• Tag out: attaching a tag to the locked power source indicating that it should not be operated

• Used to prevent accidental start-up of machinery d...read more

The hydrant pump is used to supply water to fire hoses for firefighting purposes.

• Connect the pump to a water source, such as a fire hydrant

• Start the pump to create pressure in the hoses

• Direct the water flow using the fire hose nozzle

• Monitor the water supply and pressure to ensure effectiveness

Fire and safety refers to measures taken to prevent and protect against fire hazards and ensure the safety of individuals in case of a fire emergency.

• Fire safety involves implementing measures such as fire alarms, fire extinguishers, emergency exits, and fire drills to prevent fires and minimize their impact.

• Safety measures include proper training for employees on fire safety protocols, conducting regular inspections o...read more

Common chemicals used for fuel include gasoline, diesel, natural gas, and propane.

• Gasoline

• Diesel

• Natural gas

• Propane

Types of fire extinguishers include water, foam, dry powder, CO2, and wet chemical.

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

• Foam extinguishers are effective on Class A and B fires, which involve flammable liquids.

• Dry powder extinguishers are versatile and can be used on Class A, B, and C fires.

• CO2 extinguishers are best for electrical fires (Class C) as they do not...read more