Hiranandani group Safety Officer Interview Questions and Answers

Q1. How many Limit switch in tower crane.?
Ans. 
The number of limit switches in a tower crane varies depending on the specific model and manufacturer.
• The number of limit switches in a tower crane can range from 2 to 6 or more.

• Limit switches are used to prevent the crane from overtraveling in certain directions or reaching unsafe positions.

• Common types of limit switches in tower cranes include hoisting limit switches, trolley limit switches, and slewing limit switche
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Q1. Asked regarding job experience and how to tackles site if there are above 500 workmen.
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Safety scenario of dealing different types of works

Q1. Difference between earthing and bonding
Ans. 
Earthing is the process of connecting electrical systems to the ground to prevent electric shocks, while bonding is the process of connecting metal parts together to prevent static electricity buildup.
• Earthing is for safety, bonding is for preventing static electricity

• Earthing involves connecting electrical systems to the ground

• Bonding involves connecting metal parts together to prevent static electricity buildup

• Earthi...read more
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Q2. Different control measures for emergency
Ans. 
Different control measures for emergencies include evacuation, communication, training, and emergency response plans.
• Evacuation procedures should be clearly defined and practiced regularly.

• Effective communication systems should be in place to alert individuals of emergencies.

• Training programs should be conducted to educate employees on emergency procedures.

• Emergency response plans should be developed and regularly revi...read more
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Q3. Different types of fire extinguisher
Ans. 
Different types of fire extinguishers include water, foam, CO2, dry powder, 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, involving flammable liquids like petrol or oil.

• CO2 extinguishers are suitable for electrical fires and Class B fires, but not recommended for Class A fires.

• Dry powder extinguis...read more
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Q4. Different temperature at which sprinkler bulbs activates
Ans. 
Sprinkler bulbs activate at different temperatures based on the type of sprinkler system and the environment.
• Different types of sprinkler systems have different temperature ratings for their bulbs.

• Temperature ratings can range from 135°F to 286°F depending on the system.

• High temperature environments may require sprinkler bulbs with higher activation temperatures to prevent false alarms.

• Examples: Ordinary temperature-ra...read more
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Q5. Different types of detectors used in software buildings
Ans. 
Different types of detectors used in software buildings include smoke detectors, motion detectors, and heat detectors.
• Smoke detectors: detect smoke particles in the air

• Motion detectors: sense movement within a specified area

• Heat detectors: trigger an alarm when a significant increase in temperature is detected
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Q1. Cement testing, mix design, iso 9001
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