Safety Procedures and Codes Flashcards

When a pipefitter notices a co-worker not using required PPE, what is the correct first action?

Answer: Stop work and inform the co-worker and supervisor

The correct action is to stop work, inform the co-worker of the hazard, and notify the supervisor to ensure compliance and prevent injury.

Under OSHA's Process Safety Management (PSM) standard (29 CFR 1910.119), what is the threshold quantity for flammable liquids?

Answer: 10,000 pounds

OSHA PSM standard 29 CFR 1910.119 sets the threshold quantity for flammable liquids at 10,000 pounds.

What is the maximum safe working load a safety harness must support according to OSHA fall protection standards?

Answer: 5,000 lbs

OSHA requires anchorage points for personal fall arrest systems to support at least 5,000 pounds per worker attached.

In pipefitting, a 'hot work permit' is required before performing which activity?

Answer: Welding near flammable materials

A hot work permit is required before welding, cutting, or other spark-producing activities near flammable or combustible materials.

Which NFPA code specifically governs the installation of fuel gas piping systems?

Answer: NFPA 54

NFPA 54, the National Fuel Gas Code, governs the installation, maintenance, and operation of fuel gas piping systems.

What is the minimum air quality (oxygen level) required before a worker may enter a confined space without supplied air?

Answer: 19.5%

OSHA requires a minimum oxygen concentration of 19.5% in confined spaces before workers may enter without supplied air.

Which type of fire extinguisher should be used on a Class C (energized electrical) fire?

Answer: CO2 extinguisher

CO2 extinguishers are appropriate for Class C (electrical) fires because they are non-conductive and leave no residue.