EEI TECH EEI Tech Safety Procedures 2 — Questions and Answers
Question 1: Which class of fire extinguisher should be used on electrical fires?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C extinguishers use non-conductive agents safe for use on energized electrical equipment fires.
Question 2: A 'confined space' in utility work is defined as a space that:
- Is above ground level
- Has limited entry/exit and is not designed for continuous occupancy (Correct answer)
- Contains only electrical equipment
- Has natural ventilation
Correct answer: Has limited entry/exit and is not designed for continuous occupancy
A confined space has limited means of entry/exit, is large enough for a worker to enter, and is not intended for continuous occupancy.
Question 3: What does a yellow safety diamond on a hazmat label indicate?
- Health hazard
- Flammability
- Reactivity (Correct answer)
- Special hazard
Correct answer: Reactivity
In the NFPA 704 system, the yellow diamond indicates reactivity (instability) hazard.
Question 4: When working in a trench deeper than 5 feet, OSHA requires:
- Only hard hats
- A protective system such as sloping, shoring, or a trench box (Correct answer)
- A spotter at the surface
- Double gloves
Correct answer: A protective system such as sloping, shoring, or a trench box
OSHA requires a protective system (sloping, benching, shoring, or trench box) for any trench 5 feet or deeper.
Question 5: Which practice helps prevent back injuries when lifting heavy equipment?
- Bend at the waist, keep legs straight
- Lift with your legs, keep your back straight (Correct answer)
- Twist your torso while lifting
- Lift quickly to minimize effort
Correct answer: Lift with your legs, keep your back straight
Lifting with the legs and keeping the back straight uses stronger leg muscles and reduces spinal stress.
Question 6: What is the purpose of a Job Hazard Analysis (JHA) before starting work?
- Document completed work
- Identify potential hazards and plan controls before starting the task (Correct answer)
- Calculate labor costs
- Assign overtime pay
Correct answer: Identify potential hazards and plan controls before starting the task
A JHA systematically identifies hazards associated with each step of a job and determines controls before work begins.
EEI TECH EEI Tech Safety Procedures 2
Which class of fire extinguisher should be used on electrical fires?