CEA Jobsite Safety Procedures 3 — Questions and Answers
Question 1: What does the acronym 'GFI' or 'GFCI' stand for in electrical safety?
- Ground Fault Circuit Interrupter (Correct answer)
- Ground Fault Current Indicator
- General Fault Circuit Insulator
- Grounded Fixture Control Interface
Correct answer: Ground Fault Circuit Interrupter
GFCI stands for Ground Fault Circuit Interrupter, a device that shuts off power when it detects current leaking to ground.
Question 2: An extension cord on a construction site is found to have a damaged outer jacket exposing the inner insulation. The correct action is to:
- Wrap the damaged area with electrical tape and continue use
- Mark it with tape and report it at the end of the shift
- Remove it from service immediately and tag it as defective (Correct answer)
- Use it only for low-voltage equipment until repaired
Correct answer: Remove it from service immediately and tag it as defective
Damaged extension cords must be removed from service immediately to prevent shock or fire hazard.
Question 3: When using a ladder to access an elevated work area, the ladder must extend at least how far above the landing?
- 1 foot
- 2 feet
- 3 feet (Correct answer)
- 4 feet
Correct answer: 3 feet
OSHA requires ladders to extend at least 3 feet above the upper landing to provide a handhold for workers stepping on or off.
Question 4: Which type of fire extinguisher is appropriate for an electrical fire?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C extinguishers use non-conductive agents and are rated for electrical fires involving energized equipment.
Question 5: Before beginning work in a confined space, workers must ensure the atmosphere is tested for which conditions?
- Temperature and humidity only
- Oxygen content, flammable gases, and toxic contaminants (Correct answer)
- Carbon dioxide levels only
- Noise levels and air pressure
Correct answer: Oxygen content, flammable gases, and toxic contaminants
OSHA requires testing confined spaces for oxygen deficiency/enrichment, flammable gases, and toxic air contaminants before entry.
Question 6: Which of the following is an example of an administrative control for jobsite hazards?
- Installing machine guards
- Wearing a hard hat
- Rotating workers to limit exposure time (Correct answer)
- Substituting a less hazardous chemical
Correct answer: Rotating workers to limit exposure time
Administrative controls change how work is performed, such as rotating workers to limit exposure duration.
Question 7: What is the correct procedure when a worker finds an unlabeled container of liquid on a jobsite?
- Smell the contents to identify the substance
- Use it and report the missing label later
- Treat it as hazardous and contact the site supervisor for identification (Correct answer)
- Dispose of it in the nearest trash receptacle
Correct answer: Treat it as hazardous and contact the site supervisor for identification
Unlabeled containers must be treated as potentially hazardous and reported to a supervisor for proper identification under OSHA's HazCom standard.
CEA Jobsite Safety Procedures 3
What does the acronym 'GFI' or 'GFCI' stand for in electrical safety?