CEA Jobsite Safety Procedures 4 — Questions and Answers
Question 1: An apprentice is told to work on a circuit that the foreman says is de-energized. What should the apprentice do first?
- Begin work immediately based on the foreman's word
- Verify the circuit is de-energized using a test instrument (Correct answer)
- Post a sign warning others the circuit is de-energized
- Wait for a second worker to confirm it is de-energized
Correct answer: Verify the circuit is de-energized using a test instrument
NFPA 70E requires workers to verify an absence of voltage with a properly rated test instrument before working on circuits assumed to be de-energized.
Question 2: What does a red tag on a piece of equipment typically indicate on a construction jobsite?
- The equipment passed inspection
- The equipment is scheduled for maintenance
- The equipment is out of service and must not be used (Correct answer)
- The equipment requires a permit to operate
Correct answer: The equipment is out of service and must not be used
A red tag is commonly used to indicate equipment that is defective or unsafe and must be removed from service until repaired.
Question 3: Fall protection is required by OSHA for construction workers at heights of:
- 4 feet or more
- 6 feet or more (Correct answer)
- 8 feet or more
- 10 feet or more
Correct answer: 6 feet or more
OSHA's construction standard (29 CFR 1926.502) requires fall protection when workers are exposed to falls of 6 feet or greater.
Question 4: Which of the following is the correct sequence for the hierarchy of controls?
- PPE → Engineering → Administrative → Substitution → Elimination
- Elimination → Substitution → Engineering → Administrative → PPE (Correct answer)
- Administrative → PPE → Engineering → Elimination → Substitution
- Substitution → Elimination → PPE → Administrative → Engineering
Correct answer: Elimination → Substitution → Engineering → Administrative → PPE
The hierarchy of controls prioritizes hazard elimination first, followed by substitution, engineering controls, administrative controls, and PPE as the last resort.
Question 5: What is the purpose of a Job Hazard Analysis (JHA) before starting a task?
- To document the materials and tools required for the job
- To identify potential hazards and establish safe procedures for each step (Correct answer)
- To assign liability in case of an incident
- To estimate the time required to complete the work
Correct answer: To identify potential hazards and establish safe procedures for each step
A JHA breaks a job into steps to identify hazards at each step and determine the safest way to perform the work.
Question 6: When working in an area where overhead work is being performed, workers below must:
- Wear earplugs to protect from falling debris noise
- Wear hard hats and stay clear of the overhead work zone (Correct answer)
- Sign a liability waiver before entering the area
- Work quickly to minimize time under the hazard
Correct answer: Wear hard hats and stay clear of the overhead work zone
Hard hats protect against falling objects, and workers should also avoid the overhead work zone whenever possible.
Question 7: An employee is injured on the jobsite. After ensuring the injured worker receives care, what must the employer do within 24 hours for an in-patient hospitalization?
- File a report with the local fire department
- Report the event to OSHA (Correct answer)
- Notify the employee's next of kin
- Submit an insurance claim
Correct answer: Report the event to OSHA
OSHA requires employers to report any work-related in-patient hospitalization to OSHA within 24 hours.
CEA Jobsite Safety Procedures 4
An apprentice is told to work on a circuit that the foreman says is de-energized.
What should the apprentice do first?