AIT Safety Practices 2 — Questions and Answers
Question 1: When working at heights above 6 feet in construction, which fall protection system is generally required by OSHA?
- Hard hat and steel-toed boots
- Personal fall arrest system, guardrails, or safety nets (Correct answer)
- A spotter standing below the worker
- A warning line placed 10 feet from the edge
Correct answer: Personal fall arrest system, guardrails, or safety nets
OSHA 29 CFR 1926.502 requires fall protection such as guardrail systems, safety nets, or personal fall arrest systems for workers at heights of 6 feet or more in construction.
Question 2: What does the acronym 'SDS' stand for in workplace safety?
- Safe Disposal System
- Safety Data Sheet (Correct answer)
- Standard Duty Specification
- Structural Design Standard
Correct answer: Safety Data Sheet
SDS stands for Safety Data Sheet, a document that provides information on hazardous chemicals including health effects, safe handling, and emergency procedures.
Question 3: A worker notices a coworker bypassing a machine guard to speed up production. What is the correct first action?
- Ignore it since it's the coworker's personal risk
- Report it immediately to a supervisor or safety officer (Correct answer)
- Wait to see if an injury occurs before reporting
- Help the coworker bypass the guard more safely
Correct answer: Report it immediately to a supervisor or safety officer
Removing or bypassing machine guards is a serious OSHA violation and creates immediate hazard; reporting it promptly protects the coworker and others.
Question 4: Which type of fire extinguisher should be used on an electrical (Class C) fire?
- Water extinguisher
- CO2 or dry chemical extinguisher (Correct answer)
- Foam extinguisher
- Wet chemical extinguisher
Correct answer: CO2 or dry chemical extinguisher
CO2 and dry chemical extinguishers are rated for Class C (electrical) fires because they are non-conductive; water and foam conduct electricity and are dangerous.
Question 5: What is the purpose of a Job Hazard Analysis (JHA)?
- To assign blame when accidents occur
- To identify and control hazards before a job task is performed (Correct answer)
- To document worker qualifications and certifications
- To estimate the time required to complete a task
Correct answer: To identify and control hazards before a job task is performed
A JHA breaks a job into steps, identifies hazards at each step, and establishes controls to eliminate or reduce those hazards before work begins.
Question 6: Under OSHA's Lockout/Tagout (LOTO) standard, who is authorized to remove a lockout device?
- Any available supervisor on shift
- The employee who installed the lock, or a designated authorized employee following specific procedures (Correct answer)
- The safety officer on duty
- Any coworker who needs to restart the machine
Correct answer: The employee who installed the lock, or a designated authorized employee following specific procedures
Only the employee who applied the lockout device, or an authorized employee following established procedures when the original employee is unavailable, may remove it.
Question 7: What is the correct way to lift a heavy object to prevent back injury?
- Bend at the waist, keep legs straight, and lift quickly
- Squat down, keep the load close to the body, and lift with the legs (Correct answer)
- Twist at the waist while lifting to use momentum
- Always use one hand for balance while lifting with the other
Correct answer: Squat down, keep the load close to the body, and lift with the legs
Proper lifting technique involves bending the knees, keeping the back straight, holding the load close, and using leg muscles to lift, minimizing spinal stress.
AIT Safety Practices 2
When working at heights above 6 feet in construction, which fall protection system is generally required by OSHA?