OSHA 10-Hour Construction Safety
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
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1. The Occupational Safety and Health Administration establishes standards
to ensure workplace safety. Which of the following best describes the
primary purpose of OSHA regulations in construction environments?
A. To maximize construction project profitability through cost reduction
strategies
B. To eliminate all workplace hazards through strict enforcement of building
codes only
C. To ensure employers provide a workplace free from recognized hazards
likely to cause death or serious harm
D. To regulate only employee wages and labor contracts in construction
sites
C
OSHA’s core mandate is to require employers to maintain a workplace free
from recognized hazards that could cause serious injury or death. It focuses
on hazard prevention and safety compliance rather than wages,
profitability, or building code enforcement alone.
2. Which of the following is the most appropriate definition of a
“competent person” on a construction site?
,A. Any worker who has completed 10 hours of safety training
B. A person capable of identifying existing and predictable hazards and
authorized to take corrective action
C. A supervisor who manages payroll and scheduling only
D. A worker with the longest tenure on the project
B
A competent person is specifically trained and authorized to recognize
hazards and implement corrective measures immediately, making them
essential for maintaining site safety compliance.
3. Which hazard is most commonly associated with unprotected edges
on elevated construction platforms?
A. Chemical burns
B. Fall hazards
C. Noise-induced hearing loss
D. Electrical shock from grounded equipment
B
Unprotected edges on elevated surfaces present a significant fall hazard,
which is one of the leading causes of fatalities in construction work.
4. Which of the following is the most effective control measure for
preventing falls from heights?
A. Wearing heavy-duty gloves
B. Installing guardrails, safety nets, or personal fall arrest systems
C. Increasing worker productivity targets
D. Using high-visibility vests only
B
,Fall protection systems such as guardrails, nets, and personal arrest
systems are the most effective engineering and PPE controls for preventing
fall-related injuries.
5. What is the primary purpose of a Job Hazard Analysis (JHA)?
A. To assign wages based on task difficulty
B. To identify potential hazards and establish controls before work begins
C. To document employee attendance
D. To replace safety training requirements
B
A Job Hazard Analysis systematically evaluates tasks to identify hazards
and implement preventive controls before work starts.
6. Which of the following is required when using portable ladders on
construction sites?
A. Painting ladders for visibility
B. Ensuring ladders are placed on unstable surfaces for flexibility
C. Maintaining a 4:1 height-to-base angle ratio
D. Allowing two workers on a single ladder at all times
C
A proper 4:1 angle ratio ensures ladder stability and reduces the risk of
slipping or tipping during use.
7. Which PPE is most appropriate for protecting against falling objects?
A. Respirators
B. Hard hats
C. Steel-toe boots only
D. Hearing protection
B
, Hard hats are designed to protect workers from head injuries caused by
falling objects and overhead hazards.
8. What is the main risk associated with trenching and excavation work?
A. Heat stress
B. Cave-ins
C. Chemical exposure
D. Electrical grounding failure
B
Cave-ins are the most dangerous hazard in excavation work and can result
in fatal injuries if protective systems are not used.
9. Which protective system is commonly used to prevent trench
collapses?
A. Scaffold extension systems
B. Trench shields or shoring systems
C. Portable ladders
D. Safety cones only
B
Trench shields and shoring systems stabilize excavation walls, preventing
collapses and protecting workers inside trenches.
10. What is the safest method to de-energize electrical equipment
before maintenance?
A. Lockout/tagout procedures
B. Increasing voltage levels
C. Removing protective grounding
D. Using insulated gloves only
A
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. The Occupational Safety and Health Administration establishes standards
to ensure workplace safety. Which of the following best describes the
primary purpose of OSHA regulations in construction environments?
A. To maximize construction project profitability through cost reduction
strategies
B. To eliminate all workplace hazards through strict enforcement of building
codes only
C. To ensure employers provide a workplace free from recognized hazards
likely to cause death or serious harm
D. To regulate only employee wages and labor contracts in construction
sites
C
OSHA’s core mandate is to require employers to maintain a workplace free
from recognized hazards that could cause serious injury or death. It focuses
on hazard prevention and safety compliance rather than wages,
profitability, or building code enforcement alone.
2. Which of the following is the most appropriate definition of a
“competent person” on a construction site?
,A. Any worker who has completed 10 hours of safety training
B. A person capable of identifying existing and predictable hazards and
authorized to take corrective action
C. A supervisor who manages payroll and scheduling only
D. A worker with the longest tenure on the project
B
A competent person is specifically trained and authorized to recognize
hazards and implement corrective measures immediately, making them
essential for maintaining site safety compliance.
3. Which hazard is most commonly associated with unprotected edges
on elevated construction platforms?
A. Chemical burns
B. Fall hazards
C. Noise-induced hearing loss
D. Electrical shock from grounded equipment
B
Unprotected edges on elevated surfaces present a significant fall hazard,
which is one of the leading causes of fatalities in construction work.
4. Which of the following is the most effective control measure for
preventing falls from heights?
A. Wearing heavy-duty gloves
B. Installing guardrails, safety nets, or personal fall arrest systems
C. Increasing worker productivity targets
D. Using high-visibility vests only
B
,Fall protection systems such as guardrails, nets, and personal arrest
systems are the most effective engineering and PPE controls for preventing
fall-related injuries.
5. What is the primary purpose of a Job Hazard Analysis (JHA)?
A. To assign wages based on task difficulty
B. To identify potential hazards and establish controls before work begins
C. To document employee attendance
D. To replace safety training requirements
B
A Job Hazard Analysis systematically evaluates tasks to identify hazards
and implement preventive controls before work starts.
6. Which of the following is required when using portable ladders on
construction sites?
A. Painting ladders for visibility
B. Ensuring ladders are placed on unstable surfaces for flexibility
C. Maintaining a 4:1 height-to-base angle ratio
D. Allowing two workers on a single ladder at all times
C
A proper 4:1 angle ratio ensures ladder stability and reduces the risk of
slipping or tipping during use.
7. Which PPE is most appropriate for protecting against falling objects?
A. Respirators
B. Hard hats
C. Steel-toe boots only
D. Hearing protection
B
, Hard hats are designed to protect workers from head injuries caused by
falling objects and overhead hazards.
8. What is the main risk associated with trenching and excavation work?
A. Heat stress
B. Cave-ins
C. Chemical exposure
D. Electrical grounding failure
B
Cave-ins are the most dangerous hazard in excavation work and can result
in fatal injuries if protective systems are not used.
9. Which protective system is commonly used to prevent trench
collapses?
A. Scaffold extension systems
B. Trench shields or shoring systems
C. Portable ladders
D. Safety cones only
B
Trench shields and shoring systems stabilize excavation walls, preventing
collapses and protecting workers inside trenches.
10. What is the safest method to de-energize electrical equipment
before maintenance?
A. Lockout/tagout procedures
B. Increasing voltage levels
C. Removing protective grounding
D. Using insulated gloves only
A
