OSHA 30 Construction Safety Exam Prep 2026 | Complete OSHA
30-Hour Construction Training Study Guide with 170+ Practice
Questions and Verified Answers | Hazard Recognition, Fall
Protection, Scaffolding, Electrical Safety, Excavation, PPE, OSHA
Standards and Compliance, Real-World Construction Site
Scenarios, and Final Review to Pass the OSHA 30 Construction
Safety Certification Exam
Question 1:
What does OSHA stand for?
• A) Occupational Safety and Health Administration
• B) Occupational Safety and Health Association
• C) Office of Safety and Health Administration
• D) Office of Safety and Health Association
Correct Option: A
• Rationale: OSHA stands for the Occupational Safety and Health Administration.
It is a federal agency responsible for ensuring safe and healthy working
conditions.
Question 2:
Which of the following is a common hazard in construction?
• A) Slips and falls
• B) Office distractions
• C) Long meetings
• D) Water cooler gossip
Correct Option: A
• Rationale: Slips and falls are among the most common hazards on construction
sites, leading to serious injuries.
Question 3:
What is the main purpose of a safety data sheet (SDS)?
• A) To document employee attendance
• B) To provide detailed information about hazardous materials
, • C) To track project costs
• D) To outline company goals
Correct Option: B
• Rationale: An SDS provides essential information regarding the properties,
handling, and safety measures associated with hazardous materials.
Question 4:
Which piece of personal protective equipment (PPE) is most critical when working
at heights?
• A) Safety glasses
• B) Hard hat
• C) Harness
• D) Steel-toed boots
Correct Option: C
• Rationale: A harness is crucial for fall protection when working at heights,
preventing serious injuries from falls.
Question 5:
In the event of a workplace emergency, what is the first action an employee should
take?
• A) Contact a family member
• B) Try to extinguish any fires
• C) Follow the emergency action plan
• D) Leave the site immediately
Correct Option: C
• Rationale: Following the emergency action plan ensures that proper procedures
are adhered to for safety during emergencies.
Question 6:
Which of the following is a feature of a safe scaffold?
• A) Unstable base
• B) Defective planks
, • C) Properly secured and constructed
• D) Missing guardrails
Correct Option: C
• Rationale: A safe scaffold must be properly secured and constructed to ensure
stability and worker safety.
Question 7:
What should be done when a worker sees a potentially hazardous condition?
• A) Ignore it and continue working
• B) Report it to a supervisor
• C) Try to fix it without informing anyone
• D) Wait for another worker to notice
Correct Option: B
• Rationale: Reporting hazardous conditions to a supervisor helps ensure that
appropriate actions are taken to mitigate risks.
Question 8:
What is the most effective way to prevent hearing loss in construction workers?
• A) Avoid loud music
• B) Provide ear protection
• C) Increase work hours
• D) Limit communication
Correct Option: B
• Rationale: Providing ear protection is essential to prevent hearing loss from
prolonged exposure to loud noises on construction sites.
Question 9:
When working in a confined space, which of the following is essential?
• A) No PPE required
• B) Ventilation and monitoring
, • C) Maximum employees allowed
• D) Quick exits only
Correct Option: B
• Rationale: Proper ventilation and monitoring are vital for ensuring safety in
confined spaces due to potential hazardous atmospheres.
Question 10:
What does the term "lockout/tagout" refer to?
• A) Securing tools
• B) Energy control procedures
• C) Employee time off
• D) Project deadlines
Correct Option: B
• Rationale: Lockout/tagout procedures are used to ensure that machinery is
properly shut down and unable to be started up again before maintenance or
repair work is completed.
Question 11:
What should a worker do if they are unsure about a safety procedure?
• A) Use their best judgment
• B) Ask a knowledgeable coworker
• C) Ignore the procedure
• D) Proceed without question
Correct Option: B
• Rationale: Asking a knowledgeable coworker helps clarify safety procedures and
ensures that workers follow correct practices.
Question 12:
Which type of fire extinguisher is suitable for electrical fires?
• A) Water extinguisher
• B) Foam extinguisher
30-Hour Construction Training Study Guide with 170+ Practice
Questions and Verified Answers | Hazard Recognition, Fall
Protection, Scaffolding, Electrical Safety, Excavation, PPE, OSHA
Standards and Compliance, Real-World Construction Site
Scenarios, and Final Review to Pass the OSHA 30 Construction
Safety Certification Exam
Question 1:
What does OSHA stand for?
• A) Occupational Safety and Health Administration
• B) Occupational Safety and Health Association
• C) Office of Safety and Health Administration
• D) Office of Safety and Health Association
Correct Option: A
• Rationale: OSHA stands for the Occupational Safety and Health Administration.
It is a federal agency responsible for ensuring safe and healthy working
conditions.
Question 2:
Which of the following is a common hazard in construction?
• A) Slips and falls
• B) Office distractions
• C) Long meetings
• D) Water cooler gossip
Correct Option: A
• Rationale: Slips and falls are among the most common hazards on construction
sites, leading to serious injuries.
Question 3:
What is the main purpose of a safety data sheet (SDS)?
• A) To document employee attendance
• B) To provide detailed information about hazardous materials
, • C) To track project costs
• D) To outline company goals
Correct Option: B
• Rationale: An SDS provides essential information regarding the properties,
handling, and safety measures associated with hazardous materials.
Question 4:
Which piece of personal protective equipment (PPE) is most critical when working
at heights?
• A) Safety glasses
• B) Hard hat
• C) Harness
• D) Steel-toed boots
Correct Option: C
• Rationale: A harness is crucial for fall protection when working at heights,
preventing serious injuries from falls.
Question 5:
In the event of a workplace emergency, what is the first action an employee should
take?
• A) Contact a family member
• B) Try to extinguish any fires
• C) Follow the emergency action plan
• D) Leave the site immediately
Correct Option: C
• Rationale: Following the emergency action plan ensures that proper procedures
are adhered to for safety during emergencies.
Question 6:
Which of the following is a feature of a safe scaffold?
• A) Unstable base
• B) Defective planks
, • C) Properly secured and constructed
• D) Missing guardrails
Correct Option: C
• Rationale: A safe scaffold must be properly secured and constructed to ensure
stability and worker safety.
Question 7:
What should be done when a worker sees a potentially hazardous condition?
• A) Ignore it and continue working
• B) Report it to a supervisor
• C) Try to fix it without informing anyone
• D) Wait for another worker to notice
Correct Option: B
• Rationale: Reporting hazardous conditions to a supervisor helps ensure that
appropriate actions are taken to mitigate risks.
Question 8:
What is the most effective way to prevent hearing loss in construction workers?
• A) Avoid loud music
• B) Provide ear protection
• C) Increase work hours
• D) Limit communication
Correct Option: B
• Rationale: Providing ear protection is essential to prevent hearing loss from
prolonged exposure to loud noises on construction sites.
Question 9:
When working in a confined space, which of the following is essential?
• A) No PPE required
• B) Ventilation and monitoring
, • C) Maximum employees allowed
• D) Quick exits only
Correct Option: B
• Rationale: Proper ventilation and monitoring are vital for ensuring safety in
confined spaces due to potential hazardous atmospheres.
Question 10:
What does the term "lockout/tagout" refer to?
• A) Securing tools
• B) Energy control procedures
• C) Employee time off
• D) Project deadlines
Correct Option: B
• Rationale: Lockout/tagout procedures are used to ensure that machinery is
properly shut down and unable to be started up again before maintenance or
repair work is completed.
Question 11:
What should a worker do if they are unsure about a safety procedure?
• A) Use their best judgment
• B) Ask a knowledgeable coworker
• C) Ignore the procedure
• D) Proceed without question
Correct Option: B
• Rationale: Asking a knowledgeable coworker helps clarify safety procedures and
ensures that workers follow correct practices.
Question 12:
Which type of fire extinguisher is suitable for electrical fires?
• A) Water extinguisher
• B) Foam extinguisher
