Practice Questions And Correct Answers
(Verified Answers) Plus Rationales
2025|2026 Q&A | Instant Download Pdf
1. Which federal agency sets the standards for occupational safety in
demolition work?
A. EPA
B. OSHA
C. NFPA
D. ANSI
OSHA sets and enforces safety standards for construction and
demolition activities.
2. What is the minimum clearance distance for operating a demolition
crane near power lines?
A. 5 feet
B. 10 feet
C. 20 feet
, D. 50 feet
OSHA requires at least 20 feet of clearance from energized power
lines.
3. Before beginning demolition, what must be obtained to ensure legal
compliance?
A. Building permit
B. Demolition permit
C. Zoning variance
D. Environmental permit
A demolition permit is required in Ohio to legally demolish a
structure.
4. What type of soil testing is critical before excavating around a
building?
A. pH testing
B. Load-bearing capacity testing
C. Water content testing
D. Nutrient testing
Load-bearing capacity determines soil stability and safety for
excavation.
5. Asbestos in building materials must be handled according to
regulations set by:
A. CDC
B. EPA
, C. OSHA only
D. NFPA
EPA regulates asbestos removal to prevent airborne contamination
and health risks.
6. Which personal protective equipment (PPE) is required for demolition
workers handling dust?
A. Ear plugs
B. Respirator
C. Hard hat
D. Steel-toe boots
Respirators protect against inhalation of hazardous dust like
asbestos or silica.
7. How should flammable liquids be stored on a demolition site?
A. Open containers
B. In approved flammable storage cabinets
C. On the ground in plastic containers
D. Inside vehicles
OSHA and NFPA require flammable liquids to be stored in approved
safety cabinets.
8. What is the primary hazard of using heavy equipment in demolition?
A. Noise exposure
B. Crushing injuries
C. Dust inhalation
, D. Chemical burns
Heavy machinery can cause severe crushing injuries if safety
protocols are not followed.
9. Which method is safest for removing a load-bearing wall?
A. Sledgehammer only
B. Install temporary supports before removal
C. Removing one side at a time without support
D. Pushing the wall over
Temporary supports prevent structural collapse during wall removal.
10. When is a dust control plan required on a demolition site?
A. Only indoors
B. Whenever demolition generates airborne dust
C. Only in cold weather
D. Only if the building is over three stories
Dust control plans reduce health hazards and comply with OSHA
standards.
11. What is the maximum allowable slope for soil excavation under
OSHA for trenches less than 20 feet deep?
A. 0.5:1
B. 1:1
C. 1.5:1
D. 2:1
OSHA specifies 1.5:1 as the maximum safe slope for many soil types.