BLOCK FORM Questions WITH CORRECT ANSWERS
(VERIFED ANSWERS) PLUS RATIONALES 2026 Q&A
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1. What is the minimum height that requires a guardrail on
a construction site?
A. 4 ft
B. 5 ft
C. 6 ft
D. 8 ft
Rationale: OSHA/NYS requirements require fall protection
at 6 ft.
2. What is the correct slope ratio for a Type C soil
excavation?
A. 1:1
B. 1½:1
C. 2:1
D. 3:1
Rationale: Type C soil must be benched at 1½:1 maximum.
3. Which PPE is mandatory when working around airborne
silica?
A. Safety boots
B. Respirator
C. Ear plugs
, D. Hard hat
Rationale: Respirable silica requires respiratory protection.
4. A competent person must inspect a trench how often?
A. Once per week
B. Daily and after rainstorms
C. Before work begins only
D. Only when soil changes
Rationale: Frequent inspection prevents collapse risks.
5. What does NYC DOB form PW1 relate to?
A. Site cleanliness
B. Permit to work
C. Worker hours
D. Material delivery
Rationale: PW1 is the permit form for site work.
6. The primary purpose of a SWPPP is to control...
A. Noise levels
B. Stormwater runoff
C. Fire hazards
D. Worker seating
Rationale: It manages erosion and water pollution.
7. Which of the following indicates a Class A fire?
A. Flammable liquids
B. Wood and paper
C. Electrical equipment
D. Combustible metals
Rationale: Class A is ordinary combustibles.
, 8. What is the minimum distance for storing flammable
liquids from a building?
A. 5 ft
B. 10 ft
C. 20 ft
D. 30 ft
Rationale: Regulations specify minimum safe distances to
reduce fire risk.
9. Who is responsible for site safety compliance?
A. Project owner only
B. Site Safety Manager
C. Architect
D. Equipment operator
Rationale: The SSM enforces safety standards.
10. Which tool must be grounded or double-insulated?
A. Nail gun
B. Electric drill
C. Hammer
D. Wrench
Rationale: To prevent electrical shock.
11. A lockout/tagout program controls what hazard?
A. Falling objects
B. Unexpected startup of machinery
C. Heat stress
D. Noise exposure
Rationale: It prevents accidental machine energization.