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1. What is the primary hazard associated with wet concrete on a
construction site?
A) Fire risk
B) Skin burns
C) Electrical shock
D) Slip and fall
Wet concrete contains caustic materials that can cause severe
chemical burns on contact with skin.
2. What is the minimum personal protective equipment required
when handling wet concrete?
A) Hard hat and steel-toed boots
B) Safety glasses only
C) Gloves, boots, and eye protection
D) Respirator only
Gloves, boots, and eye protection prevent skin and eye contact with
caustic concrete materials.
3. How should concrete spills on skin be treated?
A) Cover with a bandage immediately
B) Flush with plenty of water and remove contaminated clothing
, C) Apply lotion
D) Leave it to dry
Immediate flushing with water dilutes the caustic material and
reduces the risk of chemical burns.
4. What is the main risk when concrete is being poured at heights?
A) Dust inhalation
B) Noise exposure
C) Falling objects and formwork collapse
D) Electrocution
Pouring concrete at heights increases the risk of falling tools,
concrete, and unstable formwork.
5. What is the recommended way to prevent formwork collapse?
A) Use temporary supports only
B) Follow design specifications and inspect supports regularly
C) Pour concrete quickly
D) Rely on gravity
Proper design and regular inspection of formwork ensure stability
during concrete placement.
6. How often should concrete mixer equipment be inspected for
safety?
A) Weekly
B) Monthly
C) Before each use
D) Annually
Equipment inspection before each use helps identify hazards that
could cause accidents.
, 7. Which type of hazard does silica dust from concrete create?
A) Fire
B) Respiratory
C) Chemical burns
D) Electrical
Silica dust can cause lung disease, including silicosis, making
respiratory protection essential.
8. What is the best method to control silica dust on a job site?
A) Using a broom
B) Wet cutting or dust collection systems
C) Wearing cotton masks
D) Ventilation fans only
Wet methods and dust collection significantly reduce airborne silica
particles.
9. What is the safe slope limit for workers on concrete formwork
without fall protection?
A) 10 degrees
B) 20 degrees
C) Less than 4 feet of unprotected height requires no additional
slope
D) Any slope is safe
OSHA allows unprotected work only at lower heights; proper fall
protection is required above certain heights.
10. What type of footwear is required on a concrete site?
A) Sneakers
B) Steel-toed boots
C) Sandals
D) Rubber flip-flops