DOMAIN 1: UNIT 7: Struck-by Hazards Flashcards
Which of the following is NOT considered a type of struck-by hazard according to OSHA?
A) Flying Objects
B) Falling Objects
C) Swinging Objects
D) Electrical Shock
D) Electrical Shock - While hazardous, electrical shock is not classified as a struck-by hazard by OSHA.
What is the primary reason compressed air should NOT be used for cleanup on construction sites?
A) It wastes valuable resources
B) It can launch debris, creating a flying object hazard
C) It requires additional worker training
D) It can only be used in designated areas
B) It can launch debris, creating a flying object hazard - Compressed air can turn small particles into dangerous projectiles.
A worker is struck by a piece of concrete that was chipped away during demolition. This is an example of which type of struck-by hazard?
A) Falling Object
B) Rolling Object
C) Flying Object
D) Swinging Object
C) Flying Object - Demolition activities can send debris flying, making it a flying object hazard.
Which control measure is LEAST effective at preventing struck-by hazards from falling objects?
A) Installing debris nets beneath overhead work areas
B) Using a hard hat on-site
C) Securing tools and materials to fixed objects
D) Using barricades to keep workers out of hazardous areas
B) Using a hard hat on-site - While necessary, a hard hat does not prevent falling objects but only mitigates injury.
What should workers do when moving loads with a crane to prevent excessive swinging?
A) Move loads as quickly as possible to minimize exposure
B) Ensure only experienced workers are in the area
C) Move loads slowly and in a controlled manner
D) Only perform lifts when the site is fully evacuated
C) Move loads slowly and in a controlled manner - Rapid movement increases the risk of uncontrolled swinging.
Which PPE is required for workers exposed to high-risk flying object hazards?
A) Standard safety glasses
B) Face shields over safety glasses
C) Hearing protection and gloves
D) A Type II hard hat only
B) Face shields over safety glasses - High-risk environments require additional face protection.
What is the primary function of a toe board in preventing struck-by incidents?
A) To redirect falling objects to safe zones
B) To block rolling objects from reaching workers
C) To prevent tools and materials from falling from heights
D) To serve as a visual warning for struck-by hazards
C) To prevent tools and materials from falling from heights - Toe boards help keep objects from becoming falling hazards.
A worker is standing near a stack of unstable roofing rolls. What is the BEST immediate action to prevent a struck-by hazard?
A) Instruct the worker to move quickly past the hazard
B) Secure the rolls before allowing work in the area
C) Issue a written warning to the responsible crew
D) Place a barricade around the unstable materials and continue working
B) Secure the rolls before allowing work in the area - Preventive action is the best approach to eliminate hazards.
What is the primary reason for enforcing height limits on stacked pallets in a warehouse?
A) To maximize storage efficiency
B) To prevent falling object hazards
C) To comply with fire safety regulations
D) To reduce worker lifting injuries
B) To prevent falling object hazards - Excessive stacking increases the risk of collapses and falling objects.
When performing overhead lifts, why is it necessary to coordinate with other activities?
A) To avoid distractions among workers
B) To prevent additional hazards from nearby tasks
C) To ensure only authorized personnel are on-site
D) To improve overall project efficiency
B) To prevent additional hazards from nearby tasks - Overlapping activities can introduce unexpected risks.
What is the required force a hard hat must withstand to meet ANSI Type I standards?
A) 500 lbs
B) 1,000 lbs
C) 2,200 lbs
D) 4,000 lbs
C) 2,200 lbs - ANSI Type I hard hats must withstand an impact force of 2,200 lbs.
When parking a vehicle on a job site, what is the best way to prevent it from becoming a rolling object hazard?
A) Engage the parking brake and park on flat ground
B) Leave it in neutral with the wheels turned
C) Park facing downhill with minimal braking force
D) Secure the vehicle using straps and chains
A) Engage the parking brake and park on flat ground - This prevents unintended movement.
What is the biggest risk associated with uncontrolled swinging objects on a job site?
A) Noise levels increase significantly
B) Objects may strike workers outside the intended work zone
C) Equipment damage is more likely than injuries
D) Swinging objects only pose a threat in high winds
B) Objects may strike workers outside the intended work zone - Uncontrolled movement can create unpredictable hazards.
Why should struck-by hazards be discussed during safety talks?
A) To ensure compliance with safety inspections
B) To reinforce awareness and prevention strategies
C) To assign blame for past incidents
D) To review OSHA’s history of fines and citations
B) To reinforce awareness and prevention strategies - Regular discussions help workers recognize and avoid hazards.
How often should the suspension system in a hard hat be replaced to ensure proper protection?
A) Every 6 months
B) Every year
C) Every 2 years
D) Only when visible wear is detected
B) Every year - Regular replacement ensures continued effectiveness against impact.
