CHST PRACTICE EXAM QUESTIONS AND
DETAILED SOLUTIONS 2026
▶ What is fall protection? Answer: The process, equipment, and methods
used to protect a worker once a fall has occurred.
▶ The top edge height of a guardrail should be _________ in. above the
walking/working surface. Answer: 42 +/- 3
▶ What are some common hazards associated with hot work? Answer: -
Health hazards (air contaminants from welding operations [iron oxide, zinc,
beryllium, copper], burns, burns to the eyes from flashes)
-Physical hazards (tripping from hoses)
-fires and explosions (igniting gases, improper storage)
▶ What are some controls for the hazards created when performing hot
work? Answer: Protect or remove fire hazards in the area, confine heat,
sparks, and slag, fire extinguishing equipment available, ventilation
▶ What are some common electrical hazards? Answer: Exposed electrical
parts, overhead power lines, inadequate wiring, defective or damaged
cords and wires, improper use of flexible cords, improper grounding,
overloaded circuits
▶ What are some controls utilized for electrical hazards? Answer:
Training, planning, gfci's, fuses, circuit breakers, lockout tagout
▶ What are some common hazards associated with excavations? Answer:
Weight (nearby vehicles/equipment), vibration, underground utilities, water
and soil erosion.
▶ What is a surcharge load? Answer: The spoils pile and the equipment
being too close to the vertical walls of the trench.
, ▶ What are some common controls used to mitigate excavation hazards?
Answer: Sloping, shoring, shields, rpe designed protective systems, soil
classification.
▶ What are some common hazards associated with working at heights?
Answer: slipping, unsafe access, lack of fall protection, scaffold collapse,
bad planking, unguarded edges,
▶ What are some controls to mitigate hazards when working at heights?
Answer: Fall prevention equipment, guardrails, positioning device system,
warning line systems, controlled access zone, safety monitoring system,
personal fall arrest system, safety net system
▶ What are some common hazards associated with working in confined
spaces? Answer: Hazardous atmosphere, engulfment, trapped,
asphyxiated
▶ What are some controls to mitigate the hazards associated with confined
spaces? Answer: Isolation, entry supervisor, atmospheric monitoring,
rescue service/equipment
▶ What are some common struck by hazards? Answer: Falling tools,
debris, or material. moving machinery, crane
▶ What are some controls to mitigate struck by hazards? Answer:
Barricade area below where overhead work is being performed. Signs.
Safety net. Tool belt lanyards. Barricade crane operation area
▶ What are some common caught-in or caught-between hazards?
Answer: Unguarded machinery, caught between a vehicle and a moving
object, caught between two objects, caught in a piece of equipment or
machinery
▶ What are some common controls to mitigate caught-between hazards?
Answer: Properly guarded machinery, barricades, train workers, lock out
tagout
▶ What are some common hazards associated with hoisting and rigging?
Answer: improper use of tagline, use of equip near energized lines,
defective equipment, loads swung or suspended overhead
DETAILED SOLUTIONS 2026
▶ What is fall protection? Answer: The process, equipment, and methods
used to protect a worker once a fall has occurred.
▶ The top edge height of a guardrail should be _________ in. above the
walking/working surface. Answer: 42 +/- 3
▶ What are some common hazards associated with hot work? Answer: -
Health hazards (air contaminants from welding operations [iron oxide, zinc,
beryllium, copper], burns, burns to the eyes from flashes)
-Physical hazards (tripping from hoses)
-fires and explosions (igniting gases, improper storage)
▶ What are some controls for the hazards created when performing hot
work? Answer: Protect or remove fire hazards in the area, confine heat,
sparks, and slag, fire extinguishing equipment available, ventilation
▶ What are some common electrical hazards? Answer: Exposed electrical
parts, overhead power lines, inadequate wiring, defective or damaged
cords and wires, improper use of flexible cords, improper grounding,
overloaded circuits
▶ What are some controls utilized for electrical hazards? Answer:
Training, planning, gfci's, fuses, circuit breakers, lockout tagout
▶ What are some common hazards associated with excavations? Answer:
Weight (nearby vehicles/equipment), vibration, underground utilities, water
and soil erosion.
▶ What is a surcharge load? Answer: The spoils pile and the equipment
being too close to the vertical walls of the trench.
, ▶ What are some common controls used to mitigate excavation hazards?
Answer: Sloping, shoring, shields, rpe designed protective systems, soil
classification.
▶ What are some common hazards associated with working at heights?
Answer: slipping, unsafe access, lack of fall protection, scaffold collapse,
bad planking, unguarded edges,
▶ What are some controls to mitigate hazards when working at heights?
Answer: Fall prevention equipment, guardrails, positioning device system,
warning line systems, controlled access zone, safety monitoring system,
personal fall arrest system, safety net system
▶ What are some common hazards associated with working in confined
spaces? Answer: Hazardous atmosphere, engulfment, trapped,
asphyxiated
▶ What are some controls to mitigate the hazards associated with confined
spaces? Answer: Isolation, entry supervisor, atmospheric monitoring,
rescue service/equipment
▶ What are some common struck by hazards? Answer: Falling tools,
debris, or material. moving machinery, crane
▶ What are some controls to mitigate struck by hazards? Answer:
Barricade area below where overhead work is being performed. Signs.
Safety net. Tool belt lanyards. Barricade crane operation area
▶ What are some common caught-in or caught-between hazards?
Answer: Unguarded machinery, caught between a vehicle and a moving
object, caught between two objects, caught in a piece of equipment or
machinery
▶ What are some common controls to mitigate caught-between hazards?
Answer: Properly guarded machinery, barricades, train workers, lock out
tagout
▶ What are some common hazards associated with hoisting and rigging?
Answer: improper use of tagline, use of equip near energized lines,
defective equipment, loads swung or suspended overhead
