Heavy Equipment and Struck-By Hazards practice questions for the CHST exam
CHST5 Domain 1: Hazard and Risk Identification and Control (K1.7 Struck-by; K1.8 Mechanized equipment). 2 free questions below. Every answer quotes and links the regulation paragraph it rests on.
- 29 CFR 1926.600: Equipment.
- 29 CFR 1926.601: Motor vehicles.
- 29 CFR 1926.602: Material handling equipment.
Text pulled from the eCFR, current as of 2026-10-14.
During the lunch break, an operator parks a wheel loader on the sloped side of a laydown area. The bucket is fully lowered, the controls are in neutral, the engine is off, and the parking brake is set. The site supervisor checks the machine against the construction equipment requirements. What, if anything, must still be done to comply?
Show answer and source
Answer: A. Chock the wheels, because equipment parked on an incline needs chocks in addition to the parking brake
The standard requires equipment parked on an incline to have its wheels chocked and the parking brake set, so the brake alone is not enough on this slope. Raising and cribbing the bucket is wrong because the standard calls for blades and buckets to be fully lowered or blocked when not in use, and this one is already fully lowered.
“Whenever the equipment is parked, the parking brake shall be set. Equipment parked on inclines shall have the wheels chocked and the parking brake set.”
Two rough-terrain forklifts are used in unison to lift a 9,000 lb precast panel. Truck A has a rated capacity of 6,000 lb and Truck B has a rated capacity of 4,000 lb. The rigging arrangement will put 5,000 lb of the panel's weight on Truck A and 4,000 lb on Truck B. The foreman says the lift is acceptable because the combined capacity of the two trucks (10,000 lb) exceeds the panel's weight. What is the correct assessment under the standard?
Show answer and source
Answer: B. The lift is acceptable because the share carried by each truck does not exceed that truck's own rated capacity.
The standard limits the proportion of the load carried by any one truck to that truck's capacity. Truck A carries 5,000 lb against 6,000 lb, and Truck B carries 4,000 lb against 4,000 lb, so neither is exceeded. Comparing combined capacity to total weight is not the test, and the standard does not require an equal split.
“If a load is lifted by two or more trucks working in unison, the proportion of the total load carried by any one truck shall not exceed its capacity.”
Unlock every CHST question with timed practice, the AI tutor and full-length mocks. Or start with the free diagnostic.
Related topics
Original practice questions, not real exam items. PassCited is not affiliated with or endorsed by BCSP.