NCCCO OSHA Crane Regulations 29 CFR 1926 4 — Questions and Answers
Question 1: Under 29 CFR 1926.1412, which condition requires a crane to be immediately removed from service?
- A cracked load hook with a throat opening increased more than 15% from original dimension (Correct answer)
- Minor surface corrosion on the boom
- A missing decal on the counterweight
- Slightly worn rubber grips on the control handles
Correct answer: A cracked load hook with a throat opening increased more than 15% from original dimension
1926.1412(e)(1) requires removal from service when the hook throat opening has increased more than 15% from the original dimension, indicating dangerous deformation.
Question 2: According to 29 CFR 1926.1432, what is the primary purpose of the crane's load moment indicator (LMI)?
- To calculate the exact weight of the load
- To warn the operator when approaching the crane's rated capacity (Correct answer)
- To automatically stop the crane when overloaded
- To display wind speed at the boom tip
Correct answer: To warn the operator when approaching the crane's rated capacity
An LMI is designed to warn the operator as the crane approaches its rated capacity, helping prevent overload conditions.
Question 3: Under 29 CFR 1926.1422, what action is required when a crane is traveling with a suspended load?
- The load must be set down before any travel
- The employer must evaluate the travel path for hazards and the load must be controlled (Correct answer)
- A flagman must walk beside the crane at all times
- The load must be reduced to 50% of rated capacity
Correct answer: The employer must evaluate the travel path for hazards and the load must be controlled
1926.1422 requires the employer to ensure the travel path is assessed for hazards and the load is controlled during crane travel with a suspended load.
Question 4: 29 CFR 1926.1430 covers operator training. Which of the following individuals is qualified to evaluate an operator's knowledge and skills for certification purposes?
- Any licensed engineer
- A qualified evaluator who meets the criteria in the standard (Correct answer)
- The crane rental company's dispatcher
- The general contractor's project manager
Correct answer: A qualified evaluator who meets the criteria in the standard
1926.1430 specifies that operator qualification evaluations must be conducted by a qualified evaluator with the knowledge, skills, and experience to assess competency.
Question 5: According to 29 CFR 1926.1416(c), which of the following items must be inspected by the operator before each shift?
- Hydraulic oil filter condition and load cell calibration
- Control mechanisms, safety devices, and any visible structural damage (Correct answer)
- Wire rope diameter with calipers and documentation
- Boom angle indicator calibration against surveyor's reference
Correct answer: Control mechanisms, safety devices, and any visible structural damage
The pre-shift inspection under 1926.1416(c) requires operators to check control mechanisms, safety devices, and visible structural components for defects.
Question 6: Under 29 CFR 1926.1423, what is the minimum required safe access feature for a crane cab elevated above grade?
- A rope ladder secured at the top
- A personnel platform with fall protection
- A ladder, stairway, or ramp that complies with applicable standards (Correct answer)
- Three points of contact must be maintained during climbing
Correct answer: A ladder, stairway, or ramp that complies with applicable standards
1926.1423 requires that access to elevated crane cabs be provided via a ladder, stairway, or ramp that meets applicable safety standards.
Question 7: When an employer uses a crane on a multi-employer worksite, 29 CFR 1926.1400 establishes that which party has the duty to comply with operator certification and qualification requirements?
- Only the crane owner
- Only the general contractor
- The employer whose employees operate the crane (Correct answer)
- OSHA has sole enforcement responsibility
Correct answer: The employer whose employees operate the crane
Under 1926.1400, the employer whose employees operate the crane is responsible for ensuring those operators meet certification and qualification requirements.
NCCCO OSHA Crane Regulations 29 CFR 1926 4
Under 29 CFR 1926.1412, which condition requires a crane to be immediately removed from service?