NCCCO Service Truck Crane Operator Test 1 4 — Questions and Answers
Question 1: Which OSHA regulation primarily governs service truck crane operations in general industry?
- 29 CFR 1910.179
- 29 CFR 1926.1400 (Correct answer)
- 29 CFR 1926.550
- 29 CFR 1910.184
Correct answer: 29 CFR 1926.1400
29 CFR 1926.1400 (Cranes and Derricks in Construction) is the primary OSHA standard covering crane operations including service truck cranes on construction sites.
Question 2: Before a critical lift is performed, what document must be prepared?
- A daily inspection log
- A written critical lift plan (Correct answer)
- A manufacturer's warranty certificate
- An OSHA Form 300 entry
Correct answer: A written critical lift plan
OSHA and ASME standards require a written critical lift plan for lifts exceeding 75% of the crane's rated capacity or other complex lift conditions.
Question 3: A service truck crane operator notices the wire rope has a kink. What is the correct action?
- Straighten the kink by hand and continue operations
- Remove the rope from service immediately (Correct answer)
- Reduce the load by 10% and continue
- Lubricate the kink and monitor it during the lift
Correct answer: Remove the rope from service immediately
A kinked wire rope is permanently damaged and must be removed from service because kinks severely reduce the rope's load-carrying capacity.
Question 4: When communicating with a signal person, the operator should respond to signals from:
- Any qualified worker on the job site
- Only the designated signal person, except for a stop signal (Correct answer)
- The rigger and the signal person jointly
- The site supervisor only
Correct answer: Only the designated signal person, except for a stop signal
The operator must respond only to the designated signal person, but must obey a stop signal from anyone regardless of who gives it.
Question 5: What is the safe working load (SWL) of a 1/2-inch Grade 80 alloy chain sling in a basket hitch at a 60-degree horizontal angle?
- Greater than its vertical rated load
- Equal to its vertical rated load
- Less than its vertical rated load (Correct answer)
- The same as a choker hitch configuration
Correct answer: Less than its vertical rated load
As the sling angle decreases from vertical, the effective load on each leg increases, reducing the SWL below the vertical rated capacity.
Question 6: What information is typically found on a crane's load chart that an operator must verify before any lift?
- The crane's engine oil pressure specification
- Boom length, working radius, and boom angle (Correct answer)
- The wire rope manufacturer's contact information
- The crane's fuel tank capacity
Correct answer: Boom length, working radius, and boom angle
Load charts specify rated capacities based on boom length, working radius, and boom angle, all of which the operator must determine before lifting.
Question 7: During a pick-and-carry operation with a service truck crane, what is the operator's primary responsibility?
- Maintaining maximum boom extension for better reach
- Ensuring the load does not exceed the capacity listed for pick-and-carry on the load chart (Correct answer)
- Traveling at normal road speed to minimize load swing
- Retracting all outriggers before moving
Correct answer: Ensuring the load does not exceed the capacity listed for pick-and-carry on the load chart
Pick-and-carry capacities on load charts are significantly lower than stationary capacities, and the operator must never exceed these reduced ratings.
NCCCO Service Truck Crane Operator Test 1 4
Which OSHA regulation primarily governs service truck crane operations in general industry?