Service Truck Crane Operator Flashcards
6 cards from real NCCCO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Service Truck Crane Operator flashcards as text
A service truck crane (knuckle boom crane) is mounted on a truck bed. Before lifting, which setup step is most critical for safe operation?
Answer: Deploy and level the outriggers on stable ground and verify all outrigger pads are fully seated
Outrigger deployment and leveling is mandatory before any lift on a service truck crane. Operating without outriggers, or on improperly seated outrigger pads, is the leading cause of truck crane tip-overs.
Under OSHA 1926 Subpart CC, which definition applies to a service truck crane with a rated capacity of 2,000 pounds or more?
Answer: It is covered equipment requiring operators to be certified or qualified per OSHA 1926.1427
OSHA 1926 Subpart CC applies to all cranes and derricks with a rated capacity over 2,000 lb used in construction, including truck-mounted service cranes (knuckle booms).
A service truck crane operator notices the truck is on a slight slope and the outrigger on the downhill side is not fully contacting the ground. What should the operator do?
Answer: Reposition the truck on level ground or pack the downhill outrigger with cribbing until all outriggers bear evenly before lifting
All outriggers must be in firm contact with stable ground before lifting. An outrigger not bearing load provides no stability benefit and the crane operates as if that outrigger is absent, significantly reducing tipping resistance.
What is the maximum permissible wire rope drum fleet angle for a service truck crane's hoisting drum?
Answer: 1.5 to 2 degrees for smooth drums and up to 4 degrees for grooved drums, per manufacturer specifications
Fleet angle — the angle between the wire rope and the drum centerline — must stay within manufacturer limits to prevent rope crossover damage and uneven winding. Typical limits are 1.5-2 degrees for smooth drums and up to 4 degrees for grooved drums.
A service truck crane is equipped with a load moment indicator (LMI). The LMI alarm sounds and a red light illuminates during a pick. What must the operator do?
Answer: Stop adding load immediately, lower the load to safe ground, and assess whether the pick exceeded rated capacity
An LMI alarm indicates the crane is approaching or has exceeded rated capacity for the current configuration. The operator must stop, lower the load, and determine whether to reduce the load, adjust the configuration, or refuse the lift.
Which document is required to be in the cab of a service truck crane and must be legible at all times during operations?
Answer: Load chart and operator's manual for the specific crane make and model
OSHA 1926.1417 and ASME B30.5 require that the rated capacity charts (load charts) and operator's manual for the specific crane be kept in the cab and be legible. These are the operator's primary reference during every lift.