NCCCO Service Truck Crane Operator 4

Question 1

What is the maximum rated capacity for most service truck cranes (knuckle boom or telescopic)?

Accepted Answer

Typically 3-14 tons depending on configuration, much less than mobile cranes

Answer

100 tons

Answer

50 tons minimum

Answer

Same as full-size mobile cranes

Question 2

What is unique about the outrigger requirements for service truck cranes?

Accepted Answer

Outriggers must be fully extended AND the truck must be on firm, level ground — partial extension drastically reduces capacity

Answer

They don't need outriggers

Answer

Outriggers are optional for loads under 2 tons

Answer

Only rear outriggers are needed

Question 3

When operating a service truck crane near the rear of the truck, what special consideration applies?

Accepted Answer

Capacity over the rear may be different from over the side due to the truck's stability geometry

Answer

Rear operations are always the most stable

Answer

Only lift over the rear when parked uphill

Answer

Never operate over the rear of the truck

Question 4

What CDL requirement may apply to service truck crane operators?

Accepted Answer

Depending on truck GVWR, a CDL may be required to drive the truck on public roads

Answer

No CDL ever required

Answer

CDL is only for operators over 21

Answer

CDL replaces crane certification

Question 5

What is the most common cause of service truck crane accidents?

Accepted Answer

Overloading beyond rated capacity, often due to using incorrect load chart or not accounting for outrigger configuration

Answer

Engine failure

Answer

Tire blowouts

Answer

Electrical problems

Question 6

A service truck crane is being used to set a rooftop HVAC unit. What is the primary concern?

Accepted Answer

The load radius increases as the unit is lifted higher and moved over the building edge, potentially exceeding capacity

Answer

Noise from the unit

Answer

The HVAC unit might be damaged

Answer

Weather conditions for HVAC installation