NCCCO Mobile Crane Operator Fundamentals

Question 1

What is the primary responsibility of a certified mobile crane operator under NCCCO standards before accepting a lift assignment?

Accepted Answer

Review the load chart, verify crane configuration, and assess site conditions to confirm the lift is within rated capacity

Answer

Sign the lift plan without independent verification if the rigger has already approved it

Answer

Rely solely on the signal person to assess whether the lift is safe

Answer

Proceed with the lift and monitor LMI alarms as the primary safety check

Question 2

When traveling with a mobile crane on a public road between job sites, what is required regarding the load?

Accepted Answer

The load must be removed; cranes should not travel on public roads with suspended loads

Answer

The operator may travel at highway speed if the boom is lowered to 20 degrees

Answer

The load can remain suspended if it does not exceed 50% of rated capacity

Answer

Travel with load is prohibited only on grades over 5%

Question 3

Ground bearing pressure is a critical factor in mobile crane setup. Which outrigger configuration produces the highest ground bearing pressure for a given load?

Accepted Answer

Outriggers retracted on tires, concentrating all load through the four tire contact patches

Answer

Outriggers fully extended with large outrigger pads

Answer

Outriggers half-extended with standard pads

Answer

Outriggers fully extended with no pads

Question 4

An operator receives a hand signal from the signal person that they do not recognize. What is the correct action?

Accepted Answer

Stop all crane motion and request clarification before resuming

Answer

Proceed slowly and watch the signal person's reaction to determine intent

Answer

Default to the 'lower boom' signal as the safest interpretation

Answer

Ask another worker on the ground to interpret the signal

Question 5

What does the term 'dynamic loading' refer to in mobile crane operations?

Accepted Answer

Loads that increase due to acceleration, deceleration, or sudden shock such as picking a load from a barge in waves

Answer

The static weight of the load plus the rigging

Answer

The rated capacity printed on the load chart

Answer

The weight of the counterweight during slewing

Question 6

Under OSHA 1926 Subpart CC, who is responsible for ensuring that the crane operator is certified or qualified for the equipment being operated?

Accepted Answer

The employer

Answer

The operator themselves through self-certification

Answer

The general contractor's site safety manager

Answer

OSHA directly through a permit system