NCCCO Pick and Carry Operations 4

Question 1

When performing a pick and carry operation over soft or uneven ground, the operator should:

Accepted Answer

Reduce the load and travel speed, and use mats or cribbing if needed

Answer

Soft or uneven ground increases tipping risk; reducing load and speed, and using mats or cribbing, improves stability.

Question 2

The term 'tipping load' in pick and carry operations refers to:

Accepted Answer

The load at which the crane will begin to tip, used as the basis for rated capacity

Answer

Tipping load is the load at which the crane actually begins to tip, and rated capacities are a percentage of this value.

Question 3

During pick and carry operations, what effect does extending the boom length have on crane stability?

Accepted Answer

It decreases stability by increasing the load radius and boom weight

Answer

Extending boom length increases the load radius and adds boom weight at a greater moment arm, both of which reduce stability.

Question 4

Which of the following conditions would require the operator to STOP a pick and carry move immediately?

Accepted Answer

Any of the above

Answer

Any of these conditions—load swing, capacity warning, or spotter signal—requires immediate cessation of travel to assess and correct the situation.

Question 5

For a pick and carry crane rated at 40 tons stationary, the travel capacity is typically:

Accepted Answer

Less than the stationary capacity

Answer

Travel (pick and carry) capacity is always less than stationary capacity due to the additional dynamic forces introduced by movement.

NCCCO (National Commission for the Certification of Crane Operators) Practice Test