NCCCO Lift Planning and Critical Lift Procedures 4

Question 1

What is the purpose of a pre-lift meeting before a critical lift?

Accepted Answer

To ensure all personnel understand the lift plan, signals, and emergency procedures

Answer

The pre-lift meeting ensures that all involved personnel are briefed on the plan, communication methods, and emergency procedures before the lift begins.

Question 2

Ground bearing pressure during lift planning is critical because:

Accepted Answer

Insufficient ground support can cause outriggers to sink, leading to crane overturn

Answer

If the ground cannot support the load imposed by outriggers, the crane can tip or overturn, making ground bearing pressure analysis essential.

Question 3

When planning a lift in wind conditions, the operator should consult the load chart because:

Accepted Answer

Wind creates additional side loading that can exceed the crane's structural limits

Answer

Wind imposes lateral forces on the load and crane structure, which can create side loading that exceeds rated capacities shown in the load chart.

Question 4

During a pick-and-carry operation in lift planning, the operator must verify:

Accepted Answer

That travel terrain is firm, level, and the load is within travel capacity ratings

Answer

Pick-and-carry operations require travel capacity ratings, which differ from static lift ratings, and the travel path must be firm and level.

Question 5

The deduction for the weight of the hook block, rigging, and auxiliary headache ball from the crane's rated capacity is called:

Accepted Answer

Rigging deduction

Answer

The rigging deduction accounts for the weight of all below-hook components that count against the crane's rated capacity.

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

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

NCCCO Lift Planning and Critical Lift Procedures 4