NCCER Crane Maintenance, Inspection & Equipment Setup 3

Question 1

What condition in a wire rope requires immediate removal from service according to ASME B30.2?

Accepted Answer

Six randomly distributed broken wires in one rope lay

Answer

ASME B30.2 requires wire rope removal when six randomly distributed broken wires are found in one rope lay, as this indicates severe structural degradation.

Question 2

During a monthly crane inspection, what documentation must be completed?

Accepted Answer

A written record signed by the inspecting qualified person

Answer

Monthly inspections require a written record that identifies the crane, inspection date, items checked, deficiencies found, and the signature of the qualified person who performed the inspection.

Question 3

What is the maximum allowable wear on a crane hook before it must be replaced?

Accepted Answer

15% reduction in the original cross-sectional area of the hook

Answer

Per ASME B30.10, a crane hook must be replaced when there is 15% reduction in the original cross-sectional area due to wear.

Question 4

When inspecting a crawler crane track system, what component should be measured for wear?

Accepted Answer

Sprocket teeth, track pins, bushings, and rail wear

Answer

A thorough crawler track inspection includes measuring sprocket tooth wear, track pin and bushing wear, and rail wear to ensure safe and efficient crane travel and operation.

Question 5

What is the purpose of a load moment indicator (LMI) on a crane?

Accepted Answer

To warn the operator when approaching the rated load limit

Answer

An LMI warns the operator when crane operations are approaching the rated load limit based on the combination of load weight and moment arm, helping prevent overloads.

(NCCER Crane) National Center for Construction Education and Research Crane Certification Practice Test

(NCCER Crane) National Center for Construction Education and Research Crane Certification Practice Test

NCCER Crane Maintenance, Inspection & Equipment Setup 3