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NCCCO CORE EXAM
NCCCO CORE EXAM
NCCCO Core Exam (Latest Update / ) Test Review Questions & Answers | Grade A | 100% Correct.
On a mobile crane, how many broken wires are permitted at the end connection of a pendent before it must be taken out of service? - ANS 1
Type 1 rotation resistant hoist wire rope has a design factor of: - ANS 5 to 1
How many randomly distributed broken wires in rotation- resistant hoist wire rope are considered for replacement? - ANS 2 broken wires in 6 rope diameters
The term net capacity is best defined by which of the terms listed below? - ANS Gross capacity minus capacity deductions
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NCCCO CORE EXAM
NCCCO CORE EXAM
Mobile cranes that are set up on barges, shall have a list chart provided by which of the entities listed below? - ANS Manufacturer
When lifting loads on tires, mobile cranes are rated at what percentage of tipping? - ANS 75%
How does the effective weight of a slowed extension relate to the actual weight of the extension? - ANS Higher than the actual weight.
When load radius is between radii values, the operator must use the: - ANS
longer radius
Why should only approved attachments or extra counterweights provided by the manufacturer be placed on the rear of the crane? - ANS They could cause a backward stability problem.
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NCCCO CORE EXAM
NCCCO CORE EXAM
A mobile crane's jib is offset 15º versus its original 0º offset, but the boom
angle remains unchanged. In this situation, the load radius: - ANS
increases
Abruptly stopping a rapid swing on a long-boom mobile crane will produce what major effect? - ANS Collapsing the boom.
When determining the position to a mobile crane should be left in over night,
when high winds in the forecast the operator should: - ANS Follow the
manufacturers recommendations.
If a mobile crane is NOT set-up level and the operator swings the load from the high side to the low side, what effect will that have on the radius? - ANS The radius increase.
Increasing the distance from the crane's center of gravity to the tipping axis will have what effect on the mobile crane? - ANS Decreases stability.
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