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NCCCO CORE Exam NEWEST WITH ACTUAL
QUESTIONS AND WELL DEFIENED ANSWERS
ALREADY GRADED A+
Before leveling a mobile crane on outriggers, an operator should ensure: -
ANSWER✔✔-there is no weight of the crane bearing on any tires
Operating a mobile crane with a long boom, on uneven ground, what support condition should be considered? - ANSWER✔✔-Keeping 90 degree angle between cylinder rod and pad
What is the primary purpose fir a rooster sheave or auxiliary boom point sheave? - ANSWER✔✔-Separate the boom hoist lines
How many randomly broken wires in a lay length must there be on a mobile cranes hoist line, before it should be removed from service? - ANSWER✔✔-6
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? - ANSWER✔✔-1
Type 1 rotation resistant hoist wire rope has a design factor of: - ANSWER✔✔-5 to 1
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How many randomly distributed broken wires in rotation- resistant hoist wire rope are considered for replacement? - ANSWER✔✔-2 broken wires in 6 rope diameters
The term net capacity is best defined by which of the terms listed below? - ANSWER✔✔-Gross capacity minus capacity deductions
Mobile cranes that are set up on barges, shall have a list chart provided by which of the entities listed below? - ANSWER✔✔-Manufacturer
When lifting loads on tires, mobile cranes are rated at what percentage of tipping? - ANSWER✔✔-75%
How does the effective weight of a slowed extension relate to the actual weight of the extension? - ANSWER✔✔-Higher than the actual weight.
When load radius is between radii values, the operator must use the: -
ANSWER✔✔-longer radius
Why should only approved attachments or extra counterweights provided by the manufacturer be placed on the rear of the crane? - ANSWER✔✔-They could cause a backward stability problem.
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: - ANSWER✔✔-
increases
Abruptly stopping a rapid swing on a long-boom mobile crane will produce what major effect? - ANSWER✔✔-Collapsing the boom.
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