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NCCCO CORE Exam With 100% Correct And Verified Answers
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NCCCO CORE Exam With 100% Correct And Verified Answers
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NCCCO CORE Exam With 100% CorrectAnd Verified Answers
Before leveling a mobile crane on outriggers, an
operator should ensure: - Correct 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? - Correct Answer-Keeping 90 degree
angle between cylinder rod and pad
What is the primary purpose fir a rooster sheave or
auxiliary boom point sheave? - Correct 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? - Correct
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? - Correct
Answer-1
Type 1 rotation resistant hoist wire rope has a
design factor of: - Correct Answer-5 to 1
How many randomly distributed broken wires in
rotation- resistant hoist wire rope are considered
for replacement? - Correct Answer-2 broken wires
in 6 rope diameters
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, The term net capacity is best defined by which of
the terms listed below? - Correct 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? - Correct Answer-Manufacturer
When lifting loads on tires, mobile cranes are rated
at what percentage of tipping? - Correct Answer-
75%
How does the effective weight of a slowed extension
relate to the actual weight of the extension? -
Correct Answer-Higher than the actual weight.
When load radius is between radii values, the
operator must use the: - Correct Answer-longer
radius
Why should only approved attachments or extra
counterweights provided by the manufacturer be
placed on the rear of the crane? - Correct 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: - Correct Answer-
increases
Abruptly stopping a rapid swing on a long-boom
mobile crane will produce what major effect? -
Correct Answer-Collapsing the boom.
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