NCCCO CORE FINAL EXAM NEWEST ACTUAL EXAM
COMPLETE 200 QUESTIONS AND CORRECT
DETAILED ANSWERS||VERIFIED EXAM!!! (VERIFIED
ANSWERS) |ALREADY GRADED A+||NEWEST EXAM!!!
When may blocking (cribbing) be placed under outrigger
beams on mobile cranes? - ANSWER-Never approved
Mobile cranes should be level to within what percent of
grade? - ANSWER-1%
Timber crane mats work best when they are - ANSWER-
Bolted together
When arriving in the crane at the job site, the operator
should first determine the condition of - ANSWER-access
roads
What surface listed below would NOT be a good location
for assembly or setup of a mobile crane? - ANSWER-
Above underground vaults
Each outrigger pad and its blocking should be sufficient to
support? - ANSWER-The total weight of the crane and its
load
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How does high wind affect a mobile crane with a long
boom? - ANSWER-Introduces side load onto the boom
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
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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.
When determining the position to a mobile crane should
be left in over night, when high winds in the forecast the
operator should: - ANSWER-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? - ANSWER-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? - ANSWER-Decreases stability.