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NCCCO CORE| 119 QUESTIONS AND ANSWERS (GRADED A) $11.99   Add to cart

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NCCCO CORE| 119 QUESTIONS AND ANSWERS (GRADED A)

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NCCCO CORE| 119 QUESTIONS AND ANSWERS (GRADED A)NCCCO CORE| 119 QUESTIONS AND ANSWERS (GRADED A)NCCCO CORE| 119 QUESTIONS AND ANSWERS (GRADED A)NCCCO CORE| 119 QUESTIONS AND ANSWERS (GRADED A) Before leveling a mobile crane on outriggers, an operator should ensure: - ANSWER - there is no weight of...

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  • September 24, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NCCCO CORE
  • NCCCO CORE
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NCCCO CORE| 119 QUESTIONS
AND ANSWERS (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


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.


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.


Backward stability of a mobile crane is tested in which configuration listed below? -
ANSWER - Basic boom at minimum angle with no load


Deflection of the boom while operating a mobile crane will increase? - ANSWER -
Load Radius (Swings out)

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