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NCCCO CORE FINAL EXAM NEWEST 2024-
2025 ACTUAL EXAM COMPLETE 200
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A +
Deflection of the boom while operating a mobile crane will increase? - CORRECT ANSWER -Load Radius (Swings out)
A sudden start or stop of the hoisting function while operating a
mobile crane can produce a: - CORRECT ANSWER -dynamic
load
Before lifting an occupied personnel platform on a job site, which of the following applies? - CORRECT ANSWER -Use 50% of rated capacity, Trial lift to anticipated weight, Ensure rigging dedicated to platform only.
According to OSHA 1926. 1431, while hoisting a personnel platform, what weather condition listed below will promptly discontinue the operation? - CORRECT ANSWER -Dangerous
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If working near overhead power line and using a tag line, which type of rope is least conductive to electricity? - CORRECT ANSWER-Polypropylene
When working near power lines with the mobile crane, where does OSHA require caution stickers be installed on all equipment? - CORRECT ANSWER -At operators station and 2 on the outside of the equipment.
According to OSHA table T, what is the minimum clearance for 133kV power lines? - CORRECT ANSWER -10ft
According to OSHA's table T, what clearance should a mobile crane IN TRANSIT keep while going under 445kV lines? - CORRECT ANSWER -16ft
According to OSHA when is it safe to hoist loads with a mobile crane below energized power lines? - CORRECT ANSWER - When the fully extended boom can't reach the prohibited zone.
According to OSHA 1926. 1411, when you encounter power lines with a voltage of 44kV and the crane is TRAVELING, according to Table T, what is the minimum required clearance? - CORRECT ANSWER -6ft
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According to OSHA, mobile crane load block hooks must not
have a twist in excess of: - CORRECT ANSWER -0
According to OSHA, mobile crane load blocks hooks must not
have a throat opening in excess of: - CORRECT ANSWER -5%
When correctly installing U-bolt type wire rope clips, the U
portion of the clip shall be on: - CORRECT ANSWER -the dead
or short end
What is the angle between the top of the load and the sling leg referred to in sling load charts? - CORRECT ANSWER - Horizontal sling angle
When installing a wedge socket, it must be attached with the
load line pulling in a straight line from the: - CORRECT
ANSWER-pin
What is the purpose of placing mats or cribbing under outrigger floats? - CORRECT ANSWER -Distribute the force over a larger area
Where is the best location for leveling a crane? - CORRECT ANSWER-Upperworks 3 / 4
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When may blocking (cribbing) be placed under outrigger beams on mobile cranes? - CORRECT ANSWER -Never approved
Mobile cranes should be level to within what percent of grade? -
CORRECT ANSWER -1%
Timber crane mats work best when they are - CORRECT ANSWER-Bolted together
When arriving in the crane at the job site, the operator should first determine the condition of - CORRECT ANSWER -access roads
What surface listed below would NOT be a good location for assembly or setup of a mobile crane? - CORRECT ANSWER - Above underground vaults
Each outrigger pad and its blocking should be sufficient to support? - CORRECT ANSWER -The total weight of the crane and its load
How does high wind affect a mobile crane with a long boom? - CORRECT ANSWER -Introduces side load onto the boom
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