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1 NCCCO Core Actual Exam Questions and Correct Answers .Which of the following is an accurate statement about luffing jibs? - ANSWER-It raises and lowers independent from the boom
What is the weakest quadrant of a boom truck? - ANSWER-Front
What effect would blocking up the ends of the tracks have on a crane? - ANSWER-It would increase capacity over the ends
The tipping axis of a crawler crane is? - ANSWER-It depends if the idler or sprocket are offset from track rollers
According to ASME B30.5 what percentage should not be exceeded on a mobile crane during a load test? - ANSWER-100%
From strongest to weakest put the following hitches in order - ANSWER-Basket, vertical, choker
Which of the following should synthetic slings not be used around? - ANSWER-Acid
How often should you inspect a running rope? - ANSWER-Daily
The radius on a crane chart refers to? - ANSWER-Center of rotation to center of gravity of the load or hook
What percentage is the manufacture rate of capacity of a mobile crane on outriggers? - ANSWER-85%
What percentage is the manufacture rated capacity of a rough terrain crane on rubber? - ANSWER-75% 1 / 3
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2 What is Lay length? - ANSWER-The distance required for a strand to make a complete revolution around the rope
What is one problem lubricating wire rope can cause? - ANSWER-Obstructed view when inspecting the rope
What would What would call for a running rope to be taken out of service? - ANSWER-Six randomly distributed broken wires and one Lay or three in one strand and one lay
Which of these is known as a standing rope? - ANSWER-Pendant line
If you are at a radius below the bold line on a load chart, which does that mean? - ANSWER-Tipping, stability
To lift personnel, he must have an anti-two block on the crane? - ANSWER-True
The personal platform must be proof tested to Of the platforms rated capacity - ANSWER- 125%
The crane must be D rated To lift personnel - ANSWER-50%
When lifting personnel, how should the rigging be a attached to the hook? - ANSWER-With master link
When using wire rope slings, the eye of the slings shall have? - ANSWER-Thimbles
The crane operator should respond to the stop signal from anyone - ANSWER-True
On a rough terrain crane what is the strongest quadrant? - ANSWER-Front
If an operator does not boom up to allow for a boom deflection, the load will? - ANSWER-Move away from the Crane 2 / 3
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3 Where should the boom be positioned when beginning a lift? - ANSWER-Directly over the center of gravity of the load
A crane should always be barricaded within? - ANSWER-The swing radius of the rear of the rotation superstructure counterweight
The crane must have a inspection performed both monthly and yearly. This information must be documented by the employer that conducts the inspection. - ANSWER-Periodic
Slings should always be marked with a capacity rate in tag. - ANSWER-True
The wire rope clip on a wedge socket Should always attached to the Of the Crane. - ANSWER-Dead end
It is possible for a crane to be overloaded with no signs of tipping. - ANSWER-True
In rotation resistant ropes if you have broken wires and six rope diameter or broken wires and 30 rope diameters, the rope must be removed from service. - ANSWER-2,4
In order to operate a mobile crane on a barge, you must have - ANSWER-List and trim capacity chart
When lifting a load out of the water, the load will be come When it breaks the surface - ANSWER-Heavier
What must be done when operating on a barge? - ANSWER-Attach the crane to the barge
Mobile crane is more stable when: - ANSWER-The cranes leverage is greater than the load leverage
As a crane tips the loads leverage - ANSWER-Increases
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