NCCCO Final Test 2024 Questions and Answers 100% Correct
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Course
Nccco
Institution
Nccco
NCCCO Final Test 2024 Questions and Answers 100% CorrectNCCCO Final Test 2024 Questions and Answers 100% CorrectNCCCO Final Test 2024 Questions and Answers 100% CorrectNCCCO Final Test 2024 Questions and Answers 100% CorrectAnswers 100% Correct
Which area do truck cranes without a 5th outrigger ...
NCCCO Final Test 2024 Questions
and Answers 100% Correct
Which area do truck cranes without a 5th outrigger generally have no lifting
capacity unless the manufacturer states otherwise? - ANSWER - The front
What is the definition of "operating radius?" - ANSWER - The distance from the
center of rotation of the crane to the center of gravity of the load
What applies to the capacities below the bold line shown on a load chart? - ANSWER
- They are based on the stability of the crane
In which quadrant are rough terrain crane capacities generally greater? - ANSWER -
Over the front
What percentage do most manufacturers requires a crane's load chart capacity to
be reduced by for duty cycle operations - such as high-volume concrete placement?
- ANSWER - 20%
From which two points should the boom be measured? - ANSWER - From the boom
hinge pins, to the center of the boom tip sheave
What is the preferred method of installing wire rope from a reel onto a hoist drum? -
ANSWER - Running the rope from the top of the reel, to the top of the drum.
Over which quadrant are truck crane capacities usually greater? - ANSWER - Over
the rear
According to OSHA, which accessible area of an operating crane must always be
barricaded? - ANSWER - The swing radius of the rear of the rotating superstructure
What is the OSHA regulation governing cranes in construction? - ANSWER -
1926.1400
, According to ASME, what percentage of the manufacturer's crane rating must not be
exceeded if a load test is done on a repaired crane? - ANSWER - 100%
Timber blocking placed under the tips of the tracks on a crawler crane will: -
ANSWER - Make the crane more stable
What is the primary purpose of placing blocking under the ends of the tracks on a
crawler crane? - ANSWER - To ensure that the tipping axis is the sprocket or idler,
rather than a track roller.
Suppose you are traveling a crawler crane with the drive trains to the rear, and you
need to turn right on hard, and level ground. What should you do? - ANSWER -
Travel the left track forward to minimize wear.
Where is the tipping axis of a crawler crane located? - ANSWER - It depends if the
idler or sprocket are in line or offset from the track rollers
What should be done with materials placed under overhead energized power lines? -
ANSWER - NOT be lifted by crane
What determines the amount of deduction required for an erected jib that is not
being used? - ANSWER - The effective weight of the jib
What happens to ground bearing pressure if you move a crawler crane from soft
ground to harder ground? - ANSWER - It increases
How should the wheels of a crane be positioned when it is set up for working on
outriggers? - ANSWER - Just high enough off the ground to relieve the tires of crane
weight
Where is the tipping axis of a crawler crane located? - ANSWER - It depends if the
idler or sprocket are in line or offset from the track rollers
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