NCCCO CORE EXAM 2023-2024 ACTUAL EXAM
170 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A
Definition of operating radius - ANSWER-Distance from center of
rotation to center of gravity of the load
Which Quadrant are rough terrain crane capacities greater -
ANSWER-Over the front
From which 2 points should the boom be measured - ANSWER-
Boom hinge pins to center of boom tip sheeve
Which quadrant are truck crane capacities greater - ANSWER-
Over the rear
Which accessible area of an operating crane must always be
barricaded - ANSWER-Swing radius of superstructure
When does OSHA permit hoisting personnel by crane - ANSWER-
When there is no less hazardous or practicable way
While hoisting personnel total load must not exceed what
percentage of crane capacity - ANSWER-50%
,NCCCO CORE EXAM 2023-2024 ACTUAL EXAM
170 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A
When is side loading of crane booms permitted - ANSWER-Only
with freely suspended loads
Placing timber blocking under tips of tracks on crawler crane
does what - ANSWER-More stability
According to ASME, what percentage of the manufacturers crane
rating must not be exceeded if a load test is done on a repaired
crane - ANSWER-100%
Where is the tipping axis of a crawler crane located - ANSWER-
Depends on idler or sprocket
What to do with materials under energized power lines -
ANSWER-Never be lifted by crane
Where should outrigger pads be placed when working at ground
floor level near a CELLAR WALL - ANSWER-At least as far back
as the depth of the wall below ground
What happens to ground bearing pressure if you move a crawler
crane from soft to hard ground - ANSWER-Stays the same
, NCCCO CORE EXAM 2023-2024 ACTUAL EXAM
170 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A
When may a swivel be used with rotation resistant wire rope -
ANSWER-If manufacture approves
What should you do on pick and carry operations - ANSWER-
Keep boom length as short as possible
What boom position would cause the greatest ground pressure
when lifting with crawler cranes - ANSWER-Over the corner
How many parts of line are required to hoist a 36,500 lb. load of
the maximum allowable line pull is 9,000 lbs - ANSWER-5
What determines the amount of deduction required for an
erected jib that is not being used - ANSWER-The effective weight
of the jib
What capacity should you use when the boom length of the crane
falls BETWEEN the lengths listed in the load chart - ANSWER-The
next longest or next shortest boom length, whichever is the lower
capacity.
What happens to the leverage of the lord on a crane as the boom
lowers - ANSWER-It increases
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