1
NCCCO CORE EXAM NEWEST VERSION -2025/2026- 100+
QUESTIONS AND VERIFIED ANSWERS 100% CORRECT
GUARANTEED SUCCESS
When lifting loads on tires, mobile cranes are rated at what percentage of tipping?
75%
How does the effective weight of a slowed extension relate to the actual weight of
the extension?
Higher than the actual weight.
When load radius is between radii values, the operator must use the:
longer radius
Why should only approved attachments or extra counterweights provided by the
manufacturer be placed on the rear of the crane?
They could cause a backward stability problem.
Type 1 rotation resistant hoist wire rope has a design factor of:
5 to 1
How many randomly distributed broken wires in rotation- resistant hoist wire rope
are considered for replacement?
2 broken wires in 6 rope diameters
The term net capacity is best defined by which of the terms listed below?
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?
, 2
Manufacturer
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:
increases
Abruptly stopping a rapid swing on a long-boom mobile crane will produce what
major effect?
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:
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?
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?
Decreases stability.
Backward stability of a mobile crane is tested in which configuration listed below?
Basic boom at minimum angle with no load
Deflection of the boom while operating a mobile crane will increase?
Load Radius (Swings out)
A sudden start or stop of the hoisting function while operating a mobile crane can
produce a:
dynamic load
Before lifting an occupied personnel platform on a job site, which of the following
applies?
NCCCO CORE EXAM NEWEST VERSION -2025/2026- 100+
QUESTIONS AND VERIFIED ANSWERS 100% CORRECT
GUARANTEED SUCCESS
When lifting loads on tires, mobile cranes are rated at what percentage of tipping?
75%
How does the effective weight of a slowed extension relate to the actual weight of
the extension?
Higher than the actual weight.
When load radius is between radii values, the operator must use the:
longer radius
Why should only approved attachments or extra counterweights provided by the
manufacturer be placed on the rear of the crane?
They could cause a backward stability problem.
Type 1 rotation resistant hoist wire rope has a design factor of:
5 to 1
How many randomly distributed broken wires in rotation- resistant hoist wire rope
are considered for replacement?
2 broken wires in 6 rope diameters
The term net capacity is best defined by which of the terms listed below?
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?
, 2
Manufacturer
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:
increases
Abruptly stopping a rapid swing on a long-boom mobile crane will produce what
major effect?
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:
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?
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?
Decreases stability.
Backward stability of a mobile crane is tested in which configuration listed below?
Basic boom at minimum angle with no load
Deflection of the boom while operating a mobile crane will increase?
Load Radius (Swings out)
A sudden start or stop of the hoisting function while operating a mobile crane can
produce a:
dynamic load
Before lifting an occupied personnel platform on a job site, which of the following
applies?
