NCCCO Final Test Questions & Answers
(LATEST UPDATE 2024)CORRECT 100%
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.
, How does the use of outriggers increase the tipping capacity of a crane? -
ANSWER By moving the tipping axis further from the center of gravity of the crane
Many load charts for cranes state that the area of least stability is over the side.
What statement explains this the best? - ANSWER The distance between the
crane's center of gravity and the tipping axis is smallest in that quadrant.
List two examples of outrigger use in which the crane's leverage on the load is
reduced. - ANSWER Outriggers not fully extended, tires not off ground
According to OSHA 29 CFR 1910.180, how accurate must a load weight be if it is in
the structural portion of the load chart? - ANSWER Plus of minus 10%
Based on OSHA and ASME standards, which of the following conditions are
required for blocking or cribbing? - ANSWER • Blocking/Cribbing must provide
100% support for each float,
• Must be large enough in area² to prevent sinking,
• Must be strong enough to prevent crushing, bending, or shear failure.
According to OSHA, when can an operator leave his seat with a suspended load in
the air? - ANSWER Almost never (and the exception requires that four conditions
be met)
The ASME standard requires operators to pass four exams and to demonstrate
knowledge in four areas.
(Exam and Knowledge areas, four each) - ANSWER Exam Areas:
• Written exam
(LATEST UPDATE 2024)CORRECT 100%
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.
, How does the use of outriggers increase the tipping capacity of a crane? -
ANSWER By moving the tipping axis further from the center of gravity of the crane
Many load charts for cranes state that the area of least stability is over the side.
What statement explains this the best? - ANSWER The distance between the
crane's center of gravity and the tipping axis is smallest in that quadrant.
List two examples of outrigger use in which the crane's leverage on the load is
reduced. - ANSWER Outriggers not fully extended, tires not off ground
According to OSHA 29 CFR 1910.180, how accurate must a load weight be if it is in
the structural portion of the load chart? - ANSWER Plus of minus 10%
Based on OSHA and ASME standards, which of the following conditions are
required for blocking or cribbing? - ANSWER • Blocking/Cribbing must provide
100% support for each float,
• Must be large enough in area² to prevent sinking,
• Must be strong enough to prevent crushing, bending, or shear failure.
According to OSHA, when can an operator leave his seat with a suspended load in
the air? - ANSWER Almost never (and the exception requires that four conditions
be met)
The ASME standard requires operators to pass four exams and to demonstrate
knowledge in four areas.
(Exam and Knowledge areas, four each) - ANSWER Exam Areas:
• Written exam
