NCCCO EXAM CORE QUESTIONS
WITH COMPLETE ANSWERS
The lifting capacities listed in the load chart assume that: - ANSWER -The lift is to be
performed under ideal conditions
A "rough terrain" crane set up on outriggers that is based on 85% tipping should have
the tires: - ANSWER -Off the supporting surface
Load charts are based on stationary loads, which are also known as: - ANSWER -Static
loads
The capacity in a mobile crane's load chart are based on either structural limits or -
ANSWER -Stability
The values listed in the manufacture's load chart show: - ANSWER -Rated capacities
Net capacity is: - ANSWER -Manufactures load ratings minus capacity deductions
When determining the "gross load" the best method is: - ANSWER -Get an accurate
load weight and add the rigging
The weights of load handling devices, such as load blocks, spreader bars, and slings
are considered: - ANSWER -Part of the load
Gross capacity is 10,300 Ibs total deductions are 7,622 lbs. What is the net capacity? -
ANSWER -2,678 lbs.
Boom length is measured from the: - ANSWER -Center of the heel pin(s) to the center
of the boom tip sheaves
The boom angle indicator indicates the booms angle to the: - ANSWER -Horizontal
Load radius is defined as: the horizontal distance from the centerline of rotation line
with: - ANSWER -The rated load suspended
The term "Superstructure or Upper works" refers to the area of the crane: - ANSWER -
Above the swing circle
A crane must be level within _______% for the load chart ratings to be valid? -
ANSWER -1%
On what principle is crane stability based? - ANSWER -Leverage
, What would be the effect of moving the tipping axis closer to the cranes center of
gravity? - ANSWER -Reduced stability
Which of the following matches the appropriate load chart to a particular crane? -
ANSWER -Serial number
A durable rating chart with legible letters and figures shall be provided with each crane
accessible to: - ANSWER -The operator at the controls
You are lifting a load directly under the hook. As you put tension on it, the load lifts away
from crane. What caused the increased in load radius as should have been placed? -
ANSWER -Boom deflection
A crane that is set up properly should have the tires off the supporting surface and
should be: - ANSWER -Sufficient to support the crane and the load
When a boom extension considered to be inits stowed position, it is: - ANSWER -
Pinned to the boom base section
Crawler cranes produce the least amount of ground pressure is over the: - ANSWER -
Side
What is the best source of information for determining boom tip height? - ANSWER -
Working range diagram
What is the purpose of a work area diagram (chart)? - ANSWER -To identify operational
quadrants
Ona telescopic boom truck with outriggers properly positioned, the working area chart
will indicate "over front" area is: - ANSWER -Determined by the crane manufacturer
When the load radius falls between capacities listed in the load chart use the gross
capacity for the - ANSWER -Longer radius
When the boom angle falls between the capacities listed in the load chart use the gross
capacity for the - ANSWER -Lower boom angle
When load charts are between the values listed in the load chart, the value that must be
used is the: - ANSWER -Lower at a longer radius
A load moment indicator (LMI) is a computer installed on cranes designed to: provide
the operator with information regarding the boom length, boom angle, boom tip height,
working radius, rated load and a total calculated weight being lifted by the crane. The
LMI also warns an operator when an overloading situation is about to occur. - ANSWER
-True
WITH COMPLETE ANSWERS
The lifting capacities listed in the load chart assume that: - ANSWER -The lift is to be
performed under ideal conditions
A "rough terrain" crane set up on outriggers that is based on 85% tipping should have
the tires: - ANSWER -Off the supporting surface
Load charts are based on stationary loads, which are also known as: - ANSWER -Static
loads
The capacity in a mobile crane's load chart are based on either structural limits or -
ANSWER -Stability
The values listed in the manufacture's load chart show: - ANSWER -Rated capacities
Net capacity is: - ANSWER -Manufactures load ratings minus capacity deductions
When determining the "gross load" the best method is: - ANSWER -Get an accurate
load weight and add the rigging
The weights of load handling devices, such as load blocks, spreader bars, and slings
are considered: - ANSWER -Part of the load
Gross capacity is 10,300 Ibs total deductions are 7,622 lbs. What is the net capacity? -
ANSWER -2,678 lbs.
Boom length is measured from the: - ANSWER -Center of the heel pin(s) to the center
of the boom tip sheaves
The boom angle indicator indicates the booms angle to the: - ANSWER -Horizontal
Load radius is defined as: the horizontal distance from the centerline of rotation line
with: - ANSWER -The rated load suspended
The term "Superstructure or Upper works" refers to the area of the crane: - ANSWER -
Above the swing circle
A crane must be level within _______% for the load chart ratings to be valid? -
ANSWER -1%
On what principle is crane stability based? - ANSWER -Leverage
, What would be the effect of moving the tipping axis closer to the cranes center of
gravity? - ANSWER -Reduced stability
Which of the following matches the appropriate load chart to a particular crane? -
ANSWER -Serial number
A durable rating chart with legible letters and figures shall be provided with each crane
accessible to: - ANSWER -The operator at the controls
You are lifting a load directly under the hook. As you put tension on it, the load lifts away
from crane. What caused the increased in load radius as should have been placed? -
ANSWER -Boom deflection
A crane that is set up properly should have the tires off the supporting surface and
should be: - ANSWER -Sufficient to support the crane and the load
When a boom extension considered to be inits stowed position, it is: - ANSWER -
Pinned to the boom base section
Crawler cranes produce the least amount of ground pressure is over the: - ANSWER -
Side
What is the best source of information for determining boom tip height? - ANSWER -
Working range diagram
What is the purpose of a work area diagram (chart)? - ANSWER -To identify operational
quadrants
Ona telescopic boom truck with outriggers properly positioned, the working area chart
will indicate "over front" area is: - ANSWER -Determined by the crane manufacturer
When the load radius falls between capacities listed in the load chart use the gross
capacity for the - ANSWER -Longer radius
When the boom angle falls between the capacities listed in the load chart use the gross
capacity for the - ANSWER -Lower boom angle
When load charts are between the values listed in the load chart, the value that must be
used is the: - ANSWER -Lower at a longer radius
A load moment indicator (LMI) is a computer installed on cranes designed to: provide
the operator with information regarding the boom length, boom angle, boom tip height,
working radius, rated load and a total calculated weight being lifted by the crane. The
LMI also warns an operator when an overloading situation is about to occur. - ANSWER
-True
