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MOBILE CRANE NCCER 2025, CRANE OPERATOR
EXAM, NCCER 100 QUESTIONS AND ANSWERS,
RIGGING AND LIFTING, CRANE SAFETY TEST,
EQUIPMENT INSPECTION, VERIFIED NCCER
ANSWERS
If the crane's jib is offset 5 degrees as opposed to an original 15 degrees and
the boom angle remains constant you would expect the load radius to do
what? - CORRECT ANSWER✔✔ To be reduced
How does the operator verify the LMs boom length or load radius reading?
- CORRECT ANSWER✔✔ accutal measurements
If the rated capacity of the crane is above the solid line or within the
shaded areas or has an asterisk next to it this means the capacity is based
on: - CORRECT ANSWER✔✔ 85% tipping
How many broken wires must be present in one strand of one lay for
running wire rope to be removed from service? - CORRECT ANSWER✔✔ 3
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In a range diagram boom length and angle can be used to determine: -
CORRECT ANSWER✔✔ Load radius
When making a multiple crane lift it is important for the operator to
understand that - CORRECT ANSWER✔✔ the weight may increase if the
other crane lands the load first
What is the Safety Factor required when using non-rotating wire rope and
lifting personnel in a manbasket? - CORRECT ANSWER✔✔ 10
According to ANSI B30.5, personnel platform lifts should not be made with
wind in excess of? - CORRECT ANSWER✔✔ 20 mph
What is the minimum design factor required for a right regular lay main,
boom or auxiliary hoist rope? - CORRECT ANSWER✔✔ 3.5
Most cranes manufacturers reduce load capacity for duty-cycle operations
because: - CORRECT ANSWER✔✔ Side loading forces may occur
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Backward stability of a crane is tested with: - CORRECT ANSWER✔✔ Basic
boom at maximum angle with no load
When using load/capacity charts, what does the term "jib angle to ground"
refer to? - CORRECT ANSWER✔✔ Main boom angle minus the jibs offset
How often should all running ropes in service be visually inspected? -
CORRECT ANSWER✔✔ Once each working day
Which end fitting has the highest efficiency rating - CORRECT ANSWER✔✔
Swaged Sockets
Which one of the following wire ropes should not be used in multi-part
reeving because it rapidly deteriorates, usually internally with repeated
bending? - CORRECT ANSWER✔✔ 1x7
For a truck crane to maintain a margin of safety against tipping backwards: -
CORRECT ANSWER✔✔ Weight on lift side of carrier must not be less than
15% of total crane weight.
MOBILE CRANE NCCER 2025, CRANE OPERATOR
EXAM, NCCER 100 QUESTIONS AND ANSWERS,
RIGGING AND LIFTING, CRANE SAFETY TEST,
EQUIPMENT INSPECTION, VERIFIED NCCER
ANSWERS
If the crane's jib is offset 5 degrees as opposed to an original 15 degrees and
the boom angle remains constant you would expect the load radius to do
what? - CORRECT ANSWER✔✔ To be reduced
How does the operator verify the LMs boom length or load radius reading?
- CORRECT ANSWER✔✔ accutal measurements
If the rated capacity of the crane is above the solid line or within the
shaded areas or has an asterisk next to it this means the capacity is based
on: - CORRECT ANSWER✔✔ 85% tipping
How many broken wires must be present in one strand of one lay for
running wire rope to be removed from service? - CORRECT ANSWER✔✔ 3
,2|Page
In a range diagram boom length and angle can be used to determine: -
CORRECT ANSWER✔✔ Load radius
When making a multiple crane lift it is important for the operator to
understand that - CORRECT ANSWER✔✔ the weight may increase if the
other crane lands the load first
What is the Safety Factor required when using non-rotating wire rope and
lifting personnel in a manbasket? - CORRECT ANSWER✔✔ 10
According to ANSI B30.5, personnel platform lifts should not be made with
wind in excess of? - CORRECT ANSWER✔✔ 20 mph
What is the minimum design factor required for a right regular lay main,
boom or auxiliary hoist rope? - CORRECT ANSWER✔✔ 3.5
Most cranes manufacturers reduce load capacity for duty-cycle operations
because: - CORRECT ANSWER✔✔ Side loading forces may occur
, 3|Page
Backward stability of a crane is tested with: - CORRECT ANSWER✔✔ Basic
boom at maximum angle with no load
When using load/capacity charts, what does the term "jib angle to ground"
refer to? - CORRECT ANSWER✔✔ Main boom angle minus the jibs offset
How often should all running ropes in service be visually inspected? -
CORRECT ANSWER✔✔ Once each working day
Which end fitting has the highest efficiency rating - CORRECT ANSWER✔✔
Swaged Sockets
Which one of the following wire ropes should not be used in multi-part
reeving because it rapidly deteriorates, usually internally with repeated
bending? - CORRECT ANSWER✔✔ 1x7
For a truck crane to maintain a margin of safety against tipping backwards: -
CORRECT ANSWER✔✔ Weight on lift side of carrier must not be less than
15% of total crane weight.
