MOBILE CRANE NCCER FINAL EXAM 2025/2026 BANK COMPLETE,
DETAILED AND VERIFIED QUESTIONS WITH 100% CORRECT
ANSWERS ||GRADED A+||
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? - ANSWER -To be reduced
How does the operator verify the LMs boom length or load radius
reading? - 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: - 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? - ANSWER -3
In a range diagram boom length and angle can be used to
determine: - ANSWER -Load radius
When making a multiple crane lift it is important for the operator to
understand that - ANSWER -the weight may increase if the other
crane lands the load first
Most crane manufacturers reduce the load capacity for duty-cycle
operations because - ANSWER -side loading forces may occur
The proper way to calibrate a boom angle indicator is: - ANSWER
-using a level, raise the boom to horizontal and set the indicator at
0 degrees
, If setting up the crane by a ditch or an excavation, you should
stay at least what distance from the edge? - ANSWER -1 1/2
times the depth of the excavation
When using cable or nylon spreaders it is important to remember :
- ANSWER -the lower the spreader angle the greater the tension
Backward stability is tested with - ANSWER -Basic boom at
maximum angle with no load
If the rated capacity of the crane is below the solid line or outside
the shaded area or has an asterisk next to it this means the
capacity is based on - ANSWER -Tipping
When determining the "gross load" the best method is: -
ANSWER -Get an accurate load weight and add the rigging
By order of strength which is correct - ANSWER -Basket, Vertical,
Choker
Primary purpose for a roster sheave or auxiliary boom point
sheave is to: - ANSWER -Separate the hoist line
When the number of layers of rope on a drum increase the : -
ANSWER -Allowable line pull decreases
What is the minimum allowable distance from the crane and
power lines under 50kV? - ANSWER -10'
Eccentric main boom tip reeving casues - ANSWER -twisting of
the boom
How many randomly broken wires must there be to remove a
running wire rope from service? - ANSWER -6
DETAILED AND VERIFIED QUESTIONS WITH 100% CORRECT
ANSWERS ||GRADED A+||
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? - ANSWER -To be reduced
How does the operator verify the LMs boom length or load radius
reading? - 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: - 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? - ANSWER -3
In a range diagram boom length and angle can be used to
determine: - ANSWER -Load radius
When making a multiple crane lift it is important for the operator to
understand that - ANSWER -the weight may increase if the other
crane lands the load first
Most crane manufacturers reduce the load capacity for duty-cycle
operations because - ANSWER -side loading forces may occur
The proper way to calibrate a boom angle indicator is: - ANSWER
-using a level, raise the boom to horizontal and set the indicator at
0 degrees
, If setting up the crane by a ditch or an excavation, you should
stay at least what distance from the edge? - ANSWER -1 1/2
times the depth of the excavation
When using cable or nylon spreaders it is important to remember :
- ANSWER -the lower the spreader angle the greater the tension
Backward stability is tested with - ANSWER -Basic boom at
maximum angle with no load
If the rated capacity of the crane is below the solid line or outside
the shaded area or has an asterisk next to it this means the
capacity is based on - ANSWER -Tipping
When determining the "gross load" the best method is: -
ANSWER -Get an accurate load weight and add the rigging
By order of strength which is correct - ANSWER -Basket, Vertical,
Choker
Primary purpose for a roster sheave or auxiliary boom point
sheave is to: - ANSWER -Separate the hoist line
When the number of layers of rope on a drum increase the : -
ANSWER -Allowable line pull decreases
What is the minimum allowable distance from the crane and
power lines under 50kV? - ANSWER -10'
Eccentric main boom tip reeving casues - ANSWER -twisting of
the boom
How many randomly broken wires must there be to remove a
running wire rope from service? - ANSWER -6
