1|Page
Mobile Crane NCCER 2025, crane operator exam,
NCCER 100 questions And answers, rigging and
lifting, crane safety test, equipment inspection,
verified NCCER answers
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
,2|Page
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
When working near power lines when is a signal person required?
......answer.....When crane moves within a booms length of power lines
When operating truck cranes what is the most unstable allowable quadrant
of operation? ......answer.....Side
,3|Page
Tipping capacities of locomotive cranes are based on what % of tipping?
......answer.....85%
Should the load be applied when determining the proper boom angle?
......answer.....YES
What type of rope is recommended for a tagline around powerlines
......answer.....Polypropylene
what does two beeps of the horn indicate to people in the area
......answer.....forward
Load radius is the distance from the center of gravity of the suspended load
to the: ......answer.....Center of rotation
, 4|Page
What is the purpose of using a boom extension? ......answer.....Increase
height
What do a jib and boom ext. have in common ......answer.....Increase height
What is the minimum design factor required for a right regular lay main
boom or auxiliary hoist rope?` ......answer.....3.5
How does the operator determine if the correct load chart is being used?
......answer.....Matching serial numbers
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
Mobile Crane NCCER 2025, crane operator exam,
NCCER 100 questions And answers, rigging and
lifting, crane safety test, equipment inspection,
verified NCCER answers
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
,2|Page
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
When working near power lines when is a signal person required?
......answer.....When crane moves within a booms length of power lines
When operating truck cranes what is the most unstable allowable quadrant
of operation? ......answer.....Side
,3|Page
Tipping capacities of locomotive cranes are based on what % of tipping?
......answer.....85%
Should the load be applied when determining the proper boom angle?
......answer.....YES
What type of rope is recommended for a tagline around powerlines
......answer.....Polypropylene
what does two beeps of the horn indicate to people in the area
......answer.....forward
Load radius is the distance from the center of gravity of the suspended load
to the: ......answer.....Center of rotation
, 4|Page
What is the purpose of using a boom extension? ......answer.....Increase
height
What do a jib and boom ext. have in common ......answer.....Increase height
What is the minimum design factor required for a right regular lay main
boom or auxiliary hoist rope?` ......answer.....3.5
How does the operator determine if the correct load chart is being used?
......answer.....Matching serial numbers
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
