NCCER Mobile Crane Exam 2025 | All Questions and Correct Answers |
Verified Answers | Graded A+ | Brand New Version!
When determining the "gross load" the best method is: - (CORRECT ANSWER)Get an accurate load
weight and add the rigging
By order of strength which is correct - (CORRECT ANSWER)Basket, Vertical, Choker
Primary purpose for a roster sheave or auxiliary boom point sheave is to: - (CORRECT ANSWER)Separate
the hoist line
When the number of layers of rope on a drum increase the : - (CORRECT ANSWER)Allowable line pull
decreases
What is the minimum allowable distance from the crane and power lines under 50kV? - (CORRECT
ANSWER)10'
Eccentric main boom tip reeving casues - (CORRECT ANSWER)twisting of the boom
How many randomly broken wires must there be to remove a running wire rope from service? -
(CORRECT ANSWER)6
When working near power lines when is a signal person required? - (CORRECT ANSWER)When crane
moves within a booms length of power lines
When operating truck cranes what is the most unstable allowable quadrant of operation? - (CORRECT
ANSWER)Side
Tipping capacities of locomotive cranes are based on what % of tipping? - (CORRECT ANSWER)85%
Should the load be applied when determining the proper boom angle? - (CORRECT ANSWER)YES
1
, What type of rope is recommended for a tagline around powerlines - (CORRECT ANSWER)Polypropylene
what does two beeps of the horn indicate to people in the area - (CORRECT ANSWER)forward
Load radius is the distance from the center of gravity of the suspended load to the: - (CORRECT
ANSWER)Center of rotation
What is the purpose of using a boom extension? - (CORRECT ANSWER)Increase height
What do a jib and boom ext. have in common - (CORRECT ANSWER)Increase height
What is the minimum design factor required for a right regular lay main boom or auxiliary hoist rope?` -
(CORRECT ANSWER)3.5
How does the operator determine if the correct load chart is being used? - (CORRECT 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? - (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
2
Verified Answers | Graded A+ | Brand New Version!
When determining the "gross load" the best method is: - (CORRECT ANSWER)Get an accurate load
weight and add the rigging
By order of strength which is correct - (CORRECT ANSWER)Basket, Vertical, Choker
Primary purpose for a roster sheave or auxiliary boom point sheave is to: - (CORRECT ANSWER)Separate
the hoist line
When the number of layers of rope on a drum increase the : - (CORRECT ANSWER)Allowable line pull
decreases
What is the minimum allowable distance from the crane and power lines under 50kV? - (CORRECT
ANSWER)10'
Eccentric main boom tip reeving casues - (CORRECT ANSWER)twisting of the boom
How many randomly broken wires must there be to remove a running wire rope from service? -
(CORRECT ANSWER)6
When working near power lines when is a signal person required? - (CORRECT ANSWER)When crane
moves within a booms length of power lines
When operating truck cranes what is the most unstable allowable quadrant of operation? - (CORRECT
ANSWER)Side
Tipping capacities of locomotive cranes are based on what % of tipping? - (CORRECT ANSWER)85%
Should the load be applied when determining the proper boom angle? - (CORRECT ANSWER)YES
1
, What type of rope is recommended for a tagline around powerlines - (CORRECT ANSWER)Polypropylene
what does two beeps of the horn indicate to people in the area - (CORRECT ANSWER)forward
Load radius is the distance from the center of gravity of the suspended load to the: - (CORRECT
ANSWER)Center of rotation
What is the purpose of using a boom extension? - (CORRECT ANSWER)Increase height
What do a jib and boom ext. have in common - (CORRECT ANSWER)Increase height
What is the minimum design factor required for a right regular lay main boom or auxiliary hoist rope?` -
(CORRECT ANSWER)3.5
How does the operator determine if the correct load chart is being used? - (CORRECT 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? - (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
2
