Mobile Crane NCCER Study Guide Questions And
Answers 2025
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
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
Answers 2025
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
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
