NCCCO Mobile Crane Exam – 163 Questions | Actual
Exam Questions & 100% Correct Answers | Latest Update
2026 | Certification Exam Prep
1. For the Grove, what load ratings are you to use when the boom length falls
between the lengths listed in the load chart?
The next shortest boom length
The next longest or the next shortest boom length, whichever is the
lower capacity
The next longest boom length
A length estimated between the lengths in the chart
2. When is it permitted to side load a crane boom?
Only using 75% of gross capacity
Never
Only with a freely suspended load
Only using 50% of gross capacity
3. What is the primary reason a crane may be overloaded?
Using improper hand signals.
Failure to conduct a pre-operation inspection.
Exceeding the load capacity specified by the manufacturer.
Operating near power lines.
4. What standard outlines the minimal requirements for crane operator
qualifications?
, ANSI A10.5
OSHA 1926
ISO 9001
ASME B30.5
5. When can the operator of a crane set the crane up with less than fully
extended outriggers?
Never
When the operator does not have room to extend them
When the load chart allows
Whenever the operator feels safe
6. What is the minimum distance that crane outrigger pads should be placed
from a cellar wall when operating at ground floor level?
At least as far back as the depth of the wall below ground
At a distance at least half the depth of the cellar wall below ground
As close as possible to the wall
Anywhere, since the wall is unaffected by the weight of the crane
7. What is the correct position for the hook when preparing to lift a load with a
crane?
Slightly to the side you're planning to swing to
Slightly to the side opposite you plan to swing to
Directly above the load's center of gravity
Above the edge of the load closest to the crane
8. If an operator finds that essential controls are missing from the cab before
, starting crane operations, what should be the operator's immediate course of
action?
Attempt to operate the crane without the missing controls.
Wait until the end of the shift to address the issue.
Stop operations and report the issue to a supervisor.
Continue operations as long as the crane is functioning.
9. Describe the significance of maintaining the minimum clearance when
operating cranes near high voltage lines.
It is only a recommendation and not a requirement.
Maintaining minimum clearance is crucial to prevent electrical
hazards and ensure operator safety.
It allows for closer operation to increase efficiency.
It is irrelevant to crane operation safety.
10. What is the primary purpose of using tag lines during crane operations?
To signal the crane operator.
To control the load and prevent it from swinging.
To increase the load capacity.
To secure the crane to the ground.
11. If a crane operator is working near a high voltage line of 250 KV and the
minimum clearance is not maintained, what potential risks could arise?
Reduced visibility for the operator.
No risks, as the crane is designed to operate near power lines.
Improved operational efficiency due to closer proximity.
, Increased risk of electrical shock or electrocution to the operator
and crew.
12. In a scenario where a crane is lifting a large, unstable load in windy
conditions, how would the use of tag lines enhance safety?
Tag lines would allow for faster lifting operations.
Tag lines would increase the load's weight capacity.
Tag lines would provide additional control over the load, reducing
the risk of it swinging or tipping over.
Tag lines would eliminate the need for a spotter.
13. Describe how a crane operator uses a load chart during operations.
A crane operator uses the load chart to determine the best hand
signals to communicate with ground personnel.
A crane operator uses the load chart to ensure that the load being
lifted does not exceed the crane's capacity at the specific boom
angle and radius.
A crane operator uses the load chart to assess the weather
conditions for safe operation.
A crane operator uses the load chart to calculate the crane's fuel
efficiency.
14. In a scenario where two cranes are lifting a heavy load, what should be the
first step to ensure safety and compliance with regulations?
Use only visual signals without a communication plan.
Develop a comprehensive lift plan that outlines roles,
responsibilities, and communication methods.
Assign one operator to control both cranes.
Exam Questions & 100% Correct Answers | Latest Update
2026 | Certification Exam Prep
1. For the Grove, what load ratings are you to use when the boom length falls
between the lengths listed in the load chart?
The next shortest boom length
The next longest or the next shortest boom length, whichever is the
lower capacity
The next longest boom length
A length estimated between the lengths in the chart
2. When is it permitted to side load a crane boom?
Only using 75% of gross capacity
Never
Only with a freely suspended load
Only using 50% of gross capacity
3. What is the primary reason a crane may be overloaded?
Using improper hand signals.
Failure to conduct a pre-operation inspection.
Exceeding the load capacity specified by the manufacturer.
Operating near power lines.
4. What standard outlines the minimal requirements for crane operator
qualifications?
, ANSI A10.5
OSHA 1926
ISO 9001
ASME B30.5
5. When can the operator of a crane set the crane up with less than fully
extended outriggers?
Never
When the operator does not have room to extend them
When the load chart allows
Whenever the operator feels safe
6. What is the minimum distance that crane outrigger pads should be placed
from a cellar wall when operating at ground floor level?
At least as far back as the depth of the wall below ground
At a distance at least half the depth of the cellar wall below ground
As close as possible to the wall
Anywhere, since the wall is unaffected by the weight of the crane
7. What is the correct position for the hook when preparing to lift a load with a
crane?
Slightly to the side you're planning to swing to
Slightly to the side opposite you plan to swing to
Directly above the load's center of gravity
Above the edge of the load closest to the crane
8. If an operator finds that essential controls are missing from the cab before
, starting crane operations, what should be the operator's immediate course of
action?
Attempt to operate the crane without the missing controls.
Wait until the end of the shift to address the issue.
Stop operations and report the issue to a supervisor.
Continue operations as long as the crane is functioning.
9. Describe the significance of maintaining the minimum clearance when
operating cranes near high voltage lines.
It is only a recommendation and not a requirement.
Maintaining minimum clearance is crucial to prevent electrical
hazards and ensure operator safety.
It allows for closer operation to increase efficiency.
It is irrelevant to crane operation safety.
10. What is the primary purpose of using tag lines during crane operations?
To signal the crane operator.
To control the load and prevent it from swinging.
To increase the load capacity.
To secure the crane to the ground.
11. If a crane operator is working near a high voltage line of 250 KV and the
minimum clearance is not maintained, what potential risks could arise?
Reduced visibility for the operator.
No risks, as the crane is designed to operate near power lines.
Improved operational efficiency due to closer proximity.
, Increased risk of electrical shock or electrocution to the operator
and crew.
12. In a scenario where a crane is lifting a large, unstable load in windy
conditions, how would the use of tag lines enhance safety?
Tag lines would allow for faster lifting operations.
Tag lines would increase the load's weight capacity.
Tag lines would provide additional control over the load, reducing
the risk of it swinging or tipping over.
Tag lines would eliminate the need for a spotter.
13. Describe how a crane operator uses a load chart during operations.
A crane operator uses the load chart to determine the best hand
signals to communicate with ground personnel.
A crane operator uses the load chart to ensure that the load being
lifted does not exceed the crane's capacity at the specific boom
angle and radius.
A crane operator uses the load chart to assess the weather
conditions for safe operation.
A crane operator uses the load chart to calculate the crane's fuel
efficiency.
14. In a scenario where two cranes are lifting a heavy load, what should be the
first step to ensure safety and compliance with regulations?
Use only visual signals without a communication plan.
Develop a comprehensive lift plan that outlines roles,
responsibilities, and communication methods.
Assign one operator to control both cranes.
