Free NCCCO Mobile Crane Operator Test 3

Under which circumstance is a crack in the windshield of a crane cab okay?

As long as it is less than 6 inches long

As long as it causes no visible distortion that would interfere with safe operations

As long as the windshield is replaced on the next annual inspection

It is never okay

Correct! Wrong!

Unless the manufacturer states otherwise, what crane capacity chart is appropriate when a crane is set up with 3 of its 4 outriggers extended and the fourth is retracted?

On-rubber chart plus 20%

On-rubber chart

On-outrigger chart

On-outrigger chart minus 20%

Correct! Wrong!

According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane’s rated capacity?

75%

Correct! Wrong!

When is side loading of crane booms permitted?

So long as no jib is installed

Only with freely suspended loads

When the operator says it’s OK

Only when the outriggers are fully extended

Correct! Wrong!

What is indicated if an operator makes two audible signals when moving a crane?

He/she intends to back up

He/she intends to go ahead

He/she intends to stop

He/she intends to go ahead

Correct! Wrong!

According to ASME, what percentage of the manufacturer’s crane rating must not be exceeded if a load test is done on a repaired crane?

75%

110%

100%

85%

Correct! Wrong!

Where is the tipping axis of a crawler crane located?

It depends if the idler or sprocket are in line or offset from the track rollers

It is through the boom butt section

It is always at the centerline of the idler or sprocket

It is through the centerline of the crane cab

Correct! Wrong!

What should be done with materials placed under overhead energized power lines?

Not be lifted by crane

Be lifted as normal

Handled with extra care

Be dragged out

Correct! Wrong!

Where should the crane’s outrigger pads or tracks be placed when working at ground floor level near a cellar wall?

Anywhere, since the wall is unaffected by the weight of the crane

As close as possible to the wall

At a distance at least half the depth of the cellar wall below ground

At least as far back as the depth of the wall below ground

Correct! Wrong!

How should the wheels of a crane be positioned when it is set up for working on outriggers?

Just high enough off the ground to relieve the tires of crane weight

Firmly on the ground to support the crane

Just touching the ground

As high as possible off the ground

Correct! Wrong!

What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground?

It increases

It decreases by half

It decreases by a third

It remains the same

Correct! Wrong!

Free NCCCO Mobile Crane Operator Test 3

Under which circumstance is a crack in the windshield of a crane cab okay?

Unless the manufacturer states otherwise, what crane capacity chart is appropriate when a crane is set up with 3 of its 4 outriggers extended and the fourth is retracted?

According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane’s rated capacity?

When is side loading of crane booms permitted?

What is indicated if an operator makes two audible signals when moving a crane?

According to ASME, what percentage of the manufacturer’s crane rating must not be exceeded if a load test is done on a repaired crane?

Where is the tipping axis of a crawler crane located?

What should be done with materials placed under overhead energized power lines?

Where should the crane’s outrigger pads or tracks be placed when working at ground floor level near a cellar wall?

How should the wheels of a crane be positioned when it is set up for working on outriggers?

What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground?

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Under which circumstance is a crack in the windshield of a crane cab okay?

Unless the manufacturer states otherwise, what crane capacity chart is appropriate when a crane is set up with 3 of its 4 outriggers extended and the fourth is retracted?

According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane’s rated capacity?

When is side loading of crane booms permitted?

What is indicated if an operator makes two audible signals when moving a crane?

According to ASME, what percentage of the manufacturer’s crane rating must not be exceeded if a load test is done on a repaired crane?

Where is the tipping axis of a crawler crane located?

What should be done with materials placed under overhead energized power lines?

Where should the crane’s outrigger pads or tracks be placed when working at ground floor level near a cellar wall?

How should the wheels of a crane be positioned when it is set up for working on outriggers?

What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground?

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