NCCCO Core Exam Practice Questions And Accurate

NCCCO Core Exam Practice Questions And Accurate Answers -

For what purpose is Placing Mats or Cribbing under outrigger Floats?

• Raise the Tires off the ground
• Distribute the force over a larger area
• Allow the float to be Level with Surface
• Raise the operator's cab for better vision. - Answer B.) Distribute the force over a

larger area.

Where is the best location for leveling a Crane?

• Carrier
• Upperworks
• Cab
• Carbody - Answer B) Upperworks

The operator should check, before leveling a mobile crane on outriggers, that

• weight of the crane is on all the tires
• There is blocking under the outrigger beams
• There is no weight of the crane bearing on any tires
• There is weight only bearing on some tires - Answer C) There is no weight of the

crane bearing on any tires

Operating A mobile crane with a long boom, on uneven ground, what support condition should be considered?

• Blocking under the outrigger berms
• Keeping a 75 Degree angle between cylinder rod and pad 1 / 3

• Keeping a 90 Degree angle between cylinder rod and pad
• Blocking under the front bumper weight Answer C) Keeping a 90 Degree angle

between cylinder rod and pad

Where can blocking (Cribbing) be placed under outrigger beams on mobile cranes?

• Extending Beams
• Increasing Capacity
• Improving Stability
• Never Approved - Answer D) Never Approved

Mobiles Cranes should be level within what percent of Grade?

• 3%
• 2%
• 5%
• 1% - Answer D) 1%

Timber Crane mats work best when they are:

• Bolted Together
• Nailed Together
• Wired Together
• Left Loose - Answer A) Bolted together

When the crane arrives on the job site in the crane, the operator should immediately

assess the condition of the:

• Crane setup location
• Access Roads
• Parking Lot
• Headache Ball - Answer B) Access Roads 2 / 3

The following would NOT be a good surface on which to assemble or set up a mobile

crane:

• Above Compacted Fill
• Above Highway Asphalt
• Above Underground Vaults
• Above Highway Concrete - Answer C) Above Underground Vaults

Each Outrigger pad and its blocking must be sufficient to support?

• 85% of the load Chart
• The total weight of the crane and its load
• The total weight of the crane and its boom
• 75% of the load chart - Answer B)The total weight of the crane and its load

How does high wind affects a mobile crane with a long boom

• Decrease load line capacity
• Requires you to slip the swing brake
• Introduces side load onto the boom
• Has no effect on overall crane capacity - Answer C) Introduces side load onto the

boom

When should the outrigger beams should be less than fully extended?

• The load Chart indicates that this is allowed
• There is not enough space to extend the beam
• The crane is working over the front
• the main boom is fully retracted - Answer A) The load chart indicates that this is

allowed

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