NCCCO Core Questions and Answers

NCCCO Core Questions and Answers with Complete Solutions Graded A

The term "Superstructure or Upper works" refers to the area of the crane: Above the swing circle

A crane must be level within _______% for the load chart ratings to be valid?1%

On what principle is crane stability based?Leverage

What would be the effect of moving the tipping axis closer to the cranes center of gravity?Reduced stability

Which of the following matches the appropriate load chart to a particular crane?Serial number

A durable rating chart with legible letters and figures shall be provided with each crane accessible to: The operator at the controls

The lifting capacities listed in the load chart assume that: 1 / 3

The lift is to be performed under ideal conditions

A "rough terrain" crane set up on outriggers that is based on 85% tipping should have the tires: Off the supporting surface

Load charts are based on stationary loads, which are also known as:

Static loads

The capacity in a mobile crane's load chart are based on either structural limits or Stability

The values listed in the manufacture's load chart show:

Rated capacities

Net capacity is:

Manufactures load ratings minus capacity deductions

When determining the "gross load" the best method is:

Get an accurate load weight and add the rigging

The weights of load handling devices, such as load blocks, spreader bars, and slings are considered: Part of the load 2 / 3

Gross capacity is 10,300 Ibs total deductions are 7,622 lbs. What is the net capacity?2,678 lbs.

Boom length is measured from the:

Center of the heel pin(s) to the center of the boom tip sheaves

The boom angle indicator indicates the booms angle to the:

Horizontal

Load radius is defined as: the horizontal distance from the centerline of rotation line with: The rated load suspended

You are lifting a load directly under the hook. As you put tension on it, the load lifts away from crane.What caused the increased in load radius as should have been placed?Boom deflection

A crane that is set up properly should have the tires off the supporting surface and should be: Sufficient to support the crane and the load

When a boom extension considered to be inits stowed position, it is:

Pinned to the boom base section

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