NCCCO CORE EXAM QUESTIONS AND CORRECT

NCCCO CORE EXAM QUESTIONS AND CORRECT

ANSWERS ALREADY GRADED A+ NEWEST

UPDATE (REVISED)

What was the result of boom deflection be  Increased Boom radius

When a crane is out of level by 1° it will lose the most capacity at what configuration  Long boom minimum radius

What is the purpose of using a spreader beam  Support long hard to control loads

Which of the following actions is most likely to cause two blocking  Telescoping the boom out

When is it safe to handle loads under powerlines  The load know where any part of the crane can come closer than regulations allow

When working your power lines tag lines and slings should be constructed of  Probably propylene or polyethylene and webbing because they offer a fair insulating properties 1 / 4

When reading a load chart the listed capacity has an Asterix next to it this means  The capacities are based on the cranes structural competence

Pick can be made with the intermediate outriggers  If there is a load chart for intermediate Outrigger work

The main boom angle minus the gym offset would equal  Jib angle to the ground

You can use the range diagram to determine the  Radius of unloaded boom

Cranes on our acres are based on what percentage of stability

 85%

Cranes on crawlers are based on what percentage of stability

 75%

If a crayon is two blocked what functions should the anti-two block prevention system let you operate  Boom up hoist down telescope in

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Of the following conditions what condition LMI not warn you of  Out of level

When operating a crane of a capacity of 25 tons or less on a barge the maximum list or trim is

 5°

When operating a crane over 25 tons on a barge the maximum list or trim is

 7°

When operating a crane on a barge the crane must be  Secured to the barge

When using a four legged bridle the capacity is calculated using  Three legs

On a standing wire rope broken wires Adam and connection means the rope must be replaced  Two

Line pull is  The amount of weight a drum will hoist for a given layer

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Backward stability on a mobile crane can become an issue when the crane is working  Over the side at a minimum radius

Rotation resistant wire rope requires a higher safety factor because  Internal damage occurs

Timber mats work best when they are  Bolted together

Blocking under floats shall be  Sufficient to support the crane and the load

When operating a crane with a long boom on uneven ground you should  Block under the pad and keep a 90° angle between the cylinder rod and pad

When booming down a rough terrain crane and extending out Riggers from the cab you should  Post a signal person

One swing a suspended load on any crane with crawlers the most ground pressure will be exerted  Over the corner

A luffing jib on a conventional or hydraulic crane will

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