NCCCO Lattice Boom Crawler LBC Crane Exam

NCCCO Lattice Boom Crawler (LBC) Crane Exam Review Questions and Answers 100% Pass

On a lattice boom crawler crane, the length of the main boom is taken from the: - Answer Center of the boom heel pins to the center of the boom tip sheave

What is the major reason why mid point suspension pendants are used? - Answer To absorb shock that comes with dynamic loading

What is the main purpose of a gantry or a mast on a crane? - Answer To lengthen the crane's leverage on the boom

A crawler crane is set with a long boom and the crawlers are retracted - Answer The likelihood of tipping becomes higher

A mobile crane is utilized on a barge, the crane's load capacity chart shall be - Answer Replaced with a list chart

Blocking can be placed under the ends of tracks to: - Answer Increase the crane's stability when operating over the front or back

A crawler crane is based on ________ stability of static load. - Answer 75%

What quadrant produces the least amount of ground pressure on a lattice crawler - Answer Side

When a crawler crane is on a barge, the list chart must be provided by the - Answer Manufacturer

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When operating a crawler crane, the ground pressure will always be highest over the - Answer Corner

Unless working in loos soft soil, a crawler crane should always travel _____ on pick and carry operations - Answer Towards the load

Why use mats of cribbing - Answer To reduce ground pressure

Mats are usually _____ to hold together. - Answer Bolted

Traveling forward of a crawler crane means to travel in the direction of - Answer The idler

During boom assembling or disassembling, it is very important that - Answer Never touch any pin on any boom section located between the pendant attachment points and the crane

On a lattice boom crane, the device that automatically stops the boom when it nears the maximum angle is the - Answer Boom hoist kick out

When is it safe to handle loads under power lines - Answer The load nor any part of the crane can come closer than regulations allow

Manufacture specs only allow a certain amt of boom to be suspended out past the point of connection of the pendants during assembly or disasssembly of the boom. This length of boom is called the - Answer Cantilever Length

When installing a pin-connected lattice boom on a mobile crane, you should always - Answer Use the boom hoist pawl to hold the boom

When making a lift with a lattice boom crawler crane, ground pressure can be reduced

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