NCCCO LATTICE BOOM CRAWLER

NCCCO LATTICE BOOM CRAWLER

CRANE EXAM QUESTIONS AND

ANSWERS 100% SOLVED 1 / 2

On a lattice boom crawler crane, the main boom length is measured from the: -

ANSWERSCenter of the boom heel pins to the center of the boom tip sheave What is the main purpose of mid point suspension pendants? - ANSWERSTo absorb shock that comes with dynamic loading

The main purpose of a gantry or a mast on a crane is: - ANSWERSTo increase the

crane's leverage on the boom What effect does having the crawlers retracted have on a crawler crane with a long boom - ANSWERSIncreases the probability of tipping When using a mobile crane on a barge, the crane's load capacity chart shall be - ANSWERSReplaced by a list chart Blocking can be placed under the ends of tracks to: - ANSWERSIncrease the crane's stability when operating over the front or back A crawler crane is based on ________ stability of static load. - ANSWERS75% What quadrant produces the least amount of ground pressure on a lattice crawler - ANSWERSSide When a crawler crane is on a barge, the list chart must be provided by the - ANSWERSManufacturer When operating a crawler crane, the ground pressure will always be highest over the - ANSWERSCorner Unless working in loos soft soil, a crawler crane should always travel _____ on pick and carry operations - ANSWERSTowards the load Why use mats of cribbing - ANSWERSTo reduce ground pressure Mats are usually _____ to hold together. - ANSWERSBolted A crawler crane traveling forward is defined as traveling in the direction of - ANSWERSThe idler When disassembling or assembling booms on lattice boom cranes, it is extremely important to - ANSWERSNever touch any pin on any boom section located between the pendant attachment points and the crane

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