Lattice Boom Crawler Crane Exam Questions Marking Scheme New Update (A+ Pass)
On a lattice boom crawler crane, the main boom length is measured from the . - Answers -Center of the boom heel pins to the center of the boom tip sheave.
What is the main purpose of mid point suspension pendants?...
Lattice Boom Crawler Crane Exam
Questions Marking Scheme New
Update (A+ Pass)
On a lattice boom crawler crane, the main boom length is measured from the . -
Answers -Center of the boom heel pins to the center of the boom tip sheave.
What is the main purpose of mid point suspension pendants? - Answers -To absorb the
shock that comes with dynamic loading.
The main purpose of a gantry or a mast on a crane is: - Answers -To increase the
crane's leverage on the boom.
What effect does having the crawlers retracted have on a crawler crane with long
boom? - Answers -Increase the probability of tipping.
When using a mobile crane on a barge, the crane's load capacity chart shall be -
Answers -Replaced by a list chart
Blocking can be placed under the ends of tracks to - Answers -Increase the crane's
stability when operating over the front or back.
A crawler crane is based on ________ stability of static load. - Answers -75%
What quadrant produces the least amount of ground pressure on a lattice crawler -
Answers -Side
When a crawler crane is on a barge, the list chart must be provided by the - Answers -
Manufacturer
When operating a crawler crane, the ground pressure will always be highest over the -
Answers -Corner
Unless working in loose soft soil, a crawler crane should always travel ____ on pick and
carry operations. - Answers -Towards the load.
Why use mats of cribbing? - Answers -To reduce ground pressure.
Mats are usually _____ to hold together. - Answers -Bolted
A crawler crane traveling forward is defined as traveling in the direction of - Answers -
The idler
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