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NCCCO Lattice Boom Crawler Crane Exam
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NCCCO Lattice Boom Crawler Crane Exam
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NCCCO Lattice Boom Crawler CraneExam- Solved
A crawler crane is based on ________ stability of static load. - ANSWER-75%
A crawler crane traveling forward is defined as traveling in the direction of - ANSWER-
The idler
A pin-connected lattice boom is being dismantled. After connecting the equalizer (bridle)
to the connecting lugs on the boom, which boom connecting pins should be removed
first - ANSWER-Lower connection pins, located at the head of the equalizer
According to OSHA 1926.1431 personnel platforms lifts should not be made with wind
in excess of - ANSWER-20 MPH
After the crane has been checked out and before crane lift operations begin the crew
should: - ANSWER-Have a pre-lift meeting
Blocking can be placed under the ends of tracks to: - ANSWER-Increase the crane's
stability when operating over the front or back
Boom Assembly - ANSWER-Always install upper pins first
By order of hitch strength, which is the correct answer - ANSWER-Basket, vertical,
choker
During assembly where should you attach slings to lift boom sections - ANSWER-End
Fittings
During disassembly of a long boom, the hog lines are connected at the maximum
cantilever point and the boom is slightly lifted off the ground. Which pins are to be
removed next - ANSWER-The bottom pins ahead of the cantilever points
Extended Crawlers Will - ANSWER-Increase over side capacities
How does high wind effect cranes with a long boom - ANSWER-It introduces side load
onto the boom
How many broken wires in one strand must there be to remove a running wire rope from
service - ANSWER-3
How many random broken wires must there be to remove a running wire rope from
service - ANSWER-6
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