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NCCCO LATTICE BOOM GENERAL KNOWLEDGE ACCURATE CURRENTLY TESTING REAL EXAM QUESTIONS WITH DETAILED ANSWERS | A+ GRADE ASSURED // BRAND NEW$10.99
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NCCCO LATTICE BOOM GENERAL KNOWLEDGE ACCURATE CURRENTLY TESTING REAL EXAM QUESTIONS WITH DETAILED ANSWERS | A+ GRADE ASSURED // BRAND NEW
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Course
NCCCO Crane
Institution
NCCCO Crane
The lattice boom is designed to take winds of up to 20 mph. from the side plus a full rated load, plus a direct side load equal to what percent of the rated load? - ANS 2%
The part of the load chart governed by stability is based on what percentage of capacity while a crawler crane is working ...
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GENERAL KNOWLEDGE
ACCURATE CURRENTLY
lo
TESTING REAL EXAM
yc
QUESTIONS WITH
DETAILED ANSWERS | A+
ud
GRADE ASSURED // BRAND
NEW
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, The lattice boom is designed to take winds of up to 20 mph. from the side plus a full rated load,
plus a direct side load equal to what percent of the rated load? - ANS 2%
The part of the load chart governed by stability is based on what percentage of capacity while a
crawler crane is working over the side quadrant? - ANS A. 75%
The most unstable working quadrant for a crawler crane is the; - ANS Side
ck
What type of capacity is listed on a crane load chart? - ANS Static
If the manufacture of a particular crane does not specifically permit pick and carry operations
what procedure must be followed during this operation? - ANS Don't make any pick and carry
lifts
lo
What is the main purpose of a jib/extension? - ANS To extend reach higher or up and over
When the number of layers of rope on a drum increase the line pull___________. - ANS
Decreases
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When handling boom sections, the best place for slings to be attached is; - ANS At the pin
connections at the ends of the top chords
Placing timber blocking under the tips of the tracks on a crawler crane will; - ANS Make the
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crane more stable
What is the major effect of stopping suddenly a rapid swing while operating long boom crane? -
ANS Action may cause the crane boom collapse and/or overturn the crane
According to B30.10 hooks shall be removed from service when the throat opening exceeds
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_____ the original throat opening. - ANS 5%
On a crawler crane ground bearing pressure is greatest where? - ANS Over the corner
During disassembly of a long boom, the pendant lines are connected at the maximum cantilever
point and the boom is slightly lifted off the ground, which boom connection pins are to be
removed next? - ANS The bottom pins ahead of the cantilever point
Most crane manufactures require the load chart capacities must be reduced when wind speed
reaches; - ANS 20 mph
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