NCCCO Lattice Boom General Knowledge Exam Questions Complete Solutions Current Update (A+ Pass)
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NCCCO Lattice Boom General Knowledge
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NCCCO Lattice Boom General Knowledge
NCCCO Lattice Boom General Knowledge Exam Questions Complete Solutions Current Update (A+ Pass)
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? - Answers -2%
The part of the load...
NCCCO Lattice Boom General Knowledge
Exam Questions Complete Solutions
Current Update (A+ Pass)
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? - Answers -
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? - Answers -A. 75%
The most unstable working quadrant for a crawler crane is the; - Answers -Side
What type of capacity is listed on a crane load chart? - Answers -Static
If the manufacture of a particular crane does not specifically permit pick and carry
operations what procedure must be followed during this operation? - Answers -Don't
make any pick and carry lifts
What is the main purpose of a jib/extension? - Answers -To extend reach higher or up
and over
When the number of layers of rope on a drum increase the line pull___________. -
Answers -Decreases
When handling boom sections, the best place for slings to be attached is; - Answers -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; - Answers -
Make the crane more stable
What is the major effect of stopping suddenly a rapid swing while operating long boom
crane? - Answers -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 _____ the original throat opening. - Answers -5%
On a crawler crane ground bearing pressure is greatest where? - Answers -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? - Answers -The bottom pins ahead of the cantilever point
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