NCCCO Lattice Boom General Knowledge Exam Practice Questions and Answers |100% Pass
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Course
2024/2025
Institution
2024/2025
NCCCO Lattice Boom General
Knowledge Exam Practice Questions and
Answers |100% 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? - Answer-2%
The part of the load chart governed...
What is the major effect of stopping suddenly a rapid swing while operating long boom crane? -
Answer✔✔-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. - Answer✔✔-5%
On a crawler crane ground bearing pressure is greatest where? - Answer✔✔-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? -
Answer✔✔-The bottom pins ahead of the cantilever point
Most crane manufactures require the load chart capacities must be reduced when wind speed reaches; -
Answer✔✔-20 mph
The definition of cantilever of a lattice boom crane is; - Answer✔✔-The boom suspended past the
pendant connections
What chart do you use when operating a crane on a barge; - Answer✔✔-List chart
According to OSHA, Jibs must have a positive ________ from backwards overturning - Answer✔✔-Stop
Mobile cranes on barges shall be - Answer✔✔-Physically attached to the barge
When a crane is properly barricaded, what is the clearance required all the way around 360 degrees
between the superstructure and the barricade when swung 360 degrees? - Answer✔✔-2 feet
According to ASME B30.5 a fire extinguisher shall have a rating of __________ and shall be available at
all operator's stations or cabs of the equipment. - Answer✔✔-10 BC or higher
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