NCCCO Lattice Boom General
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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? -
Answer✅✅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? - Answer✅✅A.
75%
The most unstable working quadrant for a crawler crane is the; - Answer✅✅Side
What type of capacity is listed on a crane load chart? - Answer✅✅Static
If the manufacture of a particular crane does not specifically permit pick and carry
operations what procedure must be followed during this operation? -
Answer✅✅Don't make any pick and carry lifts
, What is the main purpose of a jib/extension? - Answer✅✅To extend reach higher
or up and over
When the number of layers of rope on a drum increase the line pull___________. -
Answer✅✅Decreases
When handling boom sections, the best place for slings to be attached is; -
Answer✅✅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; -
Answer✅✅Make the crane more stable
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
Knowledge Exam| Brand New
Expert Exam Questions with 100%
Correct Clear Verified Answers| All
Graded A+|Latest Premium
Update|100% Guaranteed Success.
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 by stability is based on what percentage of
capacity while a crawler crane is working over the side quadrant? - Answer✅✅A.
75%
The most unstable working quadrant for a crawler crane is the; - Answer✅✅Side
What type of capacity is listed on a crane load chart? - Answer✅✅Static
If the manufacture of a particular crane does not specifically permit pick and carry
operations what procedure must be followed during this operation? -
Answer✅✅Don't make any pick and carry lifts
, What is the main purpose of a jib/extension? - Answer✅✅To extend reach higher
or up and over
When the number of layers of rope on a drum increase the line pull___________. -
Answer✅✅Decreases
When handling boom sections, the best place for slings to be attached is; -
Answer✅✅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; -
Answer✅✅Make the crane more stable
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
