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NCCCO test #3 Questions and answers with 100% correct solution
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NCCCO test #3 Questions and answers with 100% correct solution
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NCCCO test #3 Questions and answerswith 100% correct solutions | A+
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When a lattice boom truck crane is lifting on outriggers, the floats or pad should always be:
✔✔Secured to the outriggers
Manufacturer specifications permit only a certain amount of boom to be suspended out past the
connection point of the pendants during assembly or disassembly of the boom. The portion of boom
that is suspended in this way is called the: ✔✔Cantilever length
When lattice boom is being disassembled or shortened, it is extremely important to: ✔✔Never
touch any pin on any boom section located between pendent attachment points and the crane
When installing a pin-connected lattice boom on a mobile crane you should always: ✔✔Use the
boom hoist Pawl to hold the boom
When you change the jib to ground angle from 40° to 30° you have: ✔✔Decreased the capacity of the jib
, A lattice boom truck crane with 120 foot boom will be operating at a 42 foot radius.The load chart shows an
entry indicating 25,000 pounds at a 40 foot radius, followed immediately by an entry listing 20,000 pounds
at a 45 foot radius.What is the cranes capacity of the 42 foot radius? ✔✔20,000 pounds
A truck crane operating with outriggers fully extended and set does not have a fifth front
outrigger,the operator should: ✔✔Refer to the manufacturers working area diagram
A crane that climbs a 7% grade, 1 mile hill should descend down the hill in : ✔✔Either fourth or
fifth gear
A lattice boom truck crane, when set up out of level, will lose the most capacity with? ✔✔Long
boom short radius
A device that automatically stops the boom when it nears the maximum angle is the: ✔✔Boom
hoist kick-out
When a lattice boom truck crane is operating on properly set outriggers, the tipping access is located at
the: ✔✔Point where the outriggers touch the ground
The purpose of placing mats or cribbing under outrigger floats is to: ✔✔Distribute the downward force
of the float over a larger area
A crane loses stability when it's leverage on the load is ✔✔Less than the loads leverage on the crane
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