NCCCO Lattice boom Exam UPDATED
QUESTIONS AND CORRECT ANSWERS
According to OSHA 1926.1424, which area around a crawler crane must always be
barricaded - CORRECT ANSWER The rear swing radius
Whenever a sudden and unusual shock load has been applied to the crane, the operator shall -
CORRECT ANSWER Ensure an inspection is performed immediately
A pin-connected lattice boom is being dismantled. After connecting pendants at the maximum
cantilever point and lifting the boom slightly off the ground, the next step is to remove -
CORRECT ANSWER The lower connection pins located at and ahead of pendants
According to OSHA 1926.1437 when operating a crawler crane on a barge, it is necessary to -
CORRECT ANSWER Attach crane to the barge
What percentage of tipping are crawlers usually rated at - CORRECT ANSWER 75%
When lifting over the side of a crawler, the tipping axis of the crane will change when -
CORRECT ANSWER Tracks are extended or retracted
Which lattice boom configuration will lose the most capacity when the crane is out of level? -
CORRECT ANSWER Long boom, with minimum radius
According to ASME B30.5, the boom shall not be lowered to the point where there are no
less than how many full wraps of cable on the drum? - CORRECT ANSWER 2
When assembling a lattice boom on most crawler cranes, using inserts or different lengths,
which insert section should be closest to the boom foot - CORRECT ANSWER 10ft, or
smallest available.
QUESTIONS AND CORRECT ANSWERS
According to OSHA 1926.1424, which area around a crawler crane must always be
barricaded - CORRECT ANSWER The rear swing radius
Whenever a sudden and unusual shock load has been applied to the crane, the operator shall -
CORRECT ANSWER Ensure an inspection is performed immediately
A pin-connected lattice boom is being dismantled. After connecting pendants at the maximum
cantilever point and lifting the boom slightly off the ground, the next step is to remove -
CORRECT ANSWER The lower connection pins located at and ahead of pendants
According to OSHA 1926.1437 when operating a crawler crane on a barge, it is necessary to -
CORRECT ANSWER Attach crane to the barge
What percentage of tipping are crawlers usually rated at - CORRECT ANSWER 75%
When lifting over the side of a crawler, the tipping axis of the crane will change when -
CORRECT ANSWER Tracks are extended or retracted
Which lattice boom configuration will lose the most capacity when the crane is out of level? -
CORRECT ANSWER Long boom, with minimum radius
According to ASME B30.5, the boom shall not be lowered to the point where there are no
less than how many full wraps of cable on the drum? - CORRECT ANSWER 2
When assembling a lattice boom on most crawler cranes, using inserts or different lengths,
which insert section should be closest to the boom foot - CORRECT ANSWER 10ft, or
smallest available.
