NCCCO Lattice Boom Crawler Crane Exam
Questions With Complete Solutions
A crawler crane is based on ________ stability of
static load. Correct Answers 75%
A crawler crane traveling forward is defined as
traveling in the direction of Correct Answers The
idler
A pin-connected lattice boom is being dismantled.
After connecting the equalizer (bridle) to the
connecting lugs on the boom, which boom
connecting pins should be removed first Correct
Answers Lower connection pins, located at the
head of the equalizer
According to OSHA 1926.1431 personnel platforms
lifts should not be made with wind in excess of
Correct Answers 20 MPH
After the crane has been checked out and before
crane lift operations begin the crew should:
Correct Answers Have a pre-lift meeting
Blocking can be placed under the ends of tracks to:
Correct Answers Increase the crane's stability
when operating over the front or back
, Boom Assembly Correct Answers Always install
upper pins first
By order of hitch strength, which is the correct
answer Correct Answers Basket, vertical, choker
During assembly where should you attach slings to
lift boom sections Correct Answers End Fittings
During disassembly of a long boom, the hog lines
are connected at the maximum cantilever point
and the boom is slightly lifted off the ground.
Which pins are to be removed next Correct
Answers The bottom pins ahead of the cantilever
points
Extended Crawlers Will Correct Answers Increase
over side capacities
How does high wind effect cranes with a long boom
Correct Answers It introduces side load onto the
boom
How many broken wires in one strand must there
be to remove a running wire rope from service
Correct Answers 3
How many random broken wires must there be to
remove a running wire rope from service Correct
Answers 6
Questions With Complete Solutions
A crawler crane is based on ________ stability of
static load. Correct Answers 75%
A crawler crane traveling forward is defined as
traveling in the direction of Correct Answers The
idler
A pin-connected lattice boom is being dismantled.
After connecting the equalizer (bridle) to the
connecting lugs on the boom, which boom
connecting pins should be removed first Correct
Answers Lower connection pins, located at the
head of the equalizer
According to OSHA 1926.1431 personnel platforms
lifts should not be made with wind in excess of
Correct Answers 20 MPH
After the crane has been checked out and before
crane lift operations begin the crew should:
Correct Answers Have a pre-lift meeting
Blocking can be placed under the ends of tracks to:
Correct Answers Increase the crane's stability
when operating over the front or back
, Boom Assembly Correct Answers Always install
upper pins first
By order of hitch strength, which is the correct
answer Correct Answers Basket, vertical, choker
During assembly where should you attach slings to
lift boom sections Correct Answers End Fittings
During disassembly of a long boom, the hog lines
are connected at the maximum cantilever point
and the boom is slightly lifted off the ground.
Which pins are to be removed next Correct
Answers The bottom pins ahead of the cantilever
points
Extended Crawlers Will Correct Answers Increase
over side capacities
How does high wind effect cranes with a long boom
Correct Answers It introduces side load onto the
boom
How many broken wires in one strand must there
be to remove a running wire rope from service
Correct Answers 3
How many random broken wires must there be to
remove a running wire rope from service Correct
Answers 6
