NCCCO LATTICE BOOM CRAWLER CRANE QUESTIONS WITH PASSED ANSWERS!!
On a lattice boom crawler crane, the main boom length is measured from the: - (ANSWER)Center of the
boom heel pins to the center of the boom tip sheave
What is the main purpose of mid point suspension pendants? - (ANSWER)To absorb shock that comes
with dynamic loading
The main purpose of a gantry or a mast on a crane is: - (ANSWER)To increase the crane's leverage on the
boom
What effect does having the crawlers retracted have on a crawler crane with a long boom -
(ANSWER)Increases the probability of tipping
When using a mobile crane on a barge, the crane's load capacity chart shall be - (ANSWER)Replaced by a
list chart
Blocking can be placed under the ends of tracks to: - (ANSWER)Increase the crane's stability when
operating over the front or back
A crawler crane is based on ________ stability of static load. - (ANSWER)75%
What quadrant produces the least amount of ground pressure on a lattice crawler - (ANSWER)Side
When a crawler crane is on a barge, the list chart must be provided by the - (ANSWER)Manufacturer
When operating a crawler crane, the ground pressure will always be highest over the - (ANSWER)Corner
Unless working in loos soft soil, a crawler crane should always travel _____ on pick and carry operations
- (ANSWER)Towards the load
Why use mats of cribbing - (ANSWER)To reduce ground pressure
, NCCCO LATTICE BOOM CRAWLER CRANE QUESTIONS WITH PASSED ANSWERS!!
Mats are usually _____ to hold together. - (ANSWER)Bolted
A crawler crane traveling forward is defined as traveling in the direction of - (ANSWER)The idler
When disassembling or assembling booms on lattice boom cranes, it is extremely important to -
(ANSWER)Never touch any pin on any boom section located between the pendant attachment points
and the crane
On a lattice boom crane, the device that automatically stops the boom when it nears the maximum
angle is the - (ANSWER)Boom hoist kick out
When is it safe to handle loads under power lines - (ANSWER)The load nor any part of the crane can
come closer than regulations allow
Manufacture specs only permit a certain amount of boom to be suspended out past the connection
point of the pendants during assembly or disassembly of the boom. This portion of boom is called the -
(ANSWER)Cantilever Length
When installing a pin-connected lattice boom on a mobile crane, you should always - (ANSWER)Use the
boom hoist pawl to hold the boom
When making a lift with a lattice boom crawler crane, ground pressure can be reduced by lifting over the
- (ANSWER)Side
Pendant spreader bars on long booms are used to prevent - (ANSWER)Main pendants from scrubbing
the boom sides
By order of hitch strength, which is the correct answer - (ANSWER)Basket, vertical, choker
On a lattice boom crawler crane, the main boom length is measured from the: - (ANSWER)Center of the
boom heel pins to the center of the boom tip sheave
What is the main purpose of mid point suspension pendants? - (ANSWER)To absorb shock that comes
with dynamic loading
The main purpose of a gantry or a mast on a crane is: - (ANSWER)To increase the crane's leverage on the
boom
What effect does having the crawlers retracted have on a crawler crane with a long boom -
(ANSWER)Increases the probability of tipping
When using a mobile crane on a barge, the crane's load capacity chart shall be - (ANSWER)Replaced by a
list chart
Blocking can be placed under the ends of tracks to: - (ANSWER)Increase the crane's stability when
operating over the front or back
A crawler crane is based on ________ stability of static load. - (ANSWER)75%
What quadrant produces the least amount of ground pressure on a lattice crawler - (ANSWER)Side
When a crawler crane is on a barge, the list chart must be provided by the - (ANSWER)Manufacturer
When operating a crawler crane, the ground pressure will always be highest over the - (ANSWER)Corner
Unless working in loos soft soil, a crawler crane should always travel _____ on pick and carry operations
- (ANSWER)Towards the load
Why use mats of cribbing - (ANSWER)To reduce ground pressure
, NCCCO LATTICE BOOM CRAWLER CRANE QUESTIONS WITH PASSED ANSWERS!!
Mats are usually _____ to hold together. - (ANSWER)Bolted
A crawler crane traveling forward is defined as traveling in the direction of - (ANSWER)The idler
When disassembling or assembling booms on lattice boom cranes, it is extremely important to -
(ANSWER)Never touch any pin on any boom section located between the pendant attachment points
and the crane
On a lattice boom crane, the device that automatically stops the boom when it nears the maximum
angle is the - (ANSWER)Boom hoist kick out
When is it safe to handle loads under power lines - (ANSWER)The load nor any part of the crane can
come closer than regulations allow
Manufacture specs only permit a certain amount of boom to be suspended out past the connection
point of the pendants during assembly or disassembly of the boom. This portion of boom is called the -
(ANSWER)Cantilever Length
When installing a pin-connected lattice boom on a mobile crane, you should always - (ANSWER)Use the
boom hoist pawl to hold the boom
When making a lift with a lattice boom crawler crane, ground pressure can be reduced by lifting over the
- (ANSWER)Side
Pendant spreader bars on long booms are used to prevent - (ANSWER)Main pendants from scrubbing
the boom sides
By order of hitch strength, which is the correct answer - (ANSWER)Basket, vertical, choker
