NCCCO Lattice Boom Crawler Crane
Exam Questions With 100% Accurate
Solutions Scored A+
On a lattice boom crawler crane, the main boom length is measured from the: -
CORRECT 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? - CORRECT ANSWER-
To absorb shock that comes with dynamic loading
The main purpose of a gantry or a mast on a crane is: - CORRECT 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 - CORRECT ANSWER-Increases the probability of tipping
When using a mobile crane on a barge, the crane's load capacity chart shall be -
CORRECT ANSWER-Replaced by a list chart
Blocking can be placed under the ends of tracks to: - CORRECT ANSWER-Increase
the crane's stability when operating over the front or back
A crawler crane is based on ________ stability of static load. - CORRECT ANSWER-
75%
What quadrant produces the least amount of ground pressure on a lattice crawler -
CORRECT ANSWER-Side
When a crawler crane is on a barge, the list chart must be provided by the - CORRECT
ANSWER-Manufacturer
, When operating a crawler crane, the ground pressure will always be highest over the -
CORRECT ANSWER-Corner
Unless working in loos soft soil, a crawler crane should always travel _____ on pick and
carry operations - CORRECT ANSWER-Towards the load
Why use mats of cribbing - CORRECT ANSWER-To reduce ground pressure
Mats are usually _____ to hold together. - CORRECT ANSWER-Bolted
A crawler crane traveling forward is defined as traveling in the direction of - CORRECT
ANSWER-The idler
When disassembling or assembling booms on lattice boom cranes, it is extremely
important to - CORRECT 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 - CORRECT ANSWER-Boom hoist kick out
When is it safe to handle loads under power lines - CORRECT 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 - CORRECT ANSWER-Cantilever Length
When installing a pin-connected lattice boom on a mobile crane, you should always -
CORRECT 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 - CORRECT ANSWER-Side
Exam Questions With 100% Accurate
Solutions Scored A+
On a lattice boom crawler crane, the main boom length is measured from the: -
CORRECT 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? - CORRECT ANSWER-
To absorb shock that comes with dynamic loading
The main purpose of a gantry or a mast on a crane is: - CORRECT 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 - CORRECT ANSWER-Increases the probability of tipping
When using a mobile crane on a barge, the crane's load capacity chart shall be -
CORRECT ANSWER-Replaced by a list chart
Blocking can be placed under the ends of tracks to: - CORRECT ANSWER-Increase
the crane's stability when operating over the front or back
A crawler crane is based on ________ stability of static load. - CORRECT ANSWER-
75%
What quadrant produces the least amount of ground pressure on a lattice crawler -
CORRECT ANSWER-Side
When a crawler crane is on a barge, the list chart must be provided by the - CORRECT
ANSWER-Manufacturer
, When operating a crawler crane, the ground pressure will always be highest over the -
CORRECT ANSWER-Corner
Unless working in loos soft soil, a crawler crane should always travel _____ on pick and
carry operations - CORRECT ANSWER-Towards the load
Why use mats of cribbing - CORRECT ANSWER-To reduce ground pressure
Mats are usually _____ to hold together. - CORRECT ANSWER-Bolted
A crawler crane traveling forward is defined as traveling in the direction of - CORRECT
ANSWER-The idler
When disassembling or assembling booms on lattice boom cranes, it is extremely
important to - CORRECT 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 - CORRECT ANSWER-Boom hoist kick out
When is it safe to handle loads under power lines - CORRECT 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 - CORRECT ANSWER-Cantilever Length
When installing a pin-connected lattice boom on a mobile crane, you should always -
CORRECT 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 - CORRECT ANSWER-Side
