NCCCO Lattice Boom Crawler Crane
EXAM Questions & Answers | 100%
Verified solutions |Questions with
Correct Answers 2026/2027 latest
update!!
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
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
When taking a side strain on a boom, what concerns the operator most
-Answer--Boom Damage
You should always have at least how many wraps on a hoist drum -Answer--2
The primary purpose for a rooster sheave or auxiliary boom point sheave is to
-Answer--Separate the whip and main hoist lines
EXAM Questions & Answers | 100%
Verified solutions |Questions with
Correct Answers 2026/2027 latest
update!!
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
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
When taking a side strain on a boom, what concerns the operator most
-Answer--Boom Damage
You should always have at least how many wraps on a hoist drum -Answer--2
The primary purpose for a rooster sheave or auxiliary boom point sheave is to
-Answer--Separate the whip and main hoist lines
