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NCCCO Lattice Boom General Knowledge EXAM |
{LATEST 2026/ 2027 UPDATE} COMPLETE ACTUAL
AND AUTHENTIC EXAM | BRAND NEW!
The lattice boom is designed to take winds of up to 20 mph. from the
side plus a full rated load, plus a direct side load equal to what percent
of the rated load? ......ANSWER......2%
The part of the load chart governed by stability is based on what
percentage of capacity while a crawler crane is working over the side
quadrant? ......ANSWER......A. 75%
The most unstable working quadrant for a crawler crane is the;
......ANSWER......Side
What type of capacity is listed on a crane load chart?
......ANSWER......Static
If the manufacture of a particular crane does not specifically permit pick
and carry operations what procedure must be followed during this
operation? ......ANSWER......Don't make any pick and carry lifts
pg. 1
, 2|Page
What is the main purpose of a jib/extension? ......ANSWER......To extend
reach higher or up and over
When the number of layers of rope on a drum increase the line
pull___________. ......ANSWER......Decreases
When handling boom sections, the best place for slings to be attached
is; ......ANSWER......At the pin connections at the ends of the top
chords
Placing timber blocking under the tips of the tracks on a crawler crane
will; ......ANSWER......Make the crane more stable
What is the major effect of stopping suddenly a rapid swing while
operating long boom crane? ......ANSWER......Action may cause the
crane boom collapse and/or overturn the crane
According to B30.10 hooks shall be removed from service when the
throat opening exceeds _____ the original throat opening.
......ANSWER......5%
On a crawler crane ground bearing pressure is greatest where?
......ANSWER......Over the corner
pg. 2
NCCCO Lattice Boom General Knowledge EXAM |
{LATEST 2026/ 2027 UPDATE} COMPLETE ACTUAL
AND AUTHENTIC EXAM | BRAND NEW!
The lattice boom is designed to take winds of up to 20 mph. from the
side plus a full rated load, plus a direct side load equal to what percent
of the rated load? ......ANSWER......2%
The part of the load chart governed by stability is based on what
percentage of capacity while a crawler crane is working over the side
quadrant? ......ANSWER......A. 75%
The most unstable working quadrant for a crawler crane is the;
......ANSWER......Side
What type of capacity is listed on a crane load chart?
......ANSWER......Static
If the manufacture of a particular crane does not specifically permit pick
and carry operations what procedure must be followed during this
operation? ......ANSWER......Don't make any pick and carry lifts
pg. 1
, 2|Page
What is the main purpose of a jib/extension? ......ANSWER......To extend
reach higher or up and over
When the number of layers of rope on a drum increase the line
pull___________. ......ANSWER......Decreases
When handling boom sections, the best place for slings to be attached
is; ......ANSWER......At the pin connections at the ends of the top
chords
Placing timber blocking under the tips of the tracks on a crawler crane
will; ......ANSWER......Make the crane more stable
What is the major effect of stopping suddenly a rapid swing while
operating long boom crane? ......ANSWER......Action may cause the
crane boom collapse and/or overturn the crane
According to B30.10 hooks shall be removed from service when the
throat opening exceeds _____ the original throat opening.
......ANSWER......5%
On a crawler crane ground bearing pressure is greatest where?
......ANSWER......Over the corner
pg. 2
