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NCCCO LATTICE BOOM GENERAL KNOWLEDGE EXAM LATEST 2026-2027
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
What is the minimum design factor required for a pendants or
standing ropes shall not be less than? - ANSWER-3.0
Live or running ropes used in boom erection conditions the design
factor shall not be less than? - ANSWER-3.0
Standing ropes or pendant lines used in boom erection conditions
the design factor shall not be less than? - ANSWER-2.5
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%
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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
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
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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
During disassembly of a long boom, the pendant lines are
connected at the maximum cantilever point and the boom is
slightly lifted off the ground, which boom connection pins are to be
removed next? - ANSWER-The bottom pins ahead of the
cantilever point
NCCCO LATTICE BOOM GENERAL KNOWLEDGE EXAM LATEST 2026-2027
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
What is the minimum design factor required for a pendants or
standing ropes shall not be less than? - ANSWER-3.0
Live or running ropes used in boom erection conditions the design
factor shall not be less than? - ANSWER-3.0
Standing ropes or pendant lines used in boom erection conditions
the design factor shall not be less than? - ANSWER-2.5
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%
,2|Page
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
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
, 3|Page
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
During disassembly of a long boom, the pendant lines are
connected at the maximum cantilever point and the boom is
slightly lifted off the ground, which boom connection pins are to be
removed next? - ANSWER-The bottom pins ahead of the
cantilever point
