NCCCO Lattice Boom General Knowledge questions
and verified answers (detailed & elaborated)
ACTUAL EXAM 2025 TESTS!!
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?
Ans: 2%
Quiz 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?
Ans: A. 75%
Quiz The most unstable working quadrant for a crawler crane is the;
Ans: Side
Quiz What type of capacity is listed on a crane load chart?
Ans: Static
Quiz If the manufacture of a particular crane does not specifically permit pick and carry operations what
procedure must be followed during this operation?
, Ans: Don't make any pick and carry lifts
Quiz What is the main purpose of a jib/extension?
Ans: To extend reach higher or up and over
Quiz When the number of layers of rope on a drum increase the line pull___________.
Ans: Decreases
Quiz When handling boom sections, the best place for slings to be attached is;
Ans: At the pin connections at the ends of the top chords
Quiz Placing timber blocking under the tips of the tracks on a crawler crane will;
Ans: Make the crane more stable
Quiz What is the major effect of stopping suddenly a rapid swing while operating long boom crane?
Ans: Action may cause the crane boom collapse and/or overturn the crane
Quiz According to B30.10 hooks shall be removed from service when the throat opening exceeds _____
the original throat opening.
and verified answers (detailed & elaborated)
ACTUAL EXAM 2025 TESTS!!
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?
Ans: 2%
Quiz 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?
Ans: A. 75%
Quiz The most unstable working quadrant for a crawler crane is the;
Ans: Side
Quiz What type of capacity is listed on a crane load chart?
Ans: Static
Quiz If the manufacture of a particular crane does not specifically permit pick and carry operations what
procedure must be followed during this operation?
, Ans: Don't make any pick and carry lifts
Quiz What is the main purpose of a jib/extension?
Ans: To extend reach higher or up and over
Quiz When the number of layers of rope on a drum increase the line pull___________.
Ans: Decreases
Quiz When handling boom sections, the best place for slings to be attached is;
Ans: At the pin connections at the ends of the top chords
Quiz Placing timber blocking under the tips of the tracks on a crawler crane will;
Ans: Make the crane more stable
Quiz What is the major effect of stopping suddenly a rapid swing while operating long boom crane?
Ans: Action may cause the crane boom collapse and/or overturn the crane
Quiz According to B30.10 hooks shall be removed from service when the throat opening exceeds _____
the original throat opening.
