NCCCO Lattice Boom General Knowledge |
Newest Questions and Answers | 2026
Update | Expert Verified
• 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? -✓✓ A. 75%
• The most unstable working quadrant for a crawler crane is the; -✓✓ Side
• What type of capacity is listed on a crane load chart? -✓✓ Static
• If the manufacture of a particular crane does not specifically permit pick and
carry operations what procedure must be followed during this operation? -✓✓
Don't make any pick and carry lifts
• What is the main purpose of a jib/extension? -✓✓ To extend reach higher or up
and over
• When the number of layers of rope on a drum increase the line pull___________.
-✓✓ Decreases
• When handling boom sections, the best place for slings to be attached is; -✓✓ 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; -✓✓
Make the crane more stable
, • What is the major effect of stopping suddenly a rapid swing while operating long
boom crane? -✓✓ 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. -✓✓ 5%
• On a crawler crane ground bearing pressure is greatest where? -✓✓ 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? -✓✓ The bottom pins ahead of the
cantilever point
• Most crane manufactures require the load chart capacities must be reduced when
wind speed reaches; -✓✓ 20 mph
• The definition of cantilever of a lattice boom crane is; -✓✓ The boom suspended
past the pendant connections
• What chart do you use when operating a crane on a barge; -✓✓ List chart
• According to OSHA, Jibs must have a positive ________ from backwards
overturning -✓✓ Stop
• Mobile cranes on barges shall be -✓✓ Physically attached to the barge
Newest Questions and Answers | 2026
Update | Expert Verified
• 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? -✓✓ A. 75%
• The most unstable working quadrant for a crawler crane is the; -✓✓ Side
• What type of capacity is listed on a crane load chart? -✓✓ Static
• If the manufacture of a particular crane does not specifically permit pick and
carry operations what procedure must be followed during this operation? -✓✓
Don't make any pick and carry lifts
• What is the main purpose of a jib/extension? -✓✓ To extend reach higher or up
and over
• When the number of layers of rope on a drum increase the line pull___________.
-✓✓ Decreases
• When handling boom sections, the best place for slings to be attached is; -✓✓ 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; -✓✓
Make the crane more stable
, • What is the major effect of stopping suddenly a rapid swing while operating long
boom crane? -✓✓ 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. -✓✓ 5%
• On a crawler crane ground bearing pressure is greatest where? -✓✓ 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? -✓✓ The bottom pins ahead of the
cantilever point
• Most crane manufactures require the load chart capacities must be reduced when
wind speed reaches; -✓✓ 20 mph
• The definition of cantilever of a lattice boom crane is; -✓✓ The boom suspended
past the pendant connections
• What chart do you use when operating a crane on a barge; -✓✓ List chart
• According to OSHA, Jibs must have a positive ________ from backwards
overturning -✓✓ Stop
• Mobile cranes on barges shall be -✓✓ Physically attached to the barge
