NCCCO Lattice Boom TEST STUDY
GUIDE 2026 COMPLETE QUESTIONS
WITH CORRECT DETAILED ANSWERS
|| 100% GUARANTEED PASS
<LATEST VERSION>
1. According to OSHA 1926.1424, which area around a crawler crane must
always be barricaded - ANSWER ✔ The rear swing radius
2. Whenever a sudden and unusual shock load has been applied to the crane,
the operator shall - ANSWER ✔ Ensure an inspection is performed
immediately
3. A pin-connected lattice boom is being dismantled. After connecting
pendants at the maximum cantilever point and lifting the boom slightly off
the ground, the next step is to remove - ANSWER ✔ The lower connection
pins located at and ahead of pendants
4. According to OSHA 1926.1437 when operating a crawler crane on a barge,
it is necessary to - ANSWER ✔ Attach crane to the barge
5. What percentage of tipping are crawlers usually rated at - ANSWER ✔ 75%
6. When lifting over the side of a crawler, the tipping axis of the crane will
change when - ANSWER ✔ Tracks are extended or retracted
,7. Which lattice boom configuration will lose the most capacity when the crane
is out of level? - ANSWER ✔ Long boom, with minimum radius
8. According to ASME B30.5, the boom shall not be lowered to the point
where there are no less than how many full wraps of cable on the drum? -
ANSWER ✔ 2
9. 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%
10.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%
11.The most unstable working quadrant for a crawler crane is the; - ANSWER
✔ Side
12.What type of capacity is listed on a crane load chart? - ANSWER ✔ Static
13.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
14.What is the main purpose of a jib/extension? - ANSWER ✔ To extend reach
higher or up and over
,15.When the number of layers of rope on a drum increase the line
pull___________. - ANSWER ✔ Decreases
16.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
17.Placing timber blocking under the tips of the tracks on a crawler crane will; -
ANSWER ✔ Make the crane more stable
18.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
19.According to B30.10 hooks shall be removed from service when the throat
opening exceeds _____ the original throat opening. - ANSWER ✔ 5%
20.On a crawler crane ground bearing pressure is greatest where? - ANSWER
✔ Over the corner
21.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
22.Most crane manufactures require the load chart capacities must be reduced
when wind speed reaches; - ANSWER ✔ 20 mph
, 23.The definition of cantilever of a lattice boom crane is; - ANSWER ✔ The
boom suspended past the pendant connections
24.What chart do you use when operating a crane on a barge; - ANSWER ✔
List chart
25.According to OSHA, Jibs must have a positive ________ from backwards
overturning - ANSWER ✔ Stop
26.Mobile cranes on barges shall be - ANSWER ✔ Physically attached to the
barge
27.When a crane is properly barricaded, what is the clearance required all the
way around 360 degrees between the superstructure and the barricade when
swung 360 degrees? - ANSWER ✔ 2 feet
28.According to ASME B30.5 a fire extinguisher shall have a rating of
__________ and shall be available at all operator's stations or cabs of the
equipment. - ANSWER ✔ 10 BC or higher
29.When assembling a lattice boom crane the top pins of the boom sections
should be inserted; - ANSWER ✔ First
30.Block hoisting sheaves should have a minimum pitch diameter of at
least________ the rope diameter. - ANSWER ✔ 16 times
GUIDE 2026 COMPLETE QUESTIONS
WITH CORRECT DETAILED ANSWERS
|| 100% GUARANTEED PASS
<LATEST VERSION>
1. According to OSHA 1926.1424, which area around a crawler crane must
always be barricaded - ANSWER ✔ The rear swing radius
2. Whenever a sudden and unusual shock load has been applied to the crane,
the operator shall - ANSWER ✔ Ensure an inspection is performed
immediately
3. A pin-connected lattice boom is being dismantled. After connecting
pendants at the maximum cantilever point and lifting the boom slightly off
the ground, the next step is to remove - ANSWER ✔ The lower connection
pins located at and ahead of pendants
4. According to OSHA 1926.1437 when operating a crawler crane on a barge,
it is necessary to - ANSWER ✔ Attach crane to the barge
5. What percentage of tipping are crawlers usually rated at - ANSWER ✔ 75%
6. When lifting over the side of a crawler, the tipping axis of the crane will
change when - ANSWER ✔ Tracks are extended or retracted
,7. Which lattice boom configuration will lose the most capacity when the crane
is out of level? - ANSWER ✔ Long boom, with minimum radius
8. According to ASME B30.5, the boom shall not be lowered to the point
where there are no less than how many full wraps of cable on the drum? -
ANSWER ✔ 2
9. 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%
10.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%
11.The most unstable working quadrant for a crawler crane is the; - ANSWER
✔ Side
12.What type of capacity is listed on a crane load chart? - ANSWER ✔ Static
13.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
14.What is the main purpose of a jib/extension? - ANSWER ✔ To extend reach
higher or up and over
,15.When the number of layers of rope on a drum increase the line
pull___________. - ANSWER ✔ Decreases
16.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
17.Placing timber blocking under the tips of the tracks on a crawler crane will; -
ANSWER ✔ Make the crane more stable
18.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
19.According to B30.10 hooks shall be removed from service when the throat
opening exceeds _____ the original throat opening. - ANSWER ✔ 5%
20.On a crawler crane ground bearing pressure is greatest where? - ANSWER
✔ Over the corner
21.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
22.Most crane manufactures require the load chart capacities must be reduced
when wind speed reaches; - ANSWER ✔ 20 mph
, 23.The definition of cantilever of a lattice boom crane is; - ANSWER ✔ The
boom suspended past the pendant connections
24.What chart do you use when operating a crane on a barge; - ANSWER ✔
List chart
25.According to OSHA, Jibs must have a positive ________ from backwards
overturning - ANSWER ✔ Stop
26.Mobile cranes on barges shall be - ANSWER ✔ Physically attached to the
barge
27.When a crane is properly barricaded, what is the clearance required all the
way around 360 degrees between the superstructure and the barricade when
swung 360 degrees? - ANSWER ✔ 2 feet
28.According to ASME B30.5 a fire extinguisher shall have a rating of
__________ and shall be available at all operator's stations or cabs of the
equipment. - ANSWER ✔ 10 BC or higher
29.When assembling a lattice boom crane the top pins of the boom sections
should be inserted; - ANSWER ✔ First
30.Block hoisting sheaves should have a minimum pitch diameter of at
least________ the rope diameter. - ANSWER ✔ 16 times
