NCCCO Mobile Crane Exam
(2023/ 2024) Questions and 100%
Correct Verified Answers| Grade
A
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,If taking sides strain on a boom what concerns the operator the
most - Answer- Boom damage
If a crane load chart has capacities listed in the shaded
area this means that - Answer- If overloaded structural
confidence will be compromised
As the layers of rope on a drum increase the allowable line Pull
wil - Answer- Decrease
Of the following actions which one will most likely cause a
side load condition - Answer- Abruptly starting or stopping
the swing
Cording to OSHA with any hook ball or attachment at its
lowest point a minimum of blank reps must remain on the
drum at all times - Answer- 2
What is the minimum distance of crane must maintain
from powerlines rated below 50 KV - Answer- 10 feet
What is the best procedures to follow if underground utilities
are present - Answer- Contact utility company
,For boom is reeves eccentrically to the block the most
common result would be - Answer- Twisting of the boom
What is the safety factor for 6 x 19 IWRC
wire rope - Answer- 3.5-1 What is the safety
factor for rotation resistor wire rope - Answer-
5-1 What is the safety factor for rigging
hardware - Answer- 5-1
What is the safety factor one hoisting personnel using IWRC
wire Rope - Answer- 7-1
What is the safety factor hoisting personnel using rotation
resistance wire rope - Answer- 10-1
Unless the manufacturer states otherwise the wind speed to
seize hoisting Shall be - Answer- 30 mph
When hoisting personnel OSHA requires wind speed not to exceed -
, Answer- 20 mph
Who has the responsibility of determining the correct weight of
the load - Answer- Supervisor
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