Intermediate Rigging Exam Questions with Right Solutions Graded A+.
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Course
Ncccer advance rigger
Institution
Ncccer Advance Rigger
What is the distance from an uncompacted soil - Answer: 1.5 ×depth
What is the distance from compacted soil - Answer: 1×depth
How far past tracks must mats be - Answer: 2'
Name 2 methods for cribbing - Answer: 1) area of float ×3= blocking area
2) crane capacity ÷5= blocking ...
Intermediate
Rigging Exam
Questions with
Right Solutions
Graded A+
Denning [Date] [Course title]
, What is the distance from an uncompacted soil - Answer: 1.5 ×depth
What is the distance from compacted soil - Answer: 1×depth
How far past tracks must mats be - Answer: 2'
Name 2 methods for cribbing - Answer: 1) area of float ×3= blocking area
2) crane capacity ÷5= blocking area
How level must cranes be - Answer: 1% or .57°
What is the formula for leverage - Answer: Weight × distance = weight × distance
How far must you type off the crane - Answer: 2' from the counter weights
What is the wind speed that stops hoisting operations - Answer: 25-30 MPH
At what speed do you stop hoisting personnel - Answer: 20 MPH
When is side loading okay - Answer: Only with a freely suspended load
What is effective weight - Answer: Everything below the boom tip
Who must sign off on new signals - Answer: The operator, signal person, lift director
What is the best tag line to use for work near powerlines - Answer: Polypropylene
What does it mean when you have localized narrowing of outside diameter of wire rope - Answer:
Broken core
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