Intermediate Rigging Exam | Questions and
Verified Answers | Latest Update | 100%
Correct | GRADED A
.
Question:
What is the distance from an uncompacted soil
Answer:
1.5 ×depth
Question:
What is the distance from compacted soil
Answer:
1×depth
Question:
How far past tracks must mats be
Answer:
2'
Question:
Name 2 methods for cribbing
Answer:
,1) area of float ×3= blocking area
2) crane capacity ÷5= blocking area
Question:
How level must cranes be
Answer:
1% or .57°
Question:
What is the formula for leverage
Answer:
Weight × distance = weight × distance
Question:
How far must you type off the crane
Answer:
2' from the counter weights
Question:
What is the wind speed that stops hoisting operations
Answer:
, 25-30 MPH
Question:
At what speed do you stop hoisting personnel
Answer:
20 MPH
Question:
When is side loading okay
Answer:
Only with a freely suspended load
Question:
What is effective weight
Answer:
Everything below the boom tip
Question:
Who must sign off on new signals
Answer:
The operator, signal person, lift director
Verified Answers | Latest Update | 100%
Correct | GRADED A
.
Question:
What is the distance from an uncompacted soil
Answer:
1.5 ×depth
Question:
What is the distance from compacted soil
Answer:
1×depth
Question:
How far past tracks must mats be
Answer:
2'
Question:
Name 2 methods for cribbing
Answer:
,1) area of float ×3= blocking area
2) crane capacity ÷5= blocking area
Question:
How level must cranes be
Answer:
1% or .57°
Question:
What is the formula for leverage
Answer:
Weight × distance = weight × distance
Question:
How far must you type off the crane
Answer:
2' from the counter weights
Question:
What is the wind speed that stops hoisting operations
Answer:
, 25-30 MPH
Question:
At what speed do you stop hoisting personnel
Answer:
20 MPH
Question:
When is side loading okay
Answer:
Only with a freely suspended load
Question:
What is effective weight
Answer:
Everything below the boom tip
Question:
Who must sign off on new signals
Answer:
The operator, signal person, lift director
