1
Q
What Is D/d ratio ?
A
Big D represents diameter of sheave
Little d represents diameter of wire rope
2
Q
How would you determine parts of line needed for a lift ?
A
POL=loadweight/WLL (line pull/winchpull)
3
Q
How do you determine the max load for a line ?
A
WLL (line pull) x ratio (poc)
4
Q
How would you determine your lead line pull?
A
Load weight / ratio
Crane Theory
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