Question #577
Using the diagram, identify value A for a two-leg sling:
W oparciu o przedstawiony rysunek wskaż wartość A dla zawiesia dwucięgnowego:
Open full-size illustrationa
120%
120%
b
90%
90%
c
70%
70%
d
50%
50%
Correct answer
Why?
At 60° from vertical, the two-leg sling (zawiesie dwucięgnowe) has 50% of the capacity of the vertical-leg arrangement marked 100%. This follows from cos 60° = 0.5. The 70% value applies at 45° and would overload the sling at 60°.