Question #552
Based on the diagram, identify value A (DOR depending on angle α) for a two-leg sling:
W oparciu o przedstawiony rysunek wskaż wartość A (DOR w oparciu o kąt α ) dla zawiesia dwucięgnowego:
Open full-size illustrationa
70%
70%
b
90%
90%
c
110%
110%
d
50%
50%
Correct answer
Why?
A corresponds to an angle α of 120° between the sling legs (cięgna), where the working load limit (DOR) is 50% of the value for vertical legs. Increasing the angle increases leg tension for the same load. The 70% value shown applies to 90°.