

MCQOPTIONS
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1. |
The_efficiency_of_the_a_screw_jack_is_maximum,_when$ |
A. | α = 45<sup>0</sup> + ɸ/2 |
B. | α = 45<sup>0</sup> – ɸ/2 |
C. | α = 90<sup>0</sup> + ɸ |
D. | α = 90<sup>0</sup> – ɸ |
Answer» C. ‚âà√≠¬¨¬± = 90<sup>0</sup> + ‚Äö√Ѭ∂‚Äö√†√® | |