Question
Download Solution PDFThe maximum efficiency of a screw jack having square threads and friction angle of 30° will be:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The maximum efficiency of screw jack is:
\(\eta = \frac{{1 - sin\phi }}{{1 + sin\phi }} \)
Calculation:
Given:
\(\eta = \frac{{1 - sin\phi }}{{1 + sin\phi }} = \frac{{1 - \sin 30^\circ }}{{1 + \sin 30^\circ }} = \frac{{1 - \frac{1}{2}}}{{1 + \frac{1}{2}}} = \frac{1}{3} = 33.3\% \)
Last updated on Mar 27, 2025
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