Question

The maximum efficiency in a Screw Jack is given as:

• A. \(\frac{1+ cos\vartheta_s}{1-cos \vartheta_s}\)
• B. \(\frac{1-cos\vartheta_s}{1+cos \vartheta_s}\)
• C. \(\frac{1+sin \vartheta_s}{1-sin \vartheta_s}\)
• D. \(\frac{1-sin \vartheta_s}{1+sin \vartheta_s}\)

Answer 1

The Correct Option is D

The correct option is (D): \(\frac{1-sin \vartheta_s}{1+sin \vartheta_s}\)