1.

What is the velocity ratio for a slip in the belt drive system?

A. \(\frac{{{N_1}}}{{{N_2}}} = \frac{{{d_1} + t}}{{{d_2} + t}}\left( {1 - \frac{s}{{100}}} \right)\)
B. \(\frac{{{N_2}}}{{{N_1}}} = \frac{{{d_1} + t}}{{{d_2} + t}}\left( {1 - \frac{s}{{100}}} \right)\)
C. \(\frac{{{N_2}}}{{{N_1}}} = \frac{{{d_1} - t}}{{{d_2} + t}}\left( {1 - \frac{s}{{100}}} \right)\)
D. \(\frac{{{N_2}}}{{{N_1}}} = \frac{{{d_2} + t}}{{{d_1} + t}}\left( {1 - \frac{s}{{100}}} \right)\)
Answer» C. \(\frac{{{N_2}}}{{{N_1}}} = \frac{{{d_1} - t}}{{{d_2} + t}}\left( {1 - \frac{s}{{100}}} \right)\)


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