Multiple choice

Two tools P and Q have signatures 50 - 50 - 60 - 80 - 300 - 0 and 50 - 50 - 70 -70 - 80 - 150 - 0 (both ASA) respectively. They are used to turn components under the same machining conditions. If hP and hQ denote the peak to-valley heights of surfaces produced by the tools P and Q, the ratio $\frac{h_p}{h_Q}$ will be

  1. $\frac{tan8^0+cot15^0}{tan8^0+cot30^0}$
  2. $\frac{tan15^0+cot8^0}{tan30^0+cot8^0}$
  3. $\frac{tan15^0+cot7^0}{tan30^0+cot7^0}$
  4. $\frac{tan7^0+cot15^0}{tan7^0+cot30^0}$
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B Correct answer
Explanation

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