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GATE 2021 PI – Question 22

Manufacturing Processes II · Advanced Manufacturing · 1 mark · Multiple choice

A die-sinking EDM has pulse frequency 10 kHz and off-time 40 µs. Find duty factor.

  1. 0.40
  2. 0.60
  3. 0.67
  4. 2.50

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Correct answer: (B) 0.60

Explanation

Pulse period = 1/10000 s = 100 µs. On-time = 100−40 = 60 µs. Duty factor = on-time/period = 60/100 = **0.60, B**.

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