The GATE Grind

GATE 2018 ME (ME1) – Question 24

Machining and Machine Tool Operations · Abrasive and non-traditional machining processes · 1 mark · Multiple choice

A grinding ratio of 200 implies ______.

  1. wheel wear volume is 200 times material-removed volume
  2. wheel wear volume is 0.005 times material-removed volume
  3. abrasive-particle aspect ratio is 200
  4. abrasive-particle volume divided by wheel volume is 200

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (B) wheel wear volume is 0.005 times material-removed volume

Explanation

Grinding ratio is removed material volume divided by wheel wear volume. Thus $V_w=V_r/200=0.005V_r$ (B).