GATE 2025 PI – Question 39
Manufacturing Processes II · Machining · 2 marks · Multiple choice
Match grinding terms P: loading; Q: glazing; R: dressing; S: truing, with definitions 1: regenerate sharpness; 2: chips fill spaces between grits; 3: restore wheel geometry; 4: dull wheel with worn grains.
- P–4; Q–1; R–3; S–2
- P–2; Q–3; R–1; S–4
- P–2; Q–4; R–1; S–3
- P–4; Q–3; R–1; S–2
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Show answer and explanation
Correct answer: (C) P–2; Q–4; R–1; S–3
Explanation
Loading packs chips between grains. Glazing leaves dull, worn abrasive surfaces. Dressing exposes fresh cutting edges; truing restores the wheel’s shape and concentricity. Hence **P–2,Q–4,R–1,S–3: C**.
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