The GATE Grind

GATE 2021 MN – Question 37

Mining Methods and Machinery · Mining Machinery · 2 marks · Multiple choice

Match labelled point-attack cutting-tool angles P α, Q β, R δ, S γ with 1 cutting angle, 2 clearance angle, 3 wedge angle, 4 rake angle.

Diagram for GATE 2021 MN question 37
  1. P–2;Q–4;R–1;S–3
  2. P–4;Q–2;R–1;S–3
  3. P–2;Q–4;R–3;S–1
  4. P–4;Q–2;R–3;S–1

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (A) P–2;Q–4;R–1;S–3

Explanation

α is clearance between the flank and cut surface; β is rake measured against the surface normal; δ is the cutting angle and γ the included wedge angle. Therefore P 2, Q 4, R 1, S 3, A. The diagram’s reference lines determine which angle name applies.

More Mining Machinery questions

All Mining Machinery questions →