The GATE Grind

GATE 2022 MN – Question 23

Mining Methods and Machinery · Mining Machinery · 1 mark · Multiple choice

Match machines P continuous miner, Q jackhammer, R AFC and S shield support with components I flight bar, II lemniscate link, III loading apron and IV rifle bar.

  1. P–III; Q–IV; R–I; S–II
  2. P–IV; Q–III; R–I; S–II
  3. P–III; Q–IV; R–II; S–I
  4. P–IV; Q–III; R–II; S–I

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (A) P–III; Q–IV; R–I; S–II

Explanation

A continuous miner gathers cut coal on its loading apron. A jackhammer’s rifle bar provides drill rotation. An armoured face conveyor moves coal with flight bars, while a shield’s lemniscate linkage controls its motion. These give P–III, Q–IV, R–I, S–II, A.

More Mining Machinery questions

All Mining Machinery questions →