Question

Match the following locations with support types in coal mines.
Location Support type
P. Roadway junctions 1. Powered support
Q. Between adjacent panels 2. Chock and bolt
R. Longwall face 3. Back fill
S. Goaf 4. Barrier pillar
(A) P-2,Q-3,R-1,S-4 (B) P-4,Q-3,R-1,S-2 (C) P-2,Q-4,R-1,S-3 (D) P-2,Q-3,R-4,S-1

Answer 1

B is the correct answer.