Question

Match the following for a drilling system.
Component Function
P. Drill 1. Utilization of energy in fragmenting rock
Q. Drill rod 2. Reduction of energy loss due to regrinding
R. Drill bit 3. Conversion of original form of energy into mechanical energy
S. Flushing medium 4. Transmission of energy from prime mover to applicator
(A) P-3,Q-1,R-2,S-4 (B) P-4,Q-1,R-3,S-2 (C) P-3,Q-4,R-1,S-2 (D) P-2,Q-1,R-3,S-4

Answer 1

option a is the answer

Answer 2

b is the answer

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