Mining Machinery - Study Mode
[#221] Expected out put from a continuous miner in underground.
Correct Answer
(A) 1500 tpd
[#222] The rope speed is generally . . . . . . . . km/h in direct rope haulage.
Correct Answer
(D) 12
[#223] Drill rod fits in drill chuck by . . . . . . . . joint the bit attached to the rod by . . . . . . . .
Correct Answer
(D) Bayonet, wire nail
[#224] For hoisting in deep mines, the type of drum employed as it reduces the net starting torque.
Correct Answer
(B) By-cylindro conical
[#225] If U and V are the velocities of water at two points in a pipe line, the difference in pressure energy to water is P =
Correct Answer
(B) $$frac{{{{ ext{V}}^2}}}{{2{ ext{g}}}} - frac{{{{ ext{U}}^2}}}{{2{ ext{g}}}}$$