Mining Machinery - Study Mode
[#121] Detaching hooks are used only with
Correct Answer
(A) Drum winders
[#122] What is the main purpose of jazz rail on underground haulage track?
Correct Answer
(C) To avoid over speeding
[#123] If the wires in the strand and the strands in the rope are laid in opposite direction called . . . . . . . .
Correct Answer
(A) Ordinary lay
[#124] A 12 tonne diesel locomotive of 60 kW is plying in an underground haulage roadway. The coefficient of adhesion is 0.25 and the maximum gear efficiency is 80%. The speed in m/s at which it will haul a train at its full power is
Correct Answer
(D) 1.630
[#125] According to IS specifications 1835 of 1961 neither sulphur nor phosporous content in steel for wire rope should exceed . . . . . . . . percent.
Correct Answer
(C) 0.033