Drilling And Blasting - Study Mode
[#206] The coefficient of friction measured in Germany . . . . . . . .
Correct Answer
(C) Weissbach
[#207] Air velocities in diesel locomotive sheds and battery charging station should be not less than . . . . . . . . m/sec.
Correct Answer
(B) 0.75
[#208] Unless the two shafts are conected by under ground tunnel, no development work inside the mine is . . . . . . . . under law.
Correct Answer
(B) Permitted
[#209] Foam type extinguisher is not permitted to deal with class 'C' fires because
Correct Answer
(C) Foam conductor of electricity
[#210] Mucking means
Correct Answer
(C) Removal of blasting rock and clean the face