Drilling And Blasting - Study Mode
[#386] Nearly flat gradients required for operation of thus haulage.
Correct Answer
(B) Loco
[#387] If the gas emission in a mine is very high as may some. times occur in very deep mines, it is a safe practice to substitute electric power supply by . . . . . . . .
Correct Answer
(B) Compressed air
[#388] Heat produced by human being through the process of . . . . . . . .
Correct Answer
(A) Metabolism
[#389] The weight of self contained breathing apparatus of proto marks V . . . . . . . . of 2 hour duration in kg.
Correct Answer
(B) 17.2
[#390] The quantity survey can be made in gassy mines of III degree once in every . . . . . . . . days.
Correct Answer
(A) 30