Drilling And Blasting - Study Mode
[#596] The cotton wool in gas mask removes . . . . . . . .
Correct Answer
(D) Smoke and dust
[#597] A fan circulates 6000 m 3 /min of air at a pressure of 20 mm of Hg. Air power in HP will be
Correct Answer
(B) 26.66
[#598] The weight strength of blasting gelatine is . . . . . . . .
Correct Answer
(D) 100
[#599] To control the fly rock the blasting technique adopted is . . . . . . . .
Correct Answer
(A) Muffled blasting
[#600] Auxiliary fan used for
Correct Answer
(B) Long headings thus constitutes dead ends