Drilling And Blasting - Study Mode
[#81] The velocity in ducts is measured by using
Correct Answer
(B) Pitot tube
[#82] Aim of sealing of fire is . . . . . . . .
Correct Answer
(A) To starve it of oxygen
[#83] The total coal reserves are available in thick seams above 5 m is about in India.
Correct Answer
(C) 64%
[#84] The theoretical depression of forward blade fan given by the formula.
Correct Answer
(C) $$H = frac{{Uleft( {U + Vcot heta }
ight)}}{g}$$
[#85] Smoke helmet or hose mask works under continuous . . . . . . . . pressure.
Correct Answer
(B) Positive