Drilling And Blasting - Study Mode

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[#531] Air samples from behind stopping should be drawn during period of . . . . . . . . barometer.

(A) High

(B) Medium

(C) Low

(D) Poor

Correct Answer

(C) Low

[#532] CTC fire extinguishers use for to extinguish

(A) Class E

(B) Class D

(C) Class A

(D) Class B

Correct Answer

(A) Class E

[#533] In case of reversal of air flow of the fan pressure - volume flow characteristics (P-Q) will indicate

(A) High

(B) Less

(C) Constant

(D) First increase then decrease

Correct Answer

(B) Less

[#534] The values of the Angle of draw to the dip side workings to the rise side workings have . . . . . . . .

(A) Same values

(B) Different values

(C) No values

(D) Higher values

Correct Answer

(B) Different values

[#535] Rise of dry bulb temperature due to auto compression per 100 m depth is

(A) 0.976

(B) 0.273

(C) 0.373

(D) 0.284

Correct Answer

(A) 0.976