Miscellaneous In Mining - Study Mode

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[#91] In a mine big roof fall taken place in main in take air way, fan drift water gauge.

(A) Will decrease

(B) Increase temporarly

(C) Remain uneffected

(D) Will register an increase

Correct Answer

(D) Will register an increase

[#92] Carbide lamps can withstand an air velocity of . . . . . . . . m/sec.

(A) 2.5

(B) 2

(C) 3

(D) 5

Correct Answer

(D) 5

[#93] A meter candle is also termed as . . . . . . . .

(A) Lumen

(B) Lux

(C) MSCP

(D) MHCP

Correct Answer

(B) Lux

[#94] The three parallel road ways have resistance of 9, 16, 25 ketomings respectively. Find the total resistance of the mine.

(A) 6

(B) 7.63

(C) 2

(D) 3

Correct Answer

(B) 7.63

[#95] Weight of methalarm . . . . . . . . g.

(A) 50

(B) 60

(C) 80

(D) 100

Correct Answer

(C) 80