Mine Ventilation - Study Mode

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[#176] Capacity of power pack in D 6 methanometer

(A) 2A

(B) 2.5A

(C) 1.5A

(D) 1.2A

Correct Answer

(D) 1.2A

[#177] Density of air at 15°C and 760 mm Hg is

(A) 1.3 kg/m 3

(B) 1.381 kg/m 3

(C) 1.218 kg/m 3

(D) 2.218 kg/m 3

Correct Answer

(C) 1.218 kg/m 3

[#178] Mechanical mixture of inflammable gases given of from coal called

(A) white damp

(B) stink damp

(C) fire damp

(D) after damp

Correct Answer

(C) fire damp

[#179] Stink damp relates to

(A) H 2 S

(B) CH 4

(C) NO 2

(D) SO 2

Correct Answer

(A) H 2 S

[#180] The birds are affected much earlier than man by . . . . . . . .

(A) CO 2

(B) CO

(C) CH 4

(D) H 2 S

Correct Answer

(B) CO