Drilling And Blasting - Practice Test

[#406] Silica gel in gas mask removes . . . . . . . .

(A) Ammonia and water vapour

(B) CO

(C) Smoke

(D) CaCl 2

(E) Ammonia and water vapour

(F) CO

(G) Smoke

(H) CaCl 2

Correct Answer

(A) Ammonia and water vapour
(E) Ammonia and water vapour

[#407] A roadway driven along strike of seam.

(A) Drift

(B) Level

(C) Heading

(D) Dip

Correct Answer

(B) Level

[#408] If after charging a shot-hole inftammable gas is found in any place within . . . . . . . . radius no shot hole shall be fired until the place is cleared of gas. Fill up the blanks.

(A) 9 m

(B) 18 m

(C) 30 m

(D) 60 m

Correct Answer

(B) 18 m

[#409] A second barrier (heavy type) should be placed further outbye at . . . . . . . .m from the face.

(A) 250 - 350

(B) 200 - 350

(C) 50 - 120

(D) 100 -250

Correct Answer

(B) 200 - 350

[#410] The reviving apparatus usually the rate of flow ranging from . . . . . . . . lits/mins according to the rate and depth of patient's breathing.

(A) 0 - 20

(B) 5 - 20

(C) 10 - 30

(D) 30 - 50

Correct Answer

(C) 10 - 30

Drilling And Blasting - Study Mode

[#406] Silica gel in gas mask removes . . . . . . . .

Correct Answer

[#407] A roadway driven along strike of seam.

Correct Answer

[#408] If after charging a shot-hole inftammable gas is found in any place within . . . . . . . . radius no shot hole shall be fired until the place is cleared of gas. Fill up the blanks.

Correct Answer

[#409] A second barrier (heavy type) should be placed further outbye at . . . . . . . .m from the face.

Correct Answer

[#410] The reviving apparatus usually the rate of flow ranging from . . . . . . . . lits/mins according to the rate and depth of patient's breathing.

Correct Answer