Drilling And Blasting - Study Mode

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[#801] The deposit in shallow depth is approached by

(A) Adit

(B) Incline

(C) Shaft

(D) Decline

Correct Answer

(B) Incline

[#802] Which law explains fluid flow

(A) Poiseuille equation

(B) Bernoullis equation

(C) Bromilow's formule

(D) Strokes law

Correct Answer

(B) Bernoullis equation

[#803] The isolation stopings should be well locked to roof, floor, sides, the minimum depth of locking should be in sand stone roof.

(A) 30 cm

(B) 50 cm

(C) 15 cm

(D) 1 m

Correct Answer

(C) 15 cm

[#804] The percentage of sulphur present in gun powder.

(A) 10%

(B) 15%

(C) 75%

(D) 90%

Correct Answer

(A) 10%

[#805] Strength of booster is

(A) 60

(B) 70

(C) 80

(D) 82

Correct Answer

(D) 82