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Drilling and Blasting MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Drilling and Blasting. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Drilling and Blasting chapter is particularly important for students studying mining engineering. Page-5 section-6

Each section contains 100 MCQs on Drilling and Blasting .
41
If the depth of workings of coal mine below 200 m said to be . . . . . . . .
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Answer & Solution
Answer: Option A
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42
The relation between size of coal and total methane gas content emitted at face.
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Answer & Solution
Answer: Option B
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43
Water CO2 extinguishers suitable only for quency of . . . . . . . .
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Answer & Solution
Answer: Option A
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44
An explosive used in underground mines has to be
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Answer & Solution
Answer: Option A
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45
The fan is more or less permanent installation
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Answer & Solution
Answer: Option C
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46
If the resistance of a roadway 50 m long, 6 m3 cross section being equal to . . . . . . . . kilo murg.
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Answer & Solution
Answer: Option A
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47
A detonating fuse like cordtex is generally used in
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Answer & Solution
Answer: Option D
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48
In inclined manometer, alchohol prefered due to
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Answer & Solution
Answer: Option A
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49
How much time to be taken to enter in a place, where electric blasting done.
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Answer & Solution
Answer: Option A
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50
In a mine ventilation district of deg. II and deg. III, percentage of CH4 exceeds 1.25 at any time the electric supply should be . . . . . . . .
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Answer & Solution
Answer: Option B
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