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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-8

Each section contains 100 MCQs on Drilling and Blasting .
41
Air crossings in gassy coal mines should be . . . . . . . .
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Answer & Solution
Answer: Option D
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42
The country rock present above the vein.
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Answer & Solution
Answer: Option B
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43
For ventilating a heading, drift or tunnel.
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Answer & Solution
Answer: Option B
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44
Electronic anemometers measure air velocities in . . . . . . . . ranges.
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Answer & Solution
Answer: Option C
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45
The pit bottom layout withstand . . . . . . . .
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
46
Spot coolers used in mining cooling capacity varies from . . . . . . . . in Kcal/hour.
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Answer & Solution
Answer: Option A
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47
Explosive mixture of gasses is one, which when once ignited, will allow the flame to be self propagated through out the mixture, independent and away from source of ignition called . . . . . . . .
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Answer & Solution
Answer: Option B
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48
Static gauge pressure at the inlet of any duct is
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Answer & Solution
Answer: Option D
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49
Surface screening plant and tipplers should be at least . . . . . . . . away from the intake shaft.
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Answer & Solution
Answer: Option C
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50
Simplified form of gas mask is
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Answer & Solution
Answer: Option D
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