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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-2 section-6

Each section contains 100 MCQs on Drilling and Blasting .
11
A level gallery may not be truely along strike but slightly raising in bye because to facilitate.
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
12
Detonating relays are generally used for the purpose of blasting in
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
13
Dust at transfer points may be collected by use of . . . . . . . .
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Answer & Solution
Answer: Option C
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14
The power of explosive is given by in terms of
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Answer & Solution
Answer: Option D
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15
Oxygen balanced explosive mixture with . . . . . . . . of desel oil by weight.
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Answer & Solution
Answer: Option C
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16
The number of cylinders of oxygen in PT 61 pulmotor.
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Answer & Solution
Answer: Option A
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17
Main shafts are designed for . . . . . . . .
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Answer & Solution
Answer: Option D
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18
Manometric efficiency of axial flow fan is . . . . . . . .
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Answer & Solution
Answer: Option A
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19
The percentage of extraction of the depth of seam is 200 and width of gallery is 4.8 m.
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Answer & Solution
Answer: Option C
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20
The fans of 760 mm size, backward bladed, what should be the maximum allowable gap between the impeller and the impeller inlet.
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Answer & Solution
Answer: Option B
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