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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-7 section-6

Each section contains 100 MCQs on Drilling and Blasting .
61
Each seam should have at least two out lets to surface separated by a minimum of . . . . . . . . meters at any point.
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
62
Number of cylinders of oxygen in PT 60 pulmotor.
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
63
The quantity survey can be made in gassy mines of II degree once in every . . . . . . . . days.
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
64
In smoke generator for measuring air velocity the time taken by the smoke to travel . . . . . . . . m recorded.
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
65
Primex is a mixture of
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Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
66
Pyrolusite is used in
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
67
The choice of site of an incline is limited to . . . . . . . . region.
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
68
Because of leakage the total quantity of air that reaches the working faces is only . . . . . . . . of that circulated by the main fan.
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
69
A higher NVP is produced in the workings in . . . . . . . .
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
70
The presence of angle of yaw for the animometer.
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board