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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-4 section-7

Each section contains 100 MCQs on Drilling and Blasting .
31
Air lock doors are required to be arranged where pressureon the door is
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Answer & Solution
Answer: Option D
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32
A part of mine below ground has as an indipendent intake air way commencing from a main intake air way, and an indipendent return terminating at main return air way called . . . . . . . .
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Answer & Solution
Answer: Option C
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33
Blasting off the solid was known as . . . . . . . .
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Answer & Solution
Answer: Option B
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34
Which of the following cut gives greater advance per round of blasting in tunnels or drifts of small area?
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Answer & Solution
Answer: Option D
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35
This is not a function of thermal emmissivity.
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Answer & Solution
Answer: Option B
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36
It is the ratio of the head at the operating point to Euler's head at zero capacity called . . . . . . . .
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Answer & Solution
Answer: Option C
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37
Vertical distance between two adjacent main levels, main horizone (or) main drives.
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Answer & Solution
Answer: Option A
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38
The time interval lapses between application of a source of ignition to fire damp and the actual moment of ignition of gas called . . . . . . . .
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Answer & Solution
Answer: Option A
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39
Soda acid extinguishers suitable only for quency.
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Answer & Solution
Answer: Option B
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40
Singareni coal field has become a government company in . . . . . . . .
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Answer & Solution
Answer: Option B
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