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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-3

Each section contains 100 MCQs on Drilling and Blasting .
31
Solid block of coal surrounded all sides by gallaries.
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Answer & Solution
Answer: Option A
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32
Surveyor mark reference points by plugs are fixed in roof after every . . . . . . . .m along the centre line.
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Answer: Option C
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33
The gradient and direction of drift maintained in the hands of surveyor the instrument is . . . . . . . .
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Answer & Solution
Answer: Option C
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34
Fires are practically unknown in . . . . . . . . coal mines.
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Answer & Solution
Answer: Option C
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35
Stone dust used for dusting, should not contain more than . . . . . . . .% silver.
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Answer & Solution
Answer: Option C
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36
Inclines are usually steeply dipping at
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Answer: Option A
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37
What is the nature of flow of air in mines?
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Answer & Solution
Answer: Option B
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38
How strong is the NONEL tube.
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Answer: Option C
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39
Haldene apparatus used for
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Answer: Option C
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40
In a mine a solid block of rock, which protects the inclines and shafts called as
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Answer & Solution
Answer: Option B
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