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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-3 section-8

Each section contains 100 MCQs on Drilling and Blasting .
21
The first barrier also called
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Answer & Solution
Answer: Option B
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22
Methane drainage was first attempted in which mine.
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Answer: Option A
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23
The type of apparatus used to administer pure O2 to an unconscious person or to whome breathing is feeble called . . . . . . . .
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Answer: Option D
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24
ANFO is used in
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Answer: Option B
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25
A roadway driven along dip of seam.
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Answer: Option E
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26
Margin of safety usually equals to . . . . . . . . of the depths in case 1 'O' Donhue's formula for shaft pillar.
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Answer: Option B
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27
It is the instrument used to testing continuity of an electric circuit for blasting
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Answer: Option B
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28
Crawler mounted rocker shovel is best for drifting a drift maximum grident of
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Answer: Option A
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29
If the gas mask or self rescuer used in atmosphere containing more than 2% CO what happens.
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Answer: Option D
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30
Natural ventilation pressure assists the fan ventilation pressure in case of . . . . . . . .
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Answer: Option A
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