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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-2

Each section contains 100 MCQs on Drilling and Blasting .
21
The warning signal to indicate approaching . . . . . . . .
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Answer & Solution
Answer: Option C
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22
FOR in term of mining field means
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Answer & Solution
Answer: Option B
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23
A place is considered to be dangerous due to gas if it is . . . . . . . . or more.
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Answer & Solution
Answer: Option C
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24
The main disadvantage of run-round arrangement is . . . . . . . .
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Answer & Solution
Answer: Option B
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25
Calculate the w.g produced by a 3.2 m diameter fan running at 280 rpm and delivering 7500 m3/min. of air, if the blades are radial, density of air 1.2 kg/m3.
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Answer & Solution
Answer: Option B
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26
The value of natural ventilation pressure is not considerably affected by
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Answer & Solution
Answer: Option D
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27
Sealed canisters have shelf life in gas mask is . . . . . . . . years.
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Answer & Solution
Answer: Option B
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28
The fittings in fire stopping are
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Answer: Option D
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29
Smoke helmet made of tough . . . . . . . .
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Answer & Solution
Answer: Option B
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30
Drivage along apparent dip is . . . . . . . .
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Answer & Solution
Answer: Option E
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