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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-4

Each section contains 100 MCQs on Drilling and Blasting .
21
Exhaust fan handles . . . . . . . . air.
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Answer & Solution
Answer: Option A
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22
Maximum velocities of ventilating air at man hoisting shafts and haulage roads . . . . . . . . other than conveyor roads.
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Answer & Solution
Answer: Option D
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23
Dust plan should be maintained in a scale of
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Answer: Option C
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24
Cooling chemical placed in cooling chamber of protomark IV apparatus is . . . . . . . .
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Answer & Solution
Answer: Option B
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25
The main purpose of seal at the floor level of fire stopping is
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Answer & Solution
Answer: Option B
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26
Hose mask permits more freedom of movement to the wear's head compared to . . . . . . . .
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Answer & Solution
Answer: Option C
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27
The pressure difference that would be produced by a mechanically perfect fan running under ideal conditions and connected to an evasee chimney of infinite height called . . . . . . . .
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Answer & Solution
Answer: Option A
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28
For how many years, the mining lease is given to a New company . . . . . . . .
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Answer & Solution
Answer: Option C
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29
Extraction of are from block formed during development.
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Answer & Solution
Answer: Option A
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30
The contra rotating fans can be coupled together in series for getting . . . . . . . .
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Answer & Solution
Answer: Option D
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