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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-8 section-5

Each section contains 100 MCQs on Drilling and Blasting .
71
Stratum is reffered as inclined if general inclination in between.
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Answer & Solution
Answer: Option A
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72
For every 1% of fire damp . . . . . . . .% of additional stone dust is required for efficient stone dusting.
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Answer & Solution
Answer: Option D
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73
Upper limit of methane air mixture.
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Answer & Solution
Answer: Option D
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74
The relation between pressure, resistance and quanity is expressed by the formula.
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Answer & Solution
Answer: Option C
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75
The amount of innert dust required to be mixed with the coal dust to make it non inflammable called
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Answer & Solution
Answer: Option C
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76
The breathing bag capacity of BG 174 . . . . . . . . in litres.
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Answer & Solution
Answer: Option D
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77
The ratio between the effective w.g and the theoritical w.g produced by fan with same dimensions and running at the same speed called . . . . . . . .
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Answer & Solution
Answer: Option C
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78
Which of the following explosive are recommended for deep hole blasting?
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Answer & Solution
Answer: Option A
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79
A detonating fuse detonated by a
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Answer: Option B
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80
Which of the following reagents do share around 75% in an explosive?
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Answer & Solution
Answer: Option A
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