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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-7

Each section contains 100 MCQs on Drilling and Blasting .
71
A roadway driven along strike of seam.
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Answer & Solution
Answer: Option B
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72
If after charging a shot-hole inftammable gas is found in any place within . . . . . . . . radius no shot hole shall be fired until the place is cleared of gas. Fill up the blanks.
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Answer & Solution
Answer: Option B
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73
A second barrier (heavy type) should be placed further outbye at . . . . . . . .m from the face.
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Answer & Solution
Answer: Option B
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74
The reviving apparatus usually the rate of flow ranging from . . . . . . . . lits/mins according to the rate and depth of patient's breathing.
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Answer & Solution
Answer: Option C
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75
Surface temperature influence on natural ventilation will be less or negligible in which situation.
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Answer & Solution
Answer: Option D
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76
The gradient line is marked on the side by red lead . . . . . . . . of drift.
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Answer & Solution
Answer: Option B
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77
Gelling agent in slurry explosive is
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Answer: Option B
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78
Generally inclines touch a coal seam at a vertical depth of . . . . . . . . meters in singareni group of mines:
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Answer & Solution
Answer: Option C
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79
It is required in all inclined mouth, the safety contravence is . . . . . . . .
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Answer & Solution
Answer: Option C
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80
Which of the following is treated as base explosive?
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Answer: Option D
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