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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-6 section-5

Each section contains 100 MCQs on Drilling and Blasting .
51
In a mine all signalling bells, telephones exploders and relays are . . . . . . . . safe construction.
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Answer & Solution
Answer: Option D
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52
Air screw fan is more suited for low w.g and high . . . . . . . .
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
53
It is important factor of explosive when selecting an explosive for a perticular use.
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Answer & Solution
Answer: Option D
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54
The Origin of the formation of coal is . . . . . . . .
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Answer & Solution
Answer: Option A
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55
Air lock consists of . . . . . . . . doors.
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
56
All bright coals with 25% more V.M and 7 to 15% of moisture are prone to
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Answer & Solution
Answer: Option A
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57
The breathing bag of proto mark IV apparatus, which serves as . . . . . . . .
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Answer & Solution
Answer: Option C
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58
Every electrical shot-firing apparatus shall be so constructed that the firing circuit is made or broken automatically by means of which of the following?
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Answer & Solution
Answer: Option A
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59
Push botton type bye pass valve fitted in proto . . . . . . . .
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Answer & Solution
Answer: Option B
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60
Resistance of a road way is
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board