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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-7 section-4

Each section contains 100 MCQs on Drilling and Blasting .
61
Main purpose of lung governed valve.
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Answer: Option A
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62
The example for low density explosive
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Answer: Option C
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63
Which of the following is the oxidizing agent in an explosive?
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Answer: Option C
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64
Reaction between cellulose compounds with nitric acid yeilds.
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Answer: Option C
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65
Flame safety lamp is used for testing.
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Answer: Option C
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66
If in the mine gas emitted is a mixture of 80% CH4, 10% of H2, 10% of ethane, lower limit of explosibility of gas mixture will be
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Answer: Option C
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67
The fan which is more or less temporary installation in mines.
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Answer: Option A
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68
Access to a mineral deposit at a depth is by well called as
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Answer: Option A
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69
Trends now-a-days in approach mineral at a vertical depth of . . . . . . . . meters by inclines.
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Answer: Option B
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70
Drainage of water in a mine is effected by pumps which are designed depending on location as follows.
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Answer: Option A
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