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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-5

Each section contains 100 MCQs on Drilling and Blasting .
21
The explosive which produce flame of long duration after blasting, burning particles remain contact with surround atmosphere
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Answer & Solution
Answer: Option A
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22
Permitted limit of speed of blade tips near the residential areas in axial flow fan . . . . . . . . in m/min.
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Answer & Solution
Answer: Option B
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23
Metallic powders in explosive composition act as . . . . . . . .
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Answer & Solution
Answer: Option C
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24
Which of the following agent is used to give sheath in a permitted sheathed explosive?
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Answer & Solution
Answer: Option C
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25
Cordtex fuse fired by . . . . . . . .
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Answer & Solution
Answer: Option B
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26
Hopacalite used as
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Answer & Solution
Answer: Option C
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27
The detonator inserted in explosive cartridge called
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Answer: Option B
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28
Surface screening plants and tipplers should be atleast . . . . . . . . away from the intake shaft.
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Answer & Solution
Answer: Option D
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29
It is the ability of coal dust to cause a flame to spread away from source of ignition called . . . . . . . .
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Answer & Solution
Answer: Option A
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30
The instrument to determine the distance travelled by air in a given time is . . . . . . . .
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Answer & Solution
Answer: Option D
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