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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-5 section-7

Each section contains 100 MCQs on Drilling and Blasting .
41
Non cap sensitive explosive is also known as
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Answer & Solution
Answer: Option B
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42
It is the rate at which the detonation wave passes through a column of explosive
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Answer & Solution
Answer: Option B
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43
Handwheel type bye pass valve fitted in proto . . . . . . . .
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Answer & Solution
Answer: Option A
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44
Which of the following has poor water resistant property?
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Answer: Option A
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45
The Type booster occupy only 1-2% of total explosive charge
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Answer: Option B
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46
Strength of any weight of explosive compared with the same weight of . . . . . . . .
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Answer: Option A
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47
The temperature of the sealed of fire area is increasing or decreasing observed by means of . . . . . . . .
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Answer: Option B
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48
A person inhales . . . . . . . . l/min oud O2 consumption l/min . . . . . . . . during rest.
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Answer: Option A
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49
The reversal prevents the smoke and fumes from reaching the working.
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Answer: Option B
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50
In which of the following case the conditions requiring use of permitted explosives has not been made mandatory?
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Answer & Solution
Answer: Option C
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