ExamVeda
Login
Home

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-4 section-5

Each section contains 100 MCQs on Drilling and Blasting .
31
When contra rotating fan reversed, the fan produces nearly . . . . . . . .% of normal air quantity.
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
32
Thin seam the thickness of coal less than . . . . . . . .
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
33
Self contained breathing apparatus is a . . . . . . . . type apparatus.
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
34
If the atmosphere contain full O2 the apparatus used by weaver to protect himself from poisonous atmosphere containing CO and other toxic gases in small percentages called . . . . . . . .
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
35
Number of cylinders in the Novex reviving apparatus.
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
36
The deepest shaft in coal mine in this country is at . . . . . . . .
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
37
Mine air is coursed to the working places by the use of . . . . . . . .
Discuss
Answer & Solution
Answer: Option E
No explanation is given for this question. Let's Discuss on Board
38
Permitted explosives are always
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
39
The quantity of coal dust amounts to rise in air as thick cloud is . . . . . . . . of space.
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
40
To start a fire the conditions essential are
Discuss
Answer & Solution
Answer: Option E
No explanation is given for this question. Let's Discuss on Board