Drilling and Blasting MCQs Questions & Answers

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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-4

Each section contains 100 MCQs on Drilling and Blasting .

What is meant by vane efficiency.

A) The ratio of actual head to the theoritical head B) The ratio of the input head to Eulers head C) The ratio of input head to input head D) The ratio of total head developed to the velocity head

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Do not allow burning of fire inside a mine [non coal mine] and within . . . . . . . .m of an intake.

A) 5 B) 10 C) 15 D) 20

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which drivages are generally safer.

A) Shaft B) Incline C) Pit D) None

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Portable fire extinguishers are . . . . . . . .

A) CTC B) BCE C) Foam D) Dry powder E) All of above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Wearer of proto mark IV apparatus can not . . . . . . . . with among brigade members.

A) Speak B) Laugh C) Smell D) All of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

German type air lock constructed.

A) Side the banking level B) Above the banking level C) Below the banking level D) All of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Brine is a solution of . . . . . . . .

A) Calcium chloride B) Sodium chloride C) Calsium selicate D) Potasium selicate

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The law related to quantity air fan speed is . . . . . . . .

A) $$Q \propto N$$ B) $$Q \propto V$$ C) $$Q \propto \frac{1}{V}$$ D) $$Q \propto \frac{1}{N}$$

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

BCF fire extinguishers use for quenching . . . . . . . . fires.

A) Combustables B) Liquid C) Electronic equipment D) All of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The freezing point of nitroglycerin.

A) 4°C B) 10°C C) 12°C D) 13°C

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Drilling and Blasting MCQs Questions & Answers | Mining Engineering