Total No. of Pages:

1 7572

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DIPLOMA EXAMINATION, 2011 (MINING ENGINEERING) (PAPER-IV) 140. MINE SAFETY AND MAINTENANCE December]

[Time : 3 Hours Maximum : 100 Marks Answer any FIVE questions All questions carry equal marks

1.

(5×20=100)

a)

Enumerate the different types of noxions and poisonous gases in a mine.

(10)

b)

Brief on the sources of mine gases.

(10)

2.

Write short notes on any TWO of the following : a) Interference methanometer b) IR gas analyser c) BMI methanometer developed by MRDE d) Dust suppression methods in underground mines.

(2×10=20)

3.

Write on types of ventilation survey and explain any one in detail.

(20)

4.

a)

Point out the objectives of proper ventilation in underground mines.

(10)

b)

What are the various sources of heat in mines?

(10)

5.

Explain the causes, prevention and control of explosion in underground mines.

6.

What are the ascensional and descensional ventilation? Give their advantages in mine. (2×10=20)

7.

Discuss about the general lighting in mines and state the standard of lighting at various places in mines, as required by the circular of DGMS. (20)

8.

Discuss about the general provisions of mines and mineral regulation and development act. (20) ------------------

(20)

Annamalai University Diploma in Mining Engineering P-IV 2011 Mine ...

places in mines, as required by the circular of DGMS. (20). 8. Discuss about the general provisions of mines and mineral regulation and development act. (20). ------------------. 1. Page 1. Main menu. Displaying Annamalai University Diploma in Mining Engineering P-IV 2011 Mine Safety & Maintenance 7572.pdf. Page 1 of 1.

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