11. The basic principle behind the pressure survey in a mine is depend as . . . . . . . . theorem.
12. What is the characteristic of velocities considered in Euler's equation.
13. If the electricity is used the motors, switch gears and transformers should be provided with . . . . . . . . enclosures.
14. Horizontal roadway driven within ore body between h/w and f/w right angles to drift.
15. The minimum air quantity required at all working places in B/P is.
16. Small magzines in mine premises are accorded the licence in the form.
17. The plane of rotation of the vanes of anemometer should be as near as
18. When explosive charges in a hole is separated by air gaps in stead of stemming materials then the process is known as
19. To deal with the misfires a relieving hole shall be so placed that at no point shall it be nearer than "A" cm from the misfired hole. A is given by
20. The isolation stopping in I and II degree gassy coal mine should have minimum thickness of
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- Drilling and Blasting - Section 2
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- Drilling and Blasting - Section 5
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- Drilling and Blasting - Section 7
- Drilling and Blasting - Section 8
- Drilling and Blasting - Section 9
- Drilling and Blasting - Section 10