Mine Ventilation - Study Mode
[#106] The main fan operating point of a ventilation system is shown in the figure below. If an NPV of 200 Pa assists the ventilation system, the resultant pressure (Pa) and quantity (m 3 ) generated by the
Correct Answer
500, 681
[#107] The excess weight of air in D.C air column which gives rise to . . . . . . . .
Correct Answer
(C) NVP
[#108] Interferometers called as
Correct Answer
(C) interference methano meter
[#109] High methane liberation is associated with coal having high.
Correct Answer
(D) void ratio
[#110] The smell of nitrous fumes
Correct Answer
(D) choking