Mine Ventilation - Study Mode
[#296] The O 2 is lighter than air
Correct Answer
(B) False
[#297] A three digit LCD indicates oxygen concentration within the range of 0 to . . . . . . . .
Correct Answer
(B) 30
[#298] Air samples and temperature readings should be taken once in . . . . . . . . days.
Correct Answer
(D) 30
[#299] If the barometric pressure at a place is 'h' mm of mercury, convert into SI units.
Correct Answer
(A) $$frac{{101325}}{{760}} imes h,N/{m^2}$$
[#300] Four psychrometric processes P, Q, R and S are shown in the psychrometric chart below. These processes respectively represent
Correct Answer
(D) Humidification, Sensible heating, Dehumidification, Sensible cooling