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