Railways
NTPC (Technical Ability)
Vibration Analysis
Question Bank
Vibration Analysis
question_answer
The equation \[\phi =\frac{{{p}_{v}}}{ps}\] is used to calculate the \[({{p}_{v}}=\] partial pressure of water vapour in moist air at a given temperature \[{{p}_{s}}=\] saturation pressure of water vapour at the same temperature)