Relative humidity lesson

Questions and Answers

1) What is the difference between high and low relative humidity?

- High RH : (air is saturated with water vapour, may rain soon)
- Low RH : (air has very little water vapour, feels dry) 


2) How is relative humidity calculated?
- Take the wet and dry bulb temperature readings 
- Find the wet bulb depression (Dry minus wet )
- Match it on the RH table
- Answer is in %

3) What is the relationship between RH and temp?
- Inverse
- When RH increase, temperature decrease
- When RH decrease, temperature increase