Question

What is wet bulb depression?

(a) Difference between dry bulb temperature and wet bulb temperature at any point

(b) Difference between relative humidity and wet bulb temperature at any point

(c) Difference between dew point and wet bulb temperature at any point

(d) Difference between dry bulb temperature and dew point temperature at any point

The question was posed to me during an interview for a job.

My question is from Drying in chapter Drying of Food Processing Unit Operations

Answer 1

The correct choice is (a) Difference between dry bulb temperature and wet bulb temperature at any point

The explanation: The wet bulb depression is defined as the difference between dry bulb temperature and wet bulb temperature at any point. It indicates relative humidity of the air.