Question

The by – pass factor of a single cooling coil in an air – conditioner is 0.8. what will be the by – pass factor if three such cooling coils, with the same apparatus dew point, are kept one behind the other?

1. 0.226
2. 0.343
3. 0.102
4. 0.512

Answer 1

Correct Answer - Option 4 : 0.512

Concept:

By pass factor for N no. of coils is given by:

BPF = XN

Calculation:

Given:

By Pass Factor = 0.8, N = 3

Now,

∴ BPF = XN 

∴ BPF = 0.83 

∴ BPF = 0.512