In Height pressure natural circulation boilers the flue gases flow through the following boiler accessories:
1. Superheated 2. Air- preheater
3. Economizer 4. I.D fan
The correct sequence of the flow of flue gases though these boiler accessories is
a) 1,3,4,2 b) 3,1,4,2
c) 3,1,2,4 d) 1,3,2,4