GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
5. | In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of___? | |
A. | Transportation of coal | |
B. | Drying of coal | |
C. | Preheating the primary air | |
D. | Combustion of coal by supplying it around the burner | |