What is the purpose of secondary fan‚Äö√Ñ√∂‚àö√ë‚àö¬•s air in under feed system?$#

To clear the ash from the upper beds

To support gases coming out of fuel bed

To maintain constant pressure in system

To support combustion of system

What is the purpose of secondary fan‚Äö√Ñ√∂‚àö√ë‚�

1.	What is the purpose of secondary fan‚Äö√Ñ√∂‚àö√ë‚àö¬•s air in under feed system?$#
A.	To support gases coming out of fuel bed
B.	To clear the ash from the upper beds
C.	To maintain constant pressure in system
D.	To support combustion of system
Answer» B. To clear the ash from the upper beds