The platform
of the boiler where burning of fuel takes place is known as :
Lagging
Setting
Shell
Grate
Grate
A furnace
grate is provided in a steam boiler where burning of fuel takes place. It is
used for supporting the solid fuel in the furnace. Grate is so designed that it
can allow air in the solid fuel forcombustion.
Hence, the
correct option is (D).
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