Burners inject air and fuel through a distribution system. The key components of a natural gas burner include (select all that apply):

a. dampers
b. impellers
c. spuds or spiders
d. drums


a. Correct. The key components of a natural gas burner include knockout pots, dampers, impellers, spuds, and igniters.
b. Correct. The key components of a natural gas burner include knockout pots, dampers, impellers, spuds, and igniters.
c. Correct. The key components of a natural gas burner include knockout pots, dampers, impellers, spuds, and igniters.
d. Incorrect. The key components of a natural gas burner include knockout pots, dampers, impellers, spuds, and igniters.

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