Disadvantages of natural gas is?
A. Ash is produced
B. Amount fed to the furnace is hard to control
C. More expensive than coal and oil
D. Hard to mix with air
E. Storage space is required
Answer: C
Disadvantages of natural gas is?
A. Ash is produced
B. Amount fed to the furnace is hard to control
C. More expensive than coal and oil
D. Hard to mix with air
E. Storage space is required
Answer: C