A. Electricity
B. Coke oven gas
C. Mixed gas
D. Both B. & C.
Correct Answer: D. Both B. & C. ✔
Last Updated: March 08, 2019
A. Electricity
B. Coke oven gas
C. Mixed gas
D. Both B. & C.
Correct Answer: D. Both B. & C. ✔
Last Updated: March 08, 2019