10. Heliuni is produced on commercial scale from
A. coke oven gas
B. air
C. natural gas
D. none of these
Ans: C
A. coke oven gas
B. air
C. natural gas
D. none of these
Ans: C
Electrical, Mechanical, Civil Engineering Objective Questions And Answers And Short Questions Answers For Exam, Tests and Interview Selections
No comments:
Post a Comment