____ is a gas that is produced by the ultraviolet radiation in the air in the vicinity of welding operations.
A. Argon
B. Phosgene
C. Ozone
D. Carbon dioxide
Answer: C
Trades & Technology
You might also like to view...
____ ponds are impounded behind an Earth embankment or dam
A) Embankment B) Excavated C) ?Incorporated D) Inclined
Trades & Technology
What was the Byzantine Empire's greatest contribution to flower compositions?
What will be an ideal response?
Trades & Technology
A fillet wed test assembly consists of what criteria?
A) Cut and etch B) Measuring the leg size C) A break test D) All of the above
Trades & Technology
Discuss the relationship between melt index and molecular weight
What will be an ideal response?
Trades & Technology