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Welding Quiz

Answer the four questions by clicking the appropriate radio buttons. Then check your answers below.



red cylinder, liquified contents, valve guard 1. Which description of the cylinder is correct?

Acetylene with right hand thread
Propane with left hand thread
Acetylene with left hand thread
Propane with right hand thread




Acetylene 2. After being transported in the horizontal position, how long, in minutes must a cylinder containing Dissolved Acetylene be allowed to stand upright before being used?

5 minutes
10 minutes
15 minutes
30 minutes




black cylinder, right hand thread 3. What is in this cylinder?

Carbon Dioxide
Nitrogen
Propane
Oxygen
Hydrogen




4. In Oxy-Acetylene welding, what thickness of material is rightward welding most suitable for?

Rightward Welding

Less than 3 mm thick
Greater than 3 mm thick










See also another short quiz.