Oxy - Acetylene Welding ( OAW )

1. Oxy-acetylene produces a flame temperture hotter than arc welding.

A. True.

B. False.

2. Acetylene fittings are always identified by the color red.

A. True.

B. False.

3. Clyinder gas bottles can be identified by.

A. the color of the bottle.

B. by the size of the bottle.

C. by the lable on the bottle.

D. all of the above.

4. When valves / fittings squeak or stick, they should be?

A. lubricated.

B. changed or repaired.

C. over tightened just a little.

D. any of the above.

5. Pure acetylene is oderless.

A. True.

B. False.

6. The quantity of gas in a cylinder is determined by.

A. the temperture of the cylinder.

B. the cylinder pressure gage reading.

C. weighing the cylinder.

D. all of the above.

7. Which flame produces the highest temperture.

A. carburized.

B. neutral.

C. oxidized.

D. reducing.

8. To weld thicker plate, you should.

A. change to a larger tip size.

B. weld slower.

C. increase the gas pressures.

D. any of the above.

9. Another term for flashback is backfire (they mean the same.)

A. True.

B. False.

10. An advantage of gas welding may be.

A. travel speed.

B. deposition rate.

C. weld ductility.

D. none of the above.

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