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Oxyacetylene Cutting and Welding Unit Test

1. You notice that a co-worker is using an acetylene pressure that is too high.  You should advise the co-worker to:
   1. Adjust the acetylene on the torch needle valve
   2. Turn the acetylene adjusting screw counter-clockwise to decrease pressure
   3. Quit welding until the pressure automatically adjusts itself
   4. Ignore the pressure and it will go down on its own
2. You have installed the regulator properly and now want to open the cylinder valve, but first you should:
   1. Stand with the regulator away from you
   2. Drink a soda
   3. Stand with the cylinder between you and the regulator
   4. Stand on the right of the cylinder
3. John is adjusting the acetylene pressure and he knows that there was something from agriculture mechanics he was supposed to remember about the acetylene pressure but he cannot remember.  When he asked his co-worker, he found out that the rule of thumb was:
   1. Do not compress acetylene at a pressure higher than 15 psi
   2. Do not compress acetylene at a pressure lower than 15 psi
   3. Do not compress acetylene at a pressure higher than 7 psi
   4. Do not compress acetylene at a pressure lower than 7 psi
4. When hoses are attached to regulators and to a torch handle, you should use:
   1. A cylinder wrench
   2. An open end wrench
   3. An adjustable wrench
   4. A pipe wrench
5. Joe is in the process of shutting down his oxyacetylene torch.  He wants to bleed the lines but is unsure what he is supposed to do first.  What is the fist step to bleeding the lines?
   1. Open the valves on the torch and then close them after the gauges reach zero
   2. Close the valves on the torch
   3. Cut the lines
   4. All of the above
6. Jack plans on using the school’s oxyacetylene torch for the purpose of brazing his metal art project.  What does the term brazing mean?
   1. the joining of metals by adding bronze filler
   2. the burning of your name or other symbol on the side of the metal
   3. browning the metal to having a rustic look
   4. burning the metal
7. Mr. Sanchez is in the process of looking for gas cylinders for his agriculture mechanics class for lessons on cutting and welding metal.  However, he is unsure what type of gas he needs and where it would be located.  Help Mr. Sanchez by identifying the most widely used gas for cutting and welding metal.
   1. Propane
   2. Acetylene
   3. Propylene
   4. Natural Gas
8. As you crack open the acetylene torch valve to ignite the flame, you use this tool to ignite a flame at the end of the torch.
   1. Match
   2. Striker
   3. Sparkler
   4. Led tip
9. Jonah knelt on the concrete floor on the shop with his cutting goggles in place.  He was positioned to cut a piece of metal for the class project, when suddenly Jaime stopped him.  What rule was Jonah violating that would have prevented him from using the oxyacetylene torch correctly?
   1. He did not need cutting goggles for cutting this piece of metal
   2. He was not cutting the right piece of metal for the project
   3. He should not be cutting metal over a concrete surface
   4. Jaime did not want Jonah to cut that piece of metal because he wanted to do it himself
10. Greg wanted to get some extra credit for his shop class by bringing in some hoses for the oxyacetylene torch/welder.  He brought in two black hoses for the torch/welder but was disappointed when he was told that he would not be receiving extra credit.  Why did he not get his extra credit?
    1. The teacher was just teasing when he said that he would give extra credit
    2. Greg’s hoses were not long enough
    3. For safety reasons, the hoses needed to be colored coded for each gas

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