| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.81 |
| Score | 0% | 56% |
Which of the following statements about welding is not true?
a weld can often be stronger than the base materials alone |
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electric-arc welding is safer than oxyacetylene welding |
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welding is done at higher temperatures than soldering |
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no filler metal is required when welding |
Welding is a high-temperature process that involves melting the base metals in the objects to be joined to fuse them together. A filler metal is used to provide additional material to make up a joint that, depending on the weld type, can be stronger than the base materials alone. Oxyacetylene welding is a welding process that uses a torch fueled with oxygen and acetylene gases. Electric-arc welding utlizes electric current in a safer welding process (it doesn't involve burning explosive gases) that enables a wide variety of specialized applications like stick, MIG (metal inert gas), and TIG (tungsten inert gas) welding.
A joint created by soldering is:
as strong as a weld |
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as strong as the original metal |
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weaker than a weld |
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stronger than a weld |
A joint created by soldering is not as strong as a weld and not as strong as the original metal.
Which of the following saws would you use if you're cutting wood along the grain?
ripsaw |
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hacksaw |
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crosscut saw |
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back saw |
The ripsaw delivers maximum efficiency at cutting with or along the grain (ripping).
Which of the following statements about an 8-point saw is not true?
an 8-point saw makes a rougher cut than a 12-point saw |
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an 8-point saw makes a finer cut than a 12-point saw |
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an 8-point saw makes a rougher cut than a 6-point saw |
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an 8-point saw has eight teeth per inch |
Saw blades are described by the number of teeth per inch (TPI). The higher the TPI of a saw the finer the cut it will make.
Which of the following is used in metal work for shaping metal?
rivet hammer |
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ball peen hammer |
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mallet |
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claw hammer |
Ball peen hammers are most commonly used in automotive repair. They have rounded heads and are used to drive punches and chisels.