| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
The __________ is an initial shallow saw cut made as a guide to prevent the saw from slipping sideways on subsequent more powerful cuts.
kerf |
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channel |
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groove |
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guide |
When you start sawing by creating a kerf it will help prevent the saw from slipping sideways when you begin the power strokes that do most of the cutting.
Which of the following statements about solding is not true?
flux is used to clean surfaces before soldering |
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solder has a comparatively low melting point |
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soldering can only join metals |
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solder is an alloy of lead and tin |
Soldering is a process by which two or more items (typically metal) are joined together by melting a filler metal (solder) into the joint. An electrically powered soldering iron or soldering gun is used to melt the solder which is an alloy of lead and tin that has a melting point below the melting point of the items being joined. A chemical cleaning agent called flux is also used to clean the surfaces before soldering.
A joint created by soldering is:
as strong as the original metal |
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stronger than a weld |
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weaker than a weld |
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as strong as a weld |
A joint created by soldering is not as strong as a weld and not as strong as the original metal.
This tool is a(n) __________.
vernier caliper |
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outside micrometer |
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inside caliper |
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outside caliper |
Calipers are similar to micrometers in shape but instead of measuring distances, calipers are used to transfer distances between objects. An outside caliper is used to transfer outside dimensions while an inside caliper is used to transfer inside distances. A vernier caliper is an extremely precise caliper (down to \({1 \over 1000}\) inch) that allows measuring / transferring either inside or outside dimensions.
A joint created by welding is __________ the original metal.
harmful to |
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as strong or slightly weaker than |
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as strong or stronger than |
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weaker than |
The joint created by welding is as strong or stronger than the original metal.