| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.23 |
| Score | 0% | 65% |
When compared to drilling, boring makes __________ holes.
rougher |
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smaller |
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larger |
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smoother |
Drilling is the process of making small holes in wood or metal while boring is the process of making larger holes.
What is a caliper used for?
making perfectly vertical lines |
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transferring distances between objects |
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measuring thickness and irregular shapes |
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ensuring that surfaces are level |
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.
as strong or slightly weaker than |
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as strong or stronger than |
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harmful to |
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weaker than |
The joint created by welding is as strong or stronger than the original metal.
Which of the following statements about drill bits is not true?
drill bit size maxes out at ½" for metalworking |
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drill bits are primarily left-handed |
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drill bits are primarily right-handed |
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drill bit size maxes out at ¼" for woodworking |
Drill bits remove material to create holes. They come in a variety of sizes, maxing out at ¼" for woodworking and ½" for metalworking. The majority of drill bits are right-handed which means they cut while rotating in a clockwise direction.
Which of the following statements about solding is not true?
solder is an alloy of lead and tin |
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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 |
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.