| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.69 |
| Score | 0% | 74% |
A joint created by soldering is:
as strong as the original metal |
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weaker than a weld |
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stronger 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.
Which of the following statements about solding is not true?
solder is an alloy of lead and tin |
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solder has a comparatively low melting point |
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flux is used to clean surfaces before soldering |
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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.
Inside and outside micrometers measure inside and outside:
tolerances |
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angles |
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diameters |
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lengths |
Micrometers measure the diameter of cylindrical objects. Outside micrometers measure the external diameter of cylinders and inside micrometers measure the internal diameter of the cylinder's hole.
This tool is a(n) __________.
screwdriver |
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chisel |
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punch |
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lever |
A chisel has a long sharp edge and is used, often in conjunction with a hammer, for cutting. In woodworking, chisels are used to remove large sections of wood to create the initial shape of a design. In metalworking, chisels are used to remove waste metal when a smooth finish is not required.
Which of the following tools are you more likely to use when woodworking?
chisel |
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wrench |
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rivet |
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punch |
A chisel has a long sharp edge and is used, often in conjunction with a hammer, for cutting. In woodworking, chisels are used to remove large sections of wood to create the initial shape of a design. In metalworking, chisels are used to remove waste metal when a smooth finish is not required.