| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
The primary difference between a claw and a ball-peen hammer is which of the following?
their size |
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their striking end |
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their non-striking end |
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their handle shape |
The most common striking tool is the hammer and the most common variety of hammer is the claw hammer. The claw hammer has two ends, one to drive nails and one to remove nails. Ball-peen hammers replace the claw with a rounded end that's used to round off the edges of metal pins and make gaskets.
Which of the following statements about solding is not true?
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 |
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flux is used to clean surfaces before soldering |
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.
Which of the following would provide the most accurate measure of the diameter of a solid cylinder?
outside micrometer |
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ruler |
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inside micrometer |
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tape measure |
Micrometers provide accuracy to the thousandths of an inch and come in outside and inside varieties. An outside micrometer is used to measure outside thickness, such as the diameter of a bolt, while an inside micrometer is used to measure the inside dimension of an object, such as the diameter of the hole of a nut or the width of a channel.
Which of the following is used in metal work for shaping metal?
claw hammer |
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ball peen hammer |
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mallet |
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rivet hammer |
Ball peen hammers are most commonly used in automotive repair. They have rounded heads and are used to drive punches and chisels.
These tools are called:
planes |
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files |
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rasps |
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chisels |
Wood chisels are used to shape or smooth wood surfaces. They come in a variety of widths and can be used with hand power or tapped with a mallet when deeper cuts need to be made.