| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.24 |
| Score | 0% | 65% |
Which of the following is not a type of nut?
slotted |
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cotter |
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wing |
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lock |
Wrenches are used with threaded fasteners like bolts and nuts. A bolt has external threads while a nut has internal threads and this thread pattern combination allows them to lock together and act as fasteners. Nuts come in a variety of configurations including wing nuts which provide appendages that allow tightening and loosening by hand, slotted nuts that use a cotter pin to lock the nut in place and prevent it from loosening, and lock nuts that also prevent loosening via nylon in their threads. Threads are identified by pitch which is the number of threads per inch.
Which of the following is used in metal work for shaping metal?
claw hammer |
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rivet hammer |
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mallet |
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ball peen hammer |
Ball peen hammers are most commonly used in automotive repair. They have rounded heads and are used to drive punches and chisels.
What is a micrometer used for?
ensuring that a surface is level |
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transferring dimensions between objects |
|
measuring length around corners |
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measuring the diameter of cylindrical objects with high precision |
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.
Measuring tools provide a convenient and easy way to compare object dimensions against:
perfection |
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a standard |
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each other |
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a drawing |
Measuring tools give easy access to the wide variety of standard dimensions that are used to categorize and classify objects.
This tool is a(n) __________.
screwdriver |
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awl |
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chisel |
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punch |
A punch is narrow and is used to drive objects like nails (pin punch) or for making guide marks for drilling (center punch) or patterns in wood or metal.