| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.98 |
| Score | 0% | 60% |
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.
This tool is a(n) __________.
inside micrometer |
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outside micrometer |
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outside caliper |
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inside caliper |
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 saws would you use if you're cutting wood across the grain?
crosscut saw |
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back saw |
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ripsaw |
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hacksaw |
Wood saws are categorized by their teeth shape and the number of teeth per inch (TPI). The higher the TPI of a saw the finer the cut it will make. Crosscut saws utilize knife-shaped teeth that cut across the grain of the wood while rip saws cut with the grain using chisel-shaped teeth that rip the wood cells apart as the cut is made. The kerf (slot) made by by a crosscut saw is much smoother than that made by a rip saw but a rip saw cuts much faster. Coping saws are a type of bow saw used to make detailed often curving cuts using replaceable blades with fine small teeth.
An arc-welder creates heat using:
high voltage electricity |
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oxyacetylene |
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propane |
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natural gas |
Welding is a high-temperature process that involves melting the base metals in the objects to be joined to fuse them together. A filler metal is used to provide additional material to make up a joint that, depending on the weld type, can be stronger than the base materials alone. Oxyacetylene welding is a welding process that uses a torch fueled with oxygen and acetylene gases. Electric-arc welding utlizes electric current in a safer welding process (it doesn't involve burning explosive gases) that enables a wide variety of specialized applications like stick, MIG (metal inert gas), and TIG (tungsten inert gas) welding.
Measuring tools provide a convenient and easy way to compare object dimensions against:
each other |
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perfection |
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a standard |
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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.