| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.07 |
| Score | 0% | 61% |
Inside and outside micrometers measure inside and outside:
lengths |
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diameters |
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tolerances |
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angles |
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.
Which of the following saws would you use if you're cutting wood along the grain?
hacksaw |
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back saw |
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crosscut saw |
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ripsaw |
The ripsaw delivers maximum efficiency at cutting with or along the grain (ripping).
What is a framing square used for?
marking lines at a right angle |
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measuring length around corners |
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measuring thickness and irregular shapes |
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ensuring that surfaces are level |
Rulers are used to both measure distance and to draw straight lines. Tape measures are flexible rulers made from cloth or metal and are useful for measuring longer distances and in tighter spaces. Both rulers and tape measures provide similar accuracy, commonly down to \({1 \over 16}\) or \({1 \over 32}\) inch. A steel framing square is made up of a shorter ruler (tongue) and a longer ruler (blade) that meet at a 90° (right) angle. A framing square is often used by carpenters when framing stairs and roofs.
Which of the following would provide the most accurate measure of the diameter of a solid cylinder?
tape measure |
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outside micrometer |
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ruler |
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inside micrometer |
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.
The primary difference between a claw and a ball-peen hammer is which of the following?
their handle shape |
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their non-striking end |
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their striking end |
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their size |
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.