| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.64 |
| Score | 0% | 53% |
This tool is a(n) __________.
outside caliper |
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inside micrometer |
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inside caliper |
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outside 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.
You've bored a large hole in a piece of wood to insert a doorknob. Which of these tools would you use to smooth the edges of the hole?
file |
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chisel |
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rasp |
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plane |
Files consist of diagonal rows of fine teeth and are used for fine finishing work to smooth, polish, or shape objects. Rasps are files with larger teeth that are used for coarse finishing work. Both files and rasps are designed to be inserted into detachable handles.
Which of the following statemements about chucks is not true?
a chuck is tightened and loosened using a chuck key |
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electric drills utilize a chuck to hold the drill bit |
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a chuck's size indicates the largest diameter drill bit that will fit |
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a chuck's size indicates the largest circumference drill bit that will fit |
Electric drills utilize a chuck to hold the drill bit. A chuck's size indicates the largest diameter drill bit that will fit. A chuck is tightened and loosened using a chuck key.
When cutting hard metals with a hacksaw you should choose a blade with __________ teeth per inch (TPI).
even |
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odd |
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high |
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low |
Blades with more and smaller teeth (high TPI) cut harder metals more effectively while blades with fewer and larger teeth (low TPI) cut softer metals more effectively.
Which of the following is the primary difference between pliers and pincers?
pliers squeeze, pincers cut or pull |
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pliers are designed for large objects, pincers are designed for small objects |
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pincers squeeze, pliers cut or pull |
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pincers are designed for large objects, pliers are designed for small objects |
Pincers provide a mechanical advantage that's used to cut, pinch or pull an object. The force applied to pincers is concentrated to a point or to an edge of the tool which allows pincers to be brought very close to a surface. Pincers are typically used for removing objects from a material to which they've previously been applied, for example, to pull nails from wood.