| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.93 |
| Score | 0% | 59% |
Which of the following is the primary difference between pliers and pincers?
pliers squeeze, pincers cut or pull |
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pincers are designed for large objects, pliers are designed for small objects |
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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 |
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.
Which of the following would provide the most accurate measure of the diameter of a solid cylinder?
ruler |
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tape measure |
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outside micrometer |
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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.
Which of the following is not an advantage of using a ratchet with a larger point-sized socket?
all of these are advantages of larger point sizes |
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larger point sizes allow easier alignment |
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larger point sizes allow greater toque to be applied |
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larger point sizes are stronger |
A ratchet (or socket wrench) is a wrench that applies torque in only one direction with a handle that can be moved back and forth without losing contact with the fastener. A ratchet uses variable attachments called sockets which come in a variety of drive sizes based on the size of the opening that attaches to the ratchet. Sockets with the same drive size will vary in the shape (six-point, twelve-point) and size of the nut opening that attaches to the fastener being tightened or loosened. Smaller point sized sockets are stronger and can apply greater torque while larger point sizes allow easier alignment.
Which of the following saws is not good for cutting wood?
ripsaw |
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back saw |
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crosscut saw |
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hacksaw |
A hacksaw has replaceable blades and is used to cut metal. The blade type is chosen based on the material that is to be cut. Blades with larger numbers of teeth per inch are more appropriate for cutting thinner materials.
What is a micrometer used for?
measuring the diameter of cylindrical objects with high precision |
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measuring length around corners |
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ensuring that a surface is level |
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transferring dimensions between objects |
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.