| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.05 |
| Score | 0% | 61% |
When using a hacksaw, blades with __________ teeth are more appropriate for cutting thinner materials.
less |
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wider |
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thinner |
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more |
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.
Which of these saws is used with a miter box?
hacksaw |
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rip saw |
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back saw |
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crosscut saw |
A miter box utlizes a back saw (a fine toothed saw with a rigid strip of steel opposite its blade edge) to make cuts in wood at a specified angle.
Which of the following statements about solding is not true?
solder has a comparatively low melting point |
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soldering can only join metals |
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solder is an alloy of lead and tin |
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flux is used to clean surfaces before soldering |
Soldering is a process by which two or more items (typically metal) are joined together by melting a filler metal (solder) into the joint. An electrically powered soldering iron or soldering gun is used to melt the solder which is an alloy of lead and tin that has a melting point below the melting point of the items being joined. A chemical cleaning agent called flux is also used to clean the surfaces before soldering.
A welding rod provides:
the joining material for a weld |
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fuel for the welding torch |
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protection for the welder |
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stability for the welding torch |
The joining material for a weld is called a welding or filler rod and is available in a variety of diameters and alloys for different welding tasks.
Which of the following is the primary difference between pliers and pincers?
pliers squeeze, pincers cut or pull |
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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 |
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pliers are designed for large objects, pincers 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.