| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.23 |
| Score | 0% | 65% |
When cutting hard metals with a hacksaw you should choose a blade with __________ teeth per inch (TPI).
low |
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high |
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odd |
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even |
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 statements about drill bits is not true?
drill bit size maxes out at ½" for metalworking |
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drill bits are primarily right-handed |
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drill bit size maxes out at ¼" for woodworking |
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drill bits are primarily left-handed |
Drill bits remove material to create holes. They come in a variety of sizes, maxing out at ¼" for woodworking and ½" for metalworking. The majority of drill bits are right-handed which means they cut while rotating in a clockwise direction.
Which of the following is the primary difference between pliers and pincers?
pincers are designed for large objects, pliers are designed for small objects |
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pincers squeeze, pliers cut or pull |
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pliers squeeze, pincers cut or pull |
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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.
A welding rod provides:
fuel for the welding torch |
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the joining material for a weld |
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stability for the welding torch |
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protection for the welder |
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 not a common pliers configuration?
needle nose |
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adjustable joint |
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locking |
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wire |
Pliers are designed to provide a mechanical advantage, allowing the force of the hand's grip to be amplified and focused with precision. Pliers also allow finer control over objects that are too small to be manipulated by the fingers alone. The standard configuration is combination pliers which provide a fixed maximum jaw width. Other styles include adjustable joint pliers that allow selecting jaw width, needle nose pliers for holding small objects in tight spaces and locking pliers that will lock in place to hold or clamp objects together.