| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
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 bit size maxes out at ¼" for woodworking |
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drill bits are primarily right-handed |
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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 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.
When cutting hard metals with a hacksaw you should choose a blade with __________ teeth per inch (TPI).
high |
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even |
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low |
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odd |
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.
The primary difference between a claw and a ball-peen hammer is which of the following?
their striking end |
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their non-striking end |
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their size |
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their handle shape |
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.
Which of the following is not a type of electric-arc welding?
oxyacetylene |
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TIG |
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stick |
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MIG |
Welding is a high-temperature process that involves melting the base metals in the objects to be joined to fuse them together. A filler metal is used to provide additional material to make up a joint that, depending on the weld type, can be stronger than the base materials alone. Oxyacetylene welding is a welding process that uses a torch fueled with oxygen and acetylene gases. Electric-arc welding utlizes electric current in a safer welding process (it doesn't involve burning explosive gases) that enables a wide variety of specialized applications like stick, MIG (metal inert gas), and TIG (tungsten inert gas) welding.