| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.94 |
| Score | 0% | 59% |
What is a caliper used for?
measuring thickness and irregular shapes |
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making perfectly vertical lines |
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transferring distances between objects |
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ensuring that surfaces are level |
Calipers are similar to micrometers in shape but instead of measuring distances, calipers are used to transfer distances between objects. An outside caliper is used to transfer outside dimensions while an inside caliper is used to transfer inside distances. A vernier caliper is an extremely precise caliper (down to \({1 \over 1000}\) inch) that allows measuring / transferring either inside or outside dimensions.
Which of the following is used in metal work for shaping metal?
ball peen hammer |
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claw hammer |
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rivet hammer |
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mallet |
Ball peen hammers are most commonly used in automotive repair. They have rounded heads and are used to drive punches and chisels.
Which of the following statemements about chucks is not true?
a chuck's size indicates the largest circumference drill bit that will fit |
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a chuck's size indicates the largest diameter drill bit that will fit |
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a chuck is tightened and loosened using a chuck key |
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electric drills utilize a chuck to hold the drill bit |
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.
The primary difference between a claw and a ball-peen hammer is which of the following?
their handle shape |
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their size |
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their non-striking end |
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their striking end |
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 saws would you use if you're cutting wood across the grain?
ripsaw |
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hacksaw |
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crosscut saw |
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back saw |
Wood saws are categorized by their teeth shape and the number of teeth per inch (TPI). The higher the TPI of a saw the finer the cut it will make. Crosscut saws utilize knife-shaped teeth that cut across the grain of the wood while rip saws cut with the grain using chisel-shaped teeth that rip the wood cells apart as the cut is made. The kerf (slot) made by by a crosscut saw is much smoother than that made by a rip saw but a rip saw cuts much faster. Coping saws are a type of bow saw used to make detailed often curving cuts using replaceable blades with fine small teeth.