| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
Which of the following saws would you use if you're cutting wood across the grain?
crosscut saw |
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hacksaw |
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ripsaw |
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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.
When using a hacksaw, blades with __________ teeth are more appropriate for cutting thinner materials.
more |
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thinner |
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wider |
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less |
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.
A joint created by soldering is:
as strong as the original metal |
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as strong as a weld |
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stronger than a weld |
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weaker than a weld |
A joint created by soldering is not as strong as a weld and not as strong as the original metal.
Which of the following determines whether a socket can be used with a particular ratchet?
the drive size |
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the point size |
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the socket size |
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the drive circumference |
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 would be used to make a drilling guide mark in a sheet of metal?
screwdriver |
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chisel |
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pin punch |
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center punch |
A punch is narrow and is used to drive objects like nails (pin punch) or for making guide marks for drilling (center punch) or patterns in wood or metal.