| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.03 |
| Score | 0% | 61% |
You need to secure a piece of wood while you're drilling a hole. Which of the following would be the most appropriate tool to use?
pincers |
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vise |
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pliers |
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clamp |
A vise is a clamp that is anchored to a work station and designed to hold material in place while it is being operated upon.
Which of the following statements about welding is not true?
welding is done at higher temperatures than soldering |
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no filler metal is required when welding |
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electric-arc welding is safer than oxyacetylene welding |
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a weld can often be stronger than the base materials alone |
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.
Which of the following nuts use a pin to lock the nut in place and prevent it from loosening?
cotter |
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wing |
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lock |
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slotted |
Wrenches are used with threaded fasteners like bolts and nuts. A bolt has external threads while a nut has internal threads and this thread pattern combination allows them to lock together and act as fasteners. Nuts come in a variety of configurations including wing nuts which provide appendages that allow tightening and loosening by hand, slotted nuts that use a cotter pin to lock the nut in place and prevent it from loosening, and lock nuts that also prevent loosening via nylon in their threads. Threads are identified by pitch which is the number of threads per inch.
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.
A __________ is driven by a motor and used to shape and form edge contours.
file |
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chisel |
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plane |
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router |
A router is a tool that a worker uses to rout (hollow out), shape, or contour an area in relatively hard material like wood or plastic.