| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
Which of the following nuts prevent loosening via nylon in their threads?
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.
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?
pliers |
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clamp |
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pincers |
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vise |
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.
You're replacing the hubcaps on a car. Which of the following are you most likely to use?
ball-peen hammer |
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rubber mallet |
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claw hammer |
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wooden mallet |
A mallet is a hammer with a relatively large head, often made of rubber or wood. Both the size and material of the mallet head help prevent damage when striking more delicate surfaces.
You need to secure two pieces of wood together while the glue between the dries. Which of the following tools is most appropriate?
pincers |
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clamp |
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rubber band |
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pliers |
A clamp applies pressure to prevent two objects from moving relative to each other, for example, to keep to pieces of wood together while the glue between the dries. A clamp is commonly made of metal and shaped like the letter C with a perpendicular flat-edged plate providing variable pressure between it and the top of the C as a screw to which it is attached is tightened and released.
Which of the following is the primary difference between pliers and pincers?
pincers squeeze, pliers cut or pull |
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pincers are designed for large objects, pliers are designed for small objects |
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pliers are designed for large objects, pincers are designed for small objects |
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pliers squeeze, pincers cut or pull |
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.