| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
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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pliers |
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clamp |
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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.
Which of the following nuts provide appendages that allow tightening and loosening by hand?
wing |
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cotter |
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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 loosen a bolt in a hard to reach location. Which of the following wrenches would best suit this task?
box-end |
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open-end |
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spanner |
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adjustable |
Wrenches are used to provide grip and mechanical advantage by applying torque to turn objects (or to keep them from turning). The longer the wrench, the more torque that can be applied. Wrench ends are available in two primary types, open-end and box-end. A box-end wrench encloses the bolt head and is useful when more torque is needed or to maintain contact in difficult to reach locations. An open-end wrench is designed for speedily loosening easier to reach fasteners. Wrenches that feature one open and one box end are called combination wrenches and adjustable wrenches feature an open end with an adjustable width.
Which of the following is the primary difference between pliers and pincers?
pincers squeeze, pliers cut or pull |
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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 |
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pincers are designed for large objects, pliers are designed for small objects |
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.
Screwdrivers are most broadly classified by their:
width |
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length |
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torque |
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tip |
Screwdrivers come in many different handle, shaft, and tip configurations for use in a wide variety of applications. Screwdrivers are classified by their tip which is shaped to fit a corresponding screw head. Common tips are slotted (flat) and Phillips (x-shaped).