| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.03 |
| Score | 0% | 61% |
Which type of screwdriver has a straight slot in the top?
nut driver |
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phillips |
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slotted |
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hex |
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).
A welding rod provides:
fuel for the welding torch |
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the joining material for a weld |
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protection for the welder |
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stability for the welding torch |
The joining material for a weld is called a welding or filler rod and is available in a variety of diameters and alloys for different welding tasks.
Which of the following is not an aspect of the mechanical advantage of pliers?
focus hand grip force |
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amplify hand grip force |
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change the direction of hand grip force |
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provide precision for manipulating small objects |
Pliers are designed to provide a mechanical advantage, allowing the force of the hand's grip to be amplified and focused with precision. Pliers also allow finer control over objects that are too small to be manipulated by the fingers alone. The standard configuration is combination pliers which provide a fixed maximum jaw width. Other styles include adjustable joint pliers that allow selecting jaw width, needle nose pliers for holding small objects in tight spaces and locking pliers that will lock in place to hold or clamp objects together.
Which of the following is not an advantage of using a tape measure over using a ruler?
easier storage |
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measure with more accuracy |
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measure in tighter spaces |
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measure longer distances |
Rulers are used to both measure distance and to draw straight lines. Tape measures are flexible rulers useful for measuring longer distances and in tighter spaces. Rulers and tape measures provide similarly accurate measurements.
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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adjustable |
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spanner |
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.