| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.82 |
| Score | 0% | 56% |
Which of the following is used in metal work for shaping metal?
ball peen hammer |
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mallet |
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rivet hammer |
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claw hammer |
Ball peen hammers are most commonly used in automotive repair. They have rounded heads and are used to drive punches and chisels.
Which of the following is not an aspect of the mechanical advantage of pliers?
change the direction of hand grip force |
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amplify hand grip force |
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focus 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.
You are using a hacksaw to cut a Class 8 bolt. What is the most appropriate TPI for your saw blade?
18 TPI |
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8 TPI |
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10 TPI |
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2 TPI |
A Class 8 bolt is made of very hard metal and larger TPI saw blades are most appropriate for very hard metals.
The __________ is an initial shallow saw cut made as a guide to prevent the saw from slipping sideways on subsequent more powerful cuts.
channel |
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groove |
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guide |
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kerf |
When you start sawing by creating a kerf it will help prevent the saw from slipping sideways when you begin the power strokes that do most of the cutting.
A joint created by soldering is:
stronger than a weld |
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as strong as a weld |
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as strong as the original metal |
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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.