| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.44 |
| Score | 0% | 69% |
When cutting hard metals with a hacksaw you should choose a blade with __________ teeth per inch (TPI).
high |
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even |
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odd |
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low |
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.
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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focus hand grip force |
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provide precision for manipulating small objects |
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amplify hand grip force |
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.
Screwdrivers are most broadly classified by their:
torque |
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length |
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tip |
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width |
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).
When using a hacksaw, blades with __________ teeth are more appropriate for cutting thinner materials.
thinner |
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less |
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wider |
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more |
A hacksaw has replaceable blades and is used to cut metal. The blade type is chosen based on the material that is to be cut. Blades with larger numbers of teeth per inch are more appropriate for cutting thinner materials.
Which of the following is used in metal work for shaping metal?
rivet hammer |
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ball peen hammer |
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mallet |
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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.