| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.06 |
| Score | 0% | 61% |
Which of the following statements about solding is not true?
soldering can only join metals |
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flux is used to clean surfaces before soldering |
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solder has a comparatively low melting point |
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solder is an alloy of lead and tin |
Soldering is a process by which two or more items (typically metal) are joined together by melting a filler metal (solder) into the joint. An electrically powered soldering iron or soldering gun is used to melt the solder which is an alloy of lead and tin that has a melting point below the melting point of the items being joined. A chemical cleaning agent called flux is also used to clean the surfaces before soldering.
Which of the following is not an advantage of using a ratchet with a larger point-sized socket?
larger point sizes allow easier alignment |
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all of these are advantages of larger point sizes |
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larger point sizes allow greater toque to be applied |
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larger point sizes are stronger |
A ratchet (or socket wrench) is a wrench that applies torque in only one direction with a handle that can be moved back and forth without losing contact with the fastener. A ratchet uses variable attachments called sockets which come in a variety of drive sizes based on the size of the opening that attaches to the ratchet. Sockets with the same drive size will vary in the shape (six-point, twelve-point) and size of the nut opening that attaches to the fastener being tightened or loosened. Smaller point sized sockets are stronger and can apply greater torque while larger point sizes allow easier alignment.
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?
clamp |
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vise |
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pincers |
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pliers |
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?
claw hammer |
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rubber mallet |
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ball-peen 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.
Which type of screwdriver has a x-shaped indentation on the head?
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).