| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.83 |
| Score | 0% | 57% |
This tool is a(n) __________.
outside caliper |
|
inside caliper |
|
vernier caliper |
|
inside micrometer |
Calipers are similar to micrometers in shape but instead of measuring distances, calipers are used to transfer distances between objects. An outside caliper is used to transfer outside dimensions while an inside caliper is used to transfer inside distances. A vernier caliper is an extremely precise caliper (down to \({1 \over 1000}\) inch) that allows measuring / transferring either inside or outside dimensions.
Which of the following statements about solding is not true?
solder has a comparatively low melting point |
|
flux is used to clean surfaces before soldering |
|
solder is an alloy of lead and tin |
|
soldering can only join metals |
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 the primary difference between pliers and pincers?
pliers squeeze, pincers cut or pull |
|
pincers squeeze, pliers cut or pull |
|
pliers are designed for large objects, pincers are designed for small objects |
|
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.
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?
pliers |
|
pincers |
|
vise |
|
clamp |
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.
Measuring tools provide a convenient and easy way to compare object dimensions against:
each other |
|
a drawing |
|
a standard |
|
perfection |
Measuring tools give easy access to the wide variety of standard dimensions that are used to categorize and classify objects.