| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.09 |
| Score | 0% | 62% |
An arc-welder creates heat using:
high voltage electricity |
|
natural gas |
|
propane |
|
oxyacetylene |
Welding is a high-temperature process that involves melting the base metals in the objects to be joined to fuse them together. A filler metal is used to provide additional material to make up a joint that, depending on the weld type, can be stronger than the base materials alone. Oxyacetylene welding is a welding process that uses a torch fueled with oxygen and acetylene gases. Electric-arc welding utlizes electric current in a safer welding process (it doesn't involve burning explosive gases) that enables a wide variety of specialized applications like stick, MIG (metal inert gas), and TIG (tungsten inert gas) welding.
Which of the following saws would you use if you're cutting wood along the grain?
crosscut saw |
|
hacksaw |
|
ripsaw |
|
back saw |
The ripsaw delivers maximum efficiency at cutting with or along the grain (ripping).
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 |
|
clamp |
|
vise |
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.
Which of these saws is used with a miter box?
back saw |
|
rip saw |
|
crosscut saw |
|
hacksaw |
A miter box utlizes a back saw (a fine toothed saw with a rigid strip of steel opposite its blade edge) to make cuts in wood at a specified angle.
Which of the following nuts provide appendages that allow tightening and loosening by hand?
slotted |
|
lock |
|
cotter |
|
wing |
Wrenches are used with threaded fasteners like bolts and nuts. A bolt has external threads while a nut has internal threads and this thread pattern combination allows them to lock together and act as fasteners. Nuts come in a variety of configurations including wing nuts which provide appendages that allow tightening and loosening by hand, slotted nuts that use a cotter pin to lock the nut in place and prevent it from loosening, and lock nuts that also prevent loosening via nylon in their threads. Threads are identified by pitch which is the number of threads per inch.