| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.98 |
| Score | 0% | 60% |
Which of the following nuts provide appendages that allow tightening and loosening by hand?
wing |
|
lock |
|
slotted |
|
cotter |
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.
Which of the following saws would you use if you're cutting wood along the grain?
crosscut saw |
|
hacksaw |
|
back saw |
|
ripsaw |
The ripsaw delivers maximum efficiency at cutting with or along the grain (ripping).
Which of the following statements about drill bits is not true?
drill bits are primarily left-handed |
|
drill bits are primarily right-handed |
|
drill bit size maxes out at ¼" for woodworking |
|
drill bit size maxes out at ½" for metalworking |
Drill bits remove material to create holes. They come in a variety of sizes, maxing out at ¼" for woodworking and ½" for metalworking. The majority of drill bits are right-handed which means they cut while rotating in a clockwise direction.
Which of the following statements about welding is not true?
no filler metal is required when welding |
|
electric-arc welding is safer than oxyacetylene welding |
|
a weld can often be stronger than the base materials alone |
|
welding is done at higher temperatures than soldering |
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 nuts use a pin to lock the nut in place and prevent it from loosening?
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.