| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.21 |
| Score | 0% | 64% |
When compared to drilling, boring makes __________ holes.
smoother |
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larger |
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smaller |
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rougher |
Drilling is the process of making small holes in wood or metal while boring is the process of making larger holes.
Which of the following statemements about chucks is not true?
a chuck is tightened and loosened using a chuck key |
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a chuck's size indicates the largest diameter drill bit that will fit |
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a chuck's size indicates the largest circumference drill bit that will fit |
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electric drills utilize a chuck to hold the drill bit |
Electric drills utilize a chuck to hold the drill bit. A chuck's size indicates the largest diameter drill bit that will fit. A chuck is tightened and loosened using a chuck key.
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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claw hammer |
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mallet |
Ball peen hammers are most commonly used in automotive repair. They have rounded heads and are used to drive punches and chisels.
Which of the following nuts prevent loosening via nylon in their threads?
wing |
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slotted |
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cotter |
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lock |
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.
A welding rod provides:
stability for the welding torch |
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fuel for the welding torch |
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the joining material for a weld |
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protection for the welder |
The joining material for a weld is called a welding or filler rod and is available in a variety of diameters and alloys for different welding tasks.