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NAVEDTRA 14256
TOOLS AND THEIR USES CH 28,38
| Question | Answer |
|---|---|
| Which types of tools are used for cutting, smoothing off, or removing small amounts of metal, wood, plastic, or other material? | files |
| Every file has five parts: the point, edge, face or cutting teeth, heel or shoulder, and which other part? | tang |
| Which type of files are generally used for fast removal of material and where precision finish is not required? | American pattern file |
| Which type of files are used to sharpen mill or circular saws, and for draw-filling or finishing metals? | mill file |
| Which type of files are used to file in slots or keyways? | pillar file |
| Which type of files are used for filing circular openings or concave surfaces? | round file |
| Which type of files are used for filing rectangular slots and keyways? | square file |
| Taper files, or triangular files, are tapered toward the point on all three sides. They are used for filing saws having what degree angle teeth? | 60 degree |
| Which type of files are used for filing internal angles, and for cleaning out square corners? | three-square file |
| Which type of files are used for lock repair or for filing ward notches in keys? | warding file |
| Which type of files are generally used on aluminum and sheet steel and on flat or curved surfaces? | curved-tooth file |
| Which type of files are made to more exact measurements than American pattern files, and are primarily finishing tools used on all sorts of delicate and intricate parts? | Swiss pattern file |
| What are used for cutting internal threads in metal, plastics, or hard rubber? | taps |
| What are used for cutting external threads in metal, plastic, or hard rubber? | dies |
| What is used for cutting pipe fittings and in other places where extremely tight fits are required? | pipe tap |
| There are two types of boiler taps, straight and which other type? | tapered boiler tap |
| Straight boiler taps range in size for 1/2 inch to how many inches in diameter and have a chamfer for starting the tap? | 1.5 inches |
| Tapered boiler taps have tapered diameters which increase at a rate of what amount per foot? | 3/4 inch |
| What are used in boiler, locomotive, and railroad shops for tapping holes in the outer and inner plates or shells of boilers? | Staybolt taps |
| How many threads per inch does the mud or washout tap have? | 12 |
| What are used to restore bruised (rounded) or rusty threads on screws and bolts? | rethreading dies |
Created by:
nng7294
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