MARK OUT ASS.- PART 2. - PRACTICAL GUAGE USE
NAME: Total marks 15 Mark:
Job HT 1 Feeler Gauging
Use a set of feeler gauges to measure the maximum and minimum gap between the nuts on the six test pieces your teacher will give you.
| Sample |
Minimum Gap |
Maximum Gap |
| A |
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| B |
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| C |
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| D |
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| E |
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| F |
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| G |
Job HT 2 Radius Gauging
Use metric and imperial radius gauges to measure the concave and convex radii on the test piece supplied by your teacher.
| Radius |
Actual Size Of Radius |
| A |
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| B |
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| C |
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| D |
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| E |
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| F |
Job HT 3 Screw Pitch Gauging
Using metric and imperial screw pitch gauges outside callipers and rule, find the pitch and outside diameter of the six sample screw threads supplied by your teacher.
| Sample |
Diameter |
Pitch (TPI or mm) |
| A |
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| B |
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| C |
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| D |
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| E |
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| F |
Job HT 4 Form Gauging
Using a screw cutting tool thread gauge having both 55° and 60° angles, check the four cutting tool samples provided by your teacher and complete the chart by placing the number of the sample next to the correct description.
| Sample No |
Description |
| Exactly 55° |
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| Exactly 60° |
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| Just less than 55° |
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| 60° but having one convex cutting edge |
Job HT 5 Thickness Gauging
Use a thickness gauge to measure the thickness of six sample pieces of sheet metal supplied by your teacher.
| Sample |
Thickness |
| A |
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| B |
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| C |
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| D |
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| E |
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| F |
JoB HT 6 Rule Measurements
Use a 150 mm rule to measure the seven dimensions to the nearest 0.5 mm on the stepped block.
| Letter |
Rule Size |
| A |
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| B |
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| C |
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| D |
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| E |
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| F |
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| G |