| 1. | The minimum measurement that can be correctly read with a vernier caliper is called ? | |
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main scale reading
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zero reading
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least count
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all of these
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Report Question| 2. | Which of the following is a basic unit in the CGS system ? | |
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Gram
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Foot
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Metre
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Pound
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| 3. | Work is usually required to be held in a vertical positions for laying out. For this purpose this is clamped to ? | |
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machine bed
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v-block
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surface plate
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an angle plate
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| 4. | What is the material of surface plate ? | |
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Granite
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MS
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TS
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HCS
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| 5. | Who Inverted universal standard time ? | |
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Sandford Fleming
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enrico fermi
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adolf gaston eugen fick
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benoit fourneyron
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| 6. | An out side micrometer has a positive error. The correct reading can be taken by ? | |
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deducting the positive error in the actual reading
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adding the positive error in the actual reading
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deducting twice twice the negative error in the actual reading
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adding twice twice the negative error in the actual reading
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| 7. | Which one of the following instruments is used to measure accurately the angle of taper ? | |
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taper gauge
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vernier bavel protector
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bavel protector
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bavel gauge
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| 8. | If the zero graduation of the thimble division of an out side micrometer is above the datum line, when the measuring faces of the micrometer are in correct, the error is ? | |
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negative error
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positive error
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zero error
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none
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| 9. | A micrometer has a negative error of 0.03 mm. What is the correct reading when the micrometer measure 23.51 mm ? | |
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23.51 mm
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23.00 mm
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23.53 mm
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23.49 mm
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| 10. | The tooth thickness of rack is measured by ? | |
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flange micrometer
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gear tester
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universal vernier caliper
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gear tooth caliper
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