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| Q. |
What is the least count of clinometer which is used to check reading of column rotation used for setting of helix angles in universal micrometer? |
| A. | 1’ |
| B. | 2’ |
| C. | 3’ |
| D. | 4’ |
| Answer» A. 1’ | |
| Explanation: the permissible error which is allowed in the entire range of column rotation is ± 5′. a clinometer is used to check this which is of 1′ least count. the clinometer is put over column top. given inclination is further checked with clinometer. | |
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