MCQOPTIONS
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MCQOPTIONS
| 1. |
The radius of a friction circle for a shaft of radius r rotating inside a bearing is |
| A. | r sin φ |
| B. | r cos φ |
| C. | r tan φ |
| D. | r cot φ |
| Answer» B. r cos ‚âà√¨‚àö√∫ | |