MCQOPTIONS
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| 1. |
_ A screw is said to be over hauling screw, if the$? |
| A. | Friction angle is less than helix angle |
| B. | Friction angle is more than helix angle |
| C. | Friction angle is equal to helix angle |
| D. | Efficiency of screw is 100% |
| Answer» B. Friction angle is more than helix angle | |