MCQOPTIONS
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MCQOPTIONS
| 1. |
When a double threaded screw is made to turn 120 degrees about axis. How much the screw advances through axis? |
| A. | <sup>1</sup> <sub>3</sub> of pitch of helix |
| B. | <sup>1</sup> <sub>3</sub> of pitch of screw |
| C. | <sup>1</sup> <sub>4</sub> of pitch of helix |
| D. | The advancement is equal to pitch of helix. |
| Answer» B. <sup>1</sup> <sub>3</sub> of pitch of screw | |