Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part2 : 11 to 15
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.In nitrided parts, the origins of the fatigue cracks will occur at |
| surface |
| just below the surface |
| within the core |
| could occur anywhere |
| none of the above. |
12.The ratio of endurance limit in shear to the endurance limit in flexure is |
| 0.33 |
| 0.4 |
| 0.5 |
| 0.55 |
| 0.6 |
13.The crest diameter of a screw thread is same as |
| major diameter |
| minor diameter |
| pitch diameter |
| core diameter |
| none of the above. |
14.Cold working |
| increases the fatigue strength |
| decreases the fatigue strength |
| has no influence on fatigue strength |
| alone has no influence on fatigue strength |
| none of the above. |
15.In most machine members, the damping capacity of the material should be |
| low |
| zero |
| high |
| could be anything |
| none of the above. |
More Machine Design QUESTIONS AND ANSWERS available in next pages
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