Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part1 : 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.Rankine's theory of failure is applicable for following type of materials |
| brittle |
| ductile |
| elastic |
| plastic |
| tough. |
12.Which is correct statement ? Stress concentration in static loading is |
| very serious in brittle materials and less serious in ductile materials |
| very serious in ductile materials and less serious in brittle materials |
| equally serious in both types of materials |
| seriousness would depend on other factors |
| none of the above. |
13.The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be |
| same in both cases |
| 2 times more |
| 3 times more |
| 4 times more |
| unpredictable. |
14.Which of the following is not correct procedure to increase the fatigue limit |
| cold working |
| shot peening |
| surface decarburisation |
| under-stressing |
| all of the above. |
15.Plastic flow in ductile materials |
| increases the seriousness of static loading stress concentration |
| lessens the seriousness of static loading stress concentration |
| has no effect on it |
| depends on other considerations |
| none of the above. |
More Machine Design QUESTIONS AND ANSWERS available in next pages
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