Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.The notch angle of the Izod impact test specimen is |
| 10� |
| 20� |
| 30� |
| 45� |
| 60�. |
2.Stress concentration is caused due to |
| variation in properties of material from point to point in a member |
| pitting at points or areas at which loads on a member are applied |
| abrupt change of section |
| all of the above |
| none of the above. |
3.Resilience of a material is important, when it is subjected to |
| combined loading |
| fatigue |
| thermal stresses |
| wear and tear |
| shock loading. |
4.Pick up wrong statement. Fatigue strength can be increased by |
| cold working |
| shot peening |
| grinding and lapping surface |
| hot working |
| using gradual changes of section. |
5.The property of a material which enables it to resist fracture due to high impact loads is known as |
| elasticity |
| endurance |
| strength |
| toughness |
| resilience. |
More Machine Design QUESTIONS AND ANSWERS available in next pages
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