Mechanical Engineering : Strength Of Materials 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 intensity of stress which causes unit strain is called |
| unit stress |
| bulk modulus |
| modulus of rigidity |
| modulus of elasticity |
| principal stress. |
2.The Young's modulus of a wire is defined as the stress which will increase the length of wire compared to its original length |
| half |
| same amount |
| double |
| one-fourth |
| four times. |
3.Percentage reduction of area in performing tensile test on cast iron may be of the order of |
| 50% |
| 25% |
| 0% |
| 15% |
| 60%. |
4.If the radius of wire stretched by a load is doubled, then its Young's modulus will be |
| doubled |
| halved |
| become four times |
| become one-fourth |
| remain unaffected. |
5.During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is |
| 4 tonnes/cm2 |
| 8 tonnes/cm2 |
| 16 tonnes/cm2 |
| 22 tonnes/cm2 |
| none of the above. |
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