Mechanical Engineering : Engineering Materials QUESTIONS AND ANSWERS :: part1 : 21 to 25
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.Malleability of a material can be defined as |
| ability to undergo large permanent deformations in compression |
| ability to recover its original form |
| ability to undergo large permanent deformations in tension |
| all of the above |
| none of the above. |
22.The ability of a material to resist softening at high temperature is known as |
| creep |
| hot tempering |
| hot hardness |
| fatigue |
| super hardening. |
23.Super conduction by metals is observed in the temperature range of |
| below 10�K |
| above 100�K |
| around 0�C |
| around 100�C |
| above 1000�C. |
24.The number of electrons in 1 cm3 of metal would be of the order of |
| 1010 |
| TO16 |
| 1022 |
| 1040 |
| 1052 |
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