Mechanical Engineering : Engineering Materials QUESTIONS AND ANSWERS :: part8 : 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.Age-hardening is related with |
| stainless steel |
| gun metal |
| german silver |
| duralumin |
| cast iron. |
12.Lead is poured into the joint between two pipes. These pipes may be made of |
| cast iron |
| vitrified clay |
| asbestos cement |
| concrete |
| mild steel. |
13.Foundry crucible is made of |
| mild steel |
| german silver |
| lead |
| cast iron |
| graphite. |
14.Recrystallisation temperature can belowered by |
| purification of metal |
| grain refinement |
| working at lower temperature |
| all of the above |
| none of the above. |
15.Basic solution is one which has pH value |
| greater than 7 |
| equal to 7 |
| less than 7 |
| pH value has nothing to do with basic solution |
| none of the above. |
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