Mechanical Engineering : Engineering Materials QUESTIONS AND ANSWERS :: part7 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.Addition of silicon to aluminium results in |
| improvement of casting characteristics |
| improvement of corrosion resistance |
| one of the best known age and precipitation-hardening systems |
| improving machinability |
| none of the above. |
7.Which of the following has highest specific strength of all structural materials |
| magnesium alloys |
| titanium alloys |
| chromium alloys |
| magnetic steel alloys |
| none of the above. |
8.Constantant an alloy used in thermocouples is an alloy of |
| copper and tin |
| copper and zinc |
| copper and iron |
| copper and nickel |
| copper and chromium. |
9.Muntz metal contains copper and zinc in the ratio of |
| 50 : 50 |
| 40 : 60 |
| 60 : 40 |
| 20 : 80 |
| 80 : 20. |
10.Permalloy is a |
| kind of stainless steel |
| none ferrous alloy |
| polymer |
| cutting tool material |
| nickel and iron alloy having high per�meability. |
More Engineering Materials QUESTIONS AND ANSWERS available in next pages
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