Electrical Engineering : Electrical Engineering Materials QUESTIONS AND ANSWERS :: part2 : 6 to 10
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.Constantan contains |
| silver and tin |
| copper and tungsten |
| tungsten and silver |
| copper and nickel |
7._____ is the main constituent of glass |
| Fe203 |
| Si02 |
| AI2O3 |
| B2O3 |
8.Addition of 0.3 to 4.5% silicon to iron _____ the electrical resistivity of iron. |
| increases |
| decreases |
| does not change |
| increases |
9.Total number of crystal systems is |
| 2 |
| 4 |
| 7 |
| 12 |
10.Which of the following materials does not have covalent bonds ? |
| Organic polymers |
| Silicon |
| Metals |
| Metals |
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