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Electrical Engineering Materials - Interview Questions and Answers

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36. The number of atoms per unit cell in B.C.C. structure is
A. 1
B. 2
C. 4
D. 8
Explanation:
37. Overhead telephone wires are made of
A. aluminium
B. steel
C. ACSR conductors
D. copper
Explanation:
38. In thermocouples which of the following pairs is commonly used ?
A. Copper-constantan
B. Aluminium-tin
C. Silver-German silver
D. Iron-steel
Explanation:
39. Which of the following affect greatly the resistivity of electrical conductors ?
A. Composition
B. Pressure
C. Size
D. Temperature
Explanation:
40. Piezoelectric materials serve as a source of _____ .
A. resonant waves
B. musical waves
C. microwaves
D. ultrasonic waves
Explanation:
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