A. overhead telephone wire
B. earth wire
C. core wire of ACSR
D. all of the above
Related Mcqs:
- The coils of D.C. motor starter are wound with wire of_______________?
A. copper
B. kanthal
C. manganin
D. nichrome - If the resistance of a conductor does not vary in accordance with Ohm’s law it is known as____________?
A. non-linear conductor
B. reverse conductor
C. bad-conductor
D. non-conductor - The tiny block formed by the arrangement of a small group of atoms is called the____________?
A. unit cell
B. space lattice
C. either A. or (b)
D. none of the above - The kinetic energy of a bounded electron is______________?
A. less than that of unbounded electron
B. greater than that of unbounded electron
C. equal to that of unbounded electron
D. infinite
E. none of the above - On which of the following factors does the resistivity of a material depend ?
A. Resistance of the conductor
B. Area of the conductor section
C. Length of the conductor
D. All of the above - Which of the following is the poorest conductor of electricity ?
A. Carbon
B. Steel
C. Silver
D. Aluminium - Which of the following variety of copper has the best conductivity ?
A. Induction hardened copper
B. Hard drawn copper
C. Pure annealed copper
D. Copper containing traces of silicon - Total number of crystal systems is____________?
A. 2
B. 4
C. 7
D. 12 - Due to which of the following factors the brush wear rate is altered ?
A. Speed of the machine
B. Contact pressure
C. Surface conditions of brush and commutator
D. Excessive sparking
E. All of the above - Which of the following is an advantage of stranded conductor over equivalent single conductor ?
A. Less liability to kink
B. Greater flexibility
C. Less liability to break
D. All of the above
