
Electrical house wiring MCQ:
49) | Energy metre for connected, has ________ terminals |
a. 2
b. 4
c. 6
d. 8
Ans. b
50) | Aluminium conductor cables can be joined by |
a. gas welding
b. soldering
c. compression
d. thermit welding
Ans. c
51) | The fluorescent tube in comparison to tungsten filament lamp has the advantage of |
a. low cost
b. longer life
c. simple installation
d. more brightness
Ans. b
52) | MCB is a device that provides definite protection to the wiring installation and sophisticated equipment against |
a. overcurrent
b. short circuit
c. theft
d. both a and b
Ans. d
53) | MCB stands for |
a. main circuit board
b. main circuit breaker
c. miniature circuit breaker
d. all of these
Ans. c
54) | Which are the main reason to failure of any lamp |
a. defective starter
b. defective choke
c. defective and loose holders
d. any of the above
Ans. d
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