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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