1000+ Illumination MCQ Questions and Answers Pdf - 1
Question: 1
Fine diameter tungsten wires are made by
(A) wire drawing
(B) compressing
(C) turning
(D) swaging
Ans: A
wire drawing
Question: 2
In the fluorescent tube circuit the function of choke is primarily to
(A) reduce the starting current
(B) initiate the arc and stabilize it
(C) minimise the starting surge
(D) reduce the flicker
Ans: B
initiate the arc and stabilize it
Question: 3
The flicker effect of fluorescent lamps is more pronounced at
(A) higher voltages
(B) lower voltages
(C) higher frequencies
(D) lower frequencies
Ans: D
lower frequencies
Question: 4
The vapour discharge tube used for domestic lighting has
(A) one filament
(B) two filaments
(C) three filaments
(D) no filament
Ans: B
two filaments
Question: 5
Reflectors are provided with slits at the top of
(A) reduce heating effect
(B) introduce chimney effect for cleaning
(C) reduce colour contrast
(D) do all of the above functions
Ans: D
do all of the above functions
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