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ILLUMINATION
Set 2
Set 2
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Q14053
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Which is coated in the tungsten filament of fluorescent tube lamp?
A
Barium and strontium oxides
B
Mercury
C
Sodium
D
Phosphor
Q14054
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What is the expansion of CFL?
A
Compressed filament lamp
B
Cathode filament lamp
C
Common fluorescent lamp
D
Compact fluorescent lamp
Q14055
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How strohoscopic effect is prevented in industrial twin tube light fitting?
A
By connecting a capacitor parallel to supply
B
By connecting a capacitor parallel to each tube
C
By connecting a capacitor series with one tube
D
By connecting a capacitor a series with both tube light
Q14056
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Which type of fluorescent tube lamps are used for dimming and flashing circuits?
A
Instant start fluorescent lamp
B
Rapid start fluorescent tube lamp
C
Fluorescent lamp single tube lamp
D
Fluorescent lamp double tube lamp
Q14057
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Which is cold cathode lamp?
A
Mercury vapour lamp
B
Fluorescent tube lamp
C
Halogen lamp
D
Neon lamp
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