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ILLUMINATION
Set 3
Set 3
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Q14058
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Which chemical composition powder gives green colour light in neon sign lamp?
A
Zinc silicate
B
Calcium tungstate
C
Cadmium borate
D
Magnesium tungstate
Q14059
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Which position the MA type HPMV lamp is to be hung for lighting?
A
Horizontally
B
Vertically
C
Inclined
D
Any position
Q14060
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Which colour light sodium vapour lamp gives?
A
Yellow
B
White
C
Blue white
D
Blue
Q14061
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Which part of sodium vapour lamp fitting provides the ignition voltage initially and acts as a choke for limiting the current subsequently?
A
Ignitor
B
Leak transformer
C
Capacitor
D
Thermal starter
Q14062
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Which lamp acts only as switch instead of giving light?
A
LED
B
Miniature lamp
C
Flasher
D
Carbon filament lamp
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