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Illumination
4

Illumination MCQ with Answers

4) Which metal is used a filament incandescent lamps?

Nichrome

Tungsten

Eureka

Silver

Answer is:

Tungsten

Illumination MCQ with Answers

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Related Illumination MCQ with Answers

5) Where halogen lamps are used?

Domestic lighting

Industrial lighting

TV photography

Out door lighting

Answer is:

TV photography

6) Which is coated in the tungsten filament of fluorescent tube lamp?

Barium and strontium oxides

Mercury

Sodium

Phosphor

Answer is:

Barium and strontium oxides

7) What is the expansion of CFL?

Compressed filament lamp

Cathode filament lamp

Common fluorescent lamp

Compact fluorescent lamp

Answer is:

Compact fluorescent lamp

8) How strohoscopic effect is prevented in industrial twin tube light fitting?

By connecting a capacitor parallel to supply

By connecting a capacitor parallel to each tube

By connecting a capacitor series with one tube

By connecting a capacitor a series with both tube light

Answer is:

By connecting a capacitor series with one tube

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