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ITI
Electrician
Electrician Set-2
Illumination
1

Illumination MCQ with Answers

1) What is the S.I unit of luminous intensity?

Lux

Lumen

Candela

Steradian

Answer is:

Candela

Explanation:

.

What is the S.I unit of luminous intensity?

Illumination MCQ with Answers

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Related Illumination MCQ with Answers

2) What is the working temperature of filament lamp?

1500 Degree Centigrade

1800 Degree Centigrade

2000 Degree Centigrade

2300 Degree Centigrade

Answer is:

2300 Degree Centigrade

3) Which material is coated in tungsten electrode of a fluorescent tube lamp?

Silver oxide

Phosphor powder

Fluorescent powder

Barium and stroatium oxide

Answer is:

Barium and stroatium oxide

4) Which position MB type high pressure mercury vapour lamps are operated?

Vertical

Inclined

Horizontal

Any position

Answer is:

Any position

5) What is the function of leak transformer in high pressure sodium vapour lamp circuit?

Reduce the starting current

Reduce the working voltage

Increase the working voltage

Ignite the high voltage initially

Answer is:

Ignite the high voltage initially

Illumination MCQ with Answers

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