By | June 11, 2020

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Created by Surendra

Electric Illumination Quiz in English Set 1

All Important Question Answers for Electrician Related Exams

1 / 20

Radiant efficiency of the luminous source depends on

2 / 20

The unit of solid angle is

3 / 20

Which of the following will need the highest level of illumination ?

4 / 20

The illumination is directly proportional to the cosine of the angle made by the normal to the illuminated surface with the direction of the incident flux. Above statement is associated with

5 / 20

Illumination level required for precision work is around

6 / 20

One lumen per square meter is the same as

7 / 20

Candela is the unit of

8 / 20

Candela is-the unit for

9 / 20

The color temperature of day light is around

10 / 20

Light is produced in electric discharge lamps by

11 / 20

Which photometer depends for its operation on Inverse Square Law ?

12 / 20

Carbon arc lamps are commonly used in

13 / 20

Melting temperature of tungsten is

14 / 20

Which of the following will need lowest level of illumination ?

15 / 20

Which of the following lamp gives nearly monochromatic light ?

16 / 20

The unit of luminous flux is

17 / 20

Light waves travel with a velocity of

18 / 20

Luminous efficiency of a fluorescent tube is

19 / 20

Lumen/watt is the unit of

20 / 20

The illumination level in houses is in the range

कृपया सही सूचना भरें ताकि सर्टिफिकेट ईमेल पर भेजा जा सकें।

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