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

Illumination level required for precision work is around

2 / 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

3 / 20

Candela is-the unit for

4 / 20

Radiant efficiency of the luminous source depends on

5 / 20

Light waves travel with a velocity of

6 / 20

The unit of luminous flux is

7 / 20

The unit of solid angle is

8 / 20

Candela is the unit of

9 / 20

Luminous efficiency of a fluorescent tube is

10 / 20

Which photometer depends for its operation on Inverse Square Law ?

11 / 20

Lumen/watt is the unit of

12 / 20

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

13 / 20

The illumination level in houses is in the range

14 / 20

Which of the following lamp gives nearly monochromatic light ?

15 / 20

Which of the following will need lowest level of illumination ?

16 / 20

Light is produced in electric discharge lamps by

17 / 20

Melting temperature of tungsten is

18 / 20

One lumen per square meter is the same as

19 / 20

Carbon arc lamps are commonly used in

20 / 20

The color temperature of day light is around

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

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