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ITI
Electrician
Electrician Set-1
Sources of Light
4

Sources of Light MCQ - Electrician (Set-1) with Answers

4) When fluorescent lamps are used to replace incandescent bulbs usually :

greater illumination occurs

less illumination occurs

only one colour can be obtained

more shadow occur, but there is less eye strain

Answer is:

greater illumination occurs

Sources of Light MCQ - Electrician (Set-1) with Answers

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Related Sources of Light MCQ - Electrician (Set-1) with Answers

5) If the starter of a glowing tube-light is withdrawn then the tube-light :

will become OFF

will continue to glow

filaments will be damaged

will glow intermittently

Answer is:

will continue to glow

6) The inner tube of a H.P.M.V. lamp is filled with :

argon gas

halogen gas

helium gas

nitrogen gas

Answer is:

argon gas

7) H.P.M.V. lamps are available in a rating of :

40, 60 watts

100, 200 watts

80, 125 watts

150, 300 watts

Answer is:

80, 125 watts

8) Voltage required to operate a neon-sign tube depends upon :

diameter of the tube

gases in the tube

length of the tube

thickness of the tube

Answer is:

length of the tube

Sources of Light MCQ - Electrician (Set-1) with Answers

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