ONLINE MCQ EE-ILLUMINATION 2

Q11. photometer is used for comparing ‘the lights of different colours ?
 A.  Grease spot
 [Wrong Answer]
 B.  Bunsen
 [Wrong Answer]
 C.   Lummer brodhum
 [Wrong Answer]
 D.  Guilds flicker
 [Correct Answer]
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Q12. ____ is a cold cathode lamp.
 A.   Fluorescent lamp
 [Wrong Answer]
 B.  Neon lamp
 [Correct Answer]
 C.   Mercury vapour lamp
 [Wrong Answer]
 D.  Sodium vapour lamp
 [Wrong Answer]
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qid2155=$(‘#qid2155’).val(”);
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Q13. The flicker effect of fluorescent lamps is more pronounced at
 A.  lower frequencies
 [Correct Answer]
 B.  higher frequencies
 [Wrong Answer]
 C.  lower voltages
 [Wrong Answer]
 D.  higher voltages
 [Wrong Answer]
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Q14. Glare is reduced by
 A.  using diffusers
 [Wrong Answer]
 B.  increasing the height of the lamp
 [Wrong Answer]
 C.  using reflectors to cut-off the light at certain angle
 [Wrong Answer]
 D.  all of the above
 [Correct Answer]
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qid2157=$(‘#qid2157’).val(”);
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Q15. In fluorescent tubes ballast resistance is connected in series with the choke
 A.  to reduce stroboscopic effects
 [Wrong Answer]
 B.  when tube operates on D.C. supply
 [Correct Answer]
 C.  when supply frequency is low
 [Wrong Answer]
 D.  to reduce radio interference
 [Wrong Answer]
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$(‘#getrequest2158’).html(ajaxresult);

qid2158=$(‘#qid2158’).val(”);
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Q16. Colour of light depends upon
 A.  frequency
 [Wrong Answer]
 B.  wave length
 [Wrong Answer]
 C.  both (a) and (b)
 [Correct Answer]
 D.  speed of light
 [Wrong Answer]
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qid2159=$(‘#qid2159’).val(”);
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Q18. For the same power output
 A.  high voltage rated lamps will be more sturdy
 [Wrong Answer]
 B.  low voltage rated lamps will be more sturdy
 [Correct Answer]
 C.  both low and high voltage rated lamps will be equally sturdy
 [Wrong Answer]
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Q19. In the fluorescent tube circuit the func­tion of choke is primarily to
 A.  reduce the flicker
 [Wrong Answer]
 B.  minimize the starting surge
 [Wrong Answer]
 C.  initiate the arc and stabilize it
 [Correct Answer]
 D.  reduce the starting current
 [Wrong Answer]
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qid2162=$(‘#qid2162’).val(”);
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Q20. In case of ____ least illumination level is required.
 A.   skilled bench work
 [Wrong Answer]
 B.  drawing offices
 [Wrong Answer]
 C.   hospital wards
 [Correct Answer]
 D.  fine machine work
 [Wrong Answer]
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ONLINE MCQ EE-ILLUMINATION 3
ONLINE MCQ EE-ILLUMINATION 1

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