A Best Way To Crack Gorenment Job Exams

Electronics Engineering Objective Questions { Television Engineering }

29. To cut-off a transistor for trouble-shooting purposes, we should
A. short the base and emitter
B. short the base and collector
C. either (a) or (b)
D. none of the above
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30. In a TV receiver set, sound and video signals are separated at the
A. video detector
B. video amp
C. sync separator
D. IF stage
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31. The vertical and horizontal pulses in a TV set are separated at the
B. sync amp
C. sync separator
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32. When in a TV receiver set, both sound and picture are weak and distorted, the problem is most likely to be in the
B. FM detector
C. tuner
D. video amp
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33. When a weak TV picture is accompanied by normal sound and bright raster, the probable fault lies in
B. video section
C. AF amp
D. sync amp
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34. Lack of raster in a TV receiver set often indicates no
A. TV signal
B. video signal
D. high voltage
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35. If picture in a TV monitor is snowy in appearance, the defect is likely to be in
A. tuner
B. antenna cable
C. RF amplifier
D. any one of the above
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