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Electronics Engineering Objective Questions { Television Engineering }



274. For both I and Q negative, the resultant lies in the
A. 4th quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 1st quadrant
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275. The colour characteristic interpreted by chrominance to luminance ratio is
A. its hue
B. its saturation level
C. its brightness level
D. none of these
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276. The amplitude of the chroma signal for a particular primary colour and that for its complementary are
A. equal
B. different with former greater than the later
C. different with former less than the later
D. none of these
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277. Assuming R=G=B=1 V, luminance of fully saturated red is
A.0.3
B.0.11
C.0.59
D.1
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278.  If I = 0.60R ? 0.28G ? 0.32 B, then luminance level of fully saturated cyan is
A. indeterminate
B.0.28
C. ?0.60
D.0.32
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279.  In photoemmission principle when the intensity of light from the scene to be televised is increased
A. the number of electrons emitted from the target is increased
B. the number of electrons emitted from the target decreases
C. the number of electrons emitted from the target is uncharged
D. none of these
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280. In photoemission, the number of electrons emitted from the target surface
A. varies directly as the wavelength of incident light
B. varies inversely as the wavelength of incident light
C. is independent of wavelength
D. none of these
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