267. If you lose red output of a particular colour system, white elements will
A. look cyan
B. vanish
C. become black
D. none of these
268. Three main factors used to distinguish one colour from another are
A. wavelength, luminance and chrominance
B. hue, saturation and sluminance
C. wavelength, hue andsaturation
D. brightness, contrast and wavelength
269. Which of the following expression is wrong?
A. Cyan + Magenta + Yellow = White
B. Red + Green + Blue = White
C. colour subcarrier is precisely 3.58 MHz
D. none of these
270. The polarities of I and Q signals for red primary are
A. (+ ye) for 1 and Q both
B. (+ ve) for 1 Q (? ve) for Q
C. (? ve) for I and (+ ye) for Q
D. none of these
271. Phase of the red vector with respect to positive (B ? Y) axis is
A.1040
B. 76?
C. 14?
D. none of these
272. Phase of the blue vector with respect to positive (B ? Y) axis is
A. 135?
B. 102?
C. 12?
D. none of these
273. For positive I and negative Q signals, the resultant lies in the
A. 1st quadrant
B. 2nd quadrant
C. 4th quadrant
D. none of these
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