246. A color intensity control operates on the basis of varying the
A. phase of the subcarrier-oscillator output voltage
B. phase of the chroma-signal
C. amplitude of teh chroma-signal
D. amplitude of the color burst

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247. According CCIR standards horizontal scanning frequency is
A. 15,625 Hz
B. 15,750 Hz
C. 50, Hz
D. 60 Hz

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248. Time taken by the electron beam to scan one complete line in CCIR standards is
A. 64 us
B. 63.5 pis
C. 0.02 s
D. none of these

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249. MONITOR is
A. the name given to ordinary TV receivers used for monitoring purposes at the TV station
B. a colour TV receiver
C. a TV receiver without tuner and IF sections
D. none of these

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250. Insufficient horizontal gain in a TV receiver may result in a raster with
A. reduced width
B. a vertical line
C. recuced height
D. poor brightness

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251. Insufficient vertical gain in a TV receiver may result in a picture with
A. reduced width
B. a horizontal line
C. reduced height
D. poor vertical resolution

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252. Frequency standards followed in America are those as suggested by
A. International Radio Consultative Committee
B. Federal Communications Commission
C. Radio Corporation of America
D. none of these

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