239. Y-signals are also called------signals
A. chrominance
B. luminance
C. multiplexed
D. color-difference

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240.  A Y-matrix consists of
A. a capacitive-divider network
B. an inductive mixing network
C. two turned transformers
D. a resistive mixing network

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241. A color burst consists of at least
A. 8 cycles of 4..5 Mhz voltage
B. 60 cycles of 45.75 MHz voltage
C. 8 cycles of 3.579545 MHz voltage
D. 60 cycles of 15,750 Hz voltage

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242. A color TV receiver employes a ------- picture tube
A. one color
B. two color
C. three color
D. three color & black and white

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243.  Compatible operation means that
A. television sound can be reproduced on an FM receiver
B. television sound can be reproduced on an AM receiver
C. TV color broadcasts can be accepted by a black and white receiver and black and white TV broad casts can be accepted by a color receiver
D. TV color broadcasts can bereproduced in color by a black and white receiver

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244. A color TV camera contains ___ camera tube (s)
A. one
B. two
C. three
D. four

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245. Chroma demodulators process the ____ signal
A. video IF
B. sound IF
C. chroma
D. audio

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