The expected answers were:
- (i) A stage in which the video or black and white
signal is amplified.
(ii) A stage in which the sync pulses is separated from the video signal.
(iii) A stage in which the vertical frequency is produced
or generated.
(b)
(i) Automatic Control
(ii) Local oscillator
(iii) IF amplifier block
(iv) Mixer block
(v) RF amplifier block
(vi) Sound amplifier block
(vii) Demodulator block
The question was on Communication Systems. The question was popular with the candidates. The performance was fairly good.