Test 1

4. ---- is used for sound signal modulation in SECAM
5. 1 frame is made up of 2 ----
8. ---- which is related to picture quality is less in NTSC compared to PAL and SECAM
11. Colour ---- circuit isolates chroma band pass amplifier during black and white transmission
12. this circuit is used to remove amplitude variations in a black and white TV receiver
15. Frequency ---- is the principle used to fit colour signal in the bandwidth of black and white TV
17. colour ---- signal is sent on the back porch of HBP in colour TV
18. ---- AGC and delayed AGC are present in TV receiver

1. the receiving antenna used for black and white TV
2. ----is not present between the 2 colour difference signals in SECAM
3. type of polarization used in black and white TV
4. 585 are the no. of ---- lines in a frame
6. gain and ---- of the receiver depends on IF stage
7. ---- modulation technique is used in TV, so that the noise should not appear as white spots
9. VSB ---- is used to equalize amplitudes of SBs
10. the colour receptors in human eye are ----
13. interlaced scanning is used to avoid ----
14. 5.5 MHz ---- circuit used to separate sound from picture
16. 4:3 is the ---- ratio used for black and white TV
17. ---- is used for impedance matching between twin lead wire and the TV