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Colour Television Systems – 1 – 2

6. Colour killer circuit kills the colour when :

(a) Colour burst is excessive
(b) Colour burst is present
(c) Colour burst is absent
(d) 
Received used in monochrome

ANSWER

EXPLANATION

7. Weighting factor for U is :

(a) 0
(b) 1
(c) 0.493
(d) 
0.877

ANSWER

EXPLANATION

8. Sound system uses in PAL transmitter :

(a) AM
(b) FM
(c) AMSC
(d) 
AMVSB

ANSWER

EXPLANATION

9. Change in colour due to phase noise is automatically corrected in the most effective manner in ………….

(a) D-PAL
(b) NTSC
(c) SECAM
(d) S-PAL

ANSWER

EXPLANATION

10. B-Y signal changes in PAL on alternate lines by ………….

(a) 0 degree
(b) 45 degree
(c) 90 degree
(d) 180 degree

ANSWER

EXPLANATION

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