16. The width of H-sync pulse in India is :
(a) 12 μs
(b) 4.7 μs
(c) 1870 μs
(d) 1870 μs
17. According to CCIR standards, the television screen is blanked out :
(a) 25 times in one sec
(b) 60 times in one sec
(c) 50 times in one sec
(d) 15625 times in one sec
18. Retrace period of a horizontal line is :
(a) 64 μs
(b) 12 μs
(c) 52 μs
(d) 20 μs
19. Difference between the average DC level of the picture and blanking level is called ………….
(a) pedestal height
(b) pedestal set-up
(c) black set-up
(d) sync pulse height
20. CCIR standards ……….. have not been recommended for future use by CCIR.
(a) A,C,E,F
(b) B,D,G,H
(c) I,K,L,N
(d) B,G,M,N
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