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Television Applications – 1 – 1

1. Modulation method used for digital video transmission is :

(a) AM
(b) FM
(c) TDM
(d) OFDM

ANSWER

EXPLANATION

2. In facsimile electronic scanning uses :

(a) Light beam
(b) Electron beam
(c) Electrothermal beam
(d) Ultra sonic rays

ANSWER

EXPLANATION

3. The field frequency of HDTV is :

(a) 15
(b) 30
(c) 60
(d)
 120

ANSWER

EXPLANATION

4. Video recording is based on the principle of :

(a) Electromagnetism
(b) Piezo electric effect
(c) Faraday’s law of electrolysis
(d)
 EM induction

ANSWER

EXPLANATION

5. In DVD, laser beam is reflected from a :

(a) Flat
(b) Pit
(c) Glass
(d)
 Subtrate

ANSWER

EXPLANATION

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