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Television Display Systems – 1 – 1

1. A TV set specified as 50 cm size has the screen whose width is :

(a) 30 cm
(b) 40 cm
(c) 50 cm
(d) 
60 cm

ANSWER

EXPLANATION

2. Pincushion effect in a colour picture tube can be corrected by :

(a) Magnetic ring
(b) Current through deflection coils
(c) Colour purity adjustments
(d) 
Currents through convergence coils

ANSWER

EXPLANATION

3. The television picture tube has :

(a) Magnetic focus and electrostatic deflection
(b) Magnetic focus and magnetic deflection
(c) Electrostatic focus and electrostatic deflection
(d)
 Electrostatic focus and magnetic deflection

ANSWER

EXPLANATION

4. LCD displays more commonly employ :

(a) Nematic crystal
(b) Sematic crystals
(c) Cholesteric crystal
(d)
 Twisted Nematic crystals

ANSWER

EXPLANATION

5. The number of guns in a colour picture tube are :

(a) 2
(b) 4
(c) 3
(d) 
5

ANSWER

EXPLANATION

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