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Television Picture Tubes – 1 – 2

6. In a colour picture tube, the three beams coverage to a point ………….

(a) at shadow mask
(b) at screen
(c) between G-1 and G-2
(d) at internal aquadag coating

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

7. FST gives better contrast because ………….

(a) it reduces reflection
(b) it allows more beam current
(c) it produces more deflection
(d) it uses LCDs

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

8. Aquadag coatings form a ………….. in a picture tube.

(a) capacitor
(b) resistor
(c) inductor
(d) transformer

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

9. The number of guns in a colour picture tube is ……..

(a) 2
(b) 3
(c) 4
(d) 5

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

10. Pincushion effect in a colour picture tube can be corrected by …………….

(a) magnetic ring
(b) current through deflection coils
(c) current through convergence coils
(d) colour purity adjustment

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

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