Television and TV Broadcasting MCQ 1|Electronics and Communications Engineering MCQ

1. Television transmitting antennas are

a. Unidirectional

b. Bidirectional

c. Directional

d. Omnidirectional.

2. TV broadcasting in India is done in;

a. U.H.F band

b. Microwave band.

c. V.H. F band

3. In order to eliminate ghosts in TV picture,

a. Use longer transmission line

b. Connect a booster

c. Use a multiband antenna

d. Change antenna location or orientation.

4. Basically, a picture detector is

a. An IF video coupler

b. Power Rectifier

c. Demodulator.

d. Ratio detector

5. The peak to peak value of picture –detector output voltage for optimum picture and sound reproduction is about ……. Volt

a. 5

b. 10

c. 0.25

d. 2.

6. In most cases ,malfunctions in AGC system is caused by,

a. Deteriorated electrolytic capacitors.

b. Defective inductors

c. Too short time constant

d. AGC detector

7. AGC bias voltage is never applied to

a. IF section

b. RF section

c. Sound IF section.

d. Both IF and RF sections

8. The TV camera used for live TV transmission is known as

a. Vidicon

b. Image-orthicon.

c. Ortho-vidicon

d. Image-vidicon

9. TV transmitters of satellites uses

a. Image orthicon

b. Vidicon.

c. CRT

d. Photoelectric cell

10. An ion spot on the CRT screen is caused by

a. Excessive screen brightness

b. High line voltage

c. High electron velocity

d. Ion bombardment of the fluorescent screen.

Television and TV Broadcasting MCQ 1|Electronics and Communications Engineering MCQ