Rajasthan Technical Education Second Year Paper 2016 – Audio and Video System

Rajasthan Technical Education Second Year Paper 2016 – Audio and Video System

Audio frequency range is
(a) 20 Hz to 10 kHz
(b) 50 Hz to 15 kHz
(c) 20 Hz to 20 kHz
(d) 100 Hz to 20 kHz

An instrument used to convert sound into electrical energy is
(a) Loud Speaker
(b) Microphone
(c) Strain Gauge
(d) LVDT

Maximum sensitivity & high SNR microphone is
(a) Carbon microphone
(b) Condenser microphone
(c) Electrodynamic Microphone
(d) Crystal microphone

A loud speaker with hgih frequency components called
(a) Tweeter Speaker
(b) Woofer Speaker
(c) Mid range Speaker
(d) Compact Speaker

What converts optical image into equivalent video signal ?
(a) Microphone
(b) Speaker
(c) LVDT
(d) CCD

Fidelity means
(a) Signal to noise ratio
(b) Degree of closeness
(c) Flat response
(d) None linear distortion

Erasing process is activated
(a) before recording
(b) after recording
(c) before play back
(d) after play back

Tape transport mechanism drives tape by
(a) Tape guides
(b) Idler rollers
(c) Capstan
(d) Pinch roller

Characteristic quality of sound is
(a) Pitch
(b) Timber
(c) Loudness
(d) Intensity

Low frequency component in sound means
(a) Wow
(b) Flutter
(c) Treble
(d) Bass

TV system used in India is
(a) 525 H
(b) 625 H
(c) 819 H
(d) 470 H

Scanning technique used at TV receiver is
(a) interlaced technique
(b) prograssive technique
(c) azimuth technique
(d) spiral technique

Value of resolution factor (k) of human eye is
(a) 0.4
(b) 0.5
(c) 0.6
(d) 0.7

Ratio of width over height of raster is
(a) Contrast ratio
(b) Picture-sync ratio
(c) Aspect ratio
(d) Signal-noise ratio

Peak white level in composite video signal is (on relative amplitude)
(a) 7.5%
(b) 12.5%
(c) 75%
(d) 100%