309. The purpose of sync separator in TV receivers is
A. to separate horizontal and vertical sync pulses
B. to separate sync pulses (hor and vert) from the composite video signal
C. to separate sync pulses from associated noise
D. none of these

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310.  Vertical oscillator generates
A. 50 Hz sinusoidal signal in CCIR standards
B. 50 Hz sinusoidal signal in FCC standards
C. 60 Hz sawtooth signal in CCIR standards
D. 50 Hz sawtooth signal in CCIR standards

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311. The circuit that keeps horizontal output frequency stable is
A. AFC
B. AGC
C. Horizontal deflection circuit
D. Horizontal output stage

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312. ASPECT RATIO with reference to television is defined as ratio of
A. rastar width to rastar height
B. raster height to raster width
C. horizontal scanning frequency to vertical scanning frequency
D. none of these

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313. Television screen width is always greater than the screen height or in other words raster width is more than raster height because
A. horizontal deflection frequency is higher
B. more detail is in the horizontal direction
C. picture motion is in the horizontal direction
D. none of these

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314.  Horizontal-hold control is generally a
A. variable inductance
B. variable capacitance
C. variable resistance
D. preset resistance

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315.  AGC (Automatic Gain applied to
A. RF and IF stages
B. RF, Mixer and IF stages
C. IF stage
D. none of these

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