Which of the following refers to the video signal amplitude that determines the quality of the picture? A. Chrominance B. Luminance C. Brightness D. Contrast

Which of the following refers to the video signal amplitude that determines the quality of the
picture?
A. Chrominance
B. Luminance
C. Brightness
D. Contrast
by

1 Answer

Answer :

D. Contrast
by

Related questions

In television broadcasting vivid strong colors are often referred as _______. A. Saturation B. Hue C. Chrominance D. Luminance

Description : In television broadcasting vivid strong colors are often referred as _______. A. Saturation B. Hue C. Chrominance D. Luminance

Last Answer : A. Saturation

Which of the following feature is used to revert the original picture? (a) Recolor (b) Contrast (c) Brightness (d) Reset picture -Technology

Description : Which of the following feature is used to revert the original picture? (a) Recolor (b) Contrast (c) Brightness (d) Reset picture -Technology

Last Answer : (d) Reset picture feature of Picture Tools Format is used to revert the original picture.

Luminance efficiency is minimum for a a. Fluorescent tube b. High wattage light bulb c. Mercury vapor lamp d. Low wattage light bulb

Description : Luminance efficiency is minimum for a a. Fluorescent tube b. High wattage light bulb c. Mercury vapor lamp d. Low wattage light bulb

Last Answer : d. Low wattage light bulb

Where is the brightness control located in a TV? A. The audio section B. The video section C. The grid-cathode circuit D. The front panel

Description : Where is the brightness control located in a TV? A. The audio section B. The video section C. The grid-cathode circuit D. The front panel

Last Answer : A. The audio section

The following are true about the contrast sensitivity: a. Pelli-Robson chart tests the contrast sensitivity b. is a measure of the ratio of brightness to darkness c. a contrast of 1 means that there is no contrast d. is highest at middle range frequencies

Description : The following are true about the contrast sensitivity: a. Pelli-Robson chart tests the contrast sensitivity b. is a measure of the ratio of brightness to darkness c. a contrast of 1 means that there is no contrast d. is highest at middle range frequencies

Last Answer : is highest at middle range frequencies

In regard to colour, what does Chroma stand for, A. Degree of saturation of hue B. Brightness C. Value D. Contrast

Description : In regard to colour, what does Chroma stand for, A. Degree of saturation of hue B. Brightness C. Value D. Contrast

Last Answer : A. Degree of saturation of hue

Refers to the first symbol in an emission designation with an amplitude modulated main carrier represented by letter H. A. Single sideband suppressed carrier B. Double sideband full carrier C. Independent sideband D. Double sideband

Description : Refers to the first symbol in an emission designation with an amplitude modulated main carrier represented by letter H. A. Single sideband suppressed carrier B. Double sideband full carrier C. Independent sideband D. Double sideband

Last Answer : B. Double sideband full carrier

Where is the noise generated that primarily determines the signal-to-noise ratio in a VHF (150MHz) marine-band receiver? A. Man-made noise B. In the atmosphere C. In the receiver front end D. In the ionosphere

Description : Where is the noise generated that primarily determines the signal-to-noise ratio in a VHF (150MHz) marine-band receiver? A. Man-made noise B. In the atmosphere C. In the receiver front end D. In the ionosphere

Last Answer : C. In the receiver front end

What determines the ability of radar to determine the bearing to a target? A. Speed of light B. Speed of target C. Antenna directivity D. Frequency of signal

Description : What determines the ability of radar to determine the bearing to a target? A. Speed of light B. Speed of target C. Antenna directivity D. Frequency of signal

Last Answer : C. Antenna directivity

Where is the noise generated that primarily determines the signal-to-noise ratio in a VHF (150 MHz) marine-band receiver? A. In the ionosphere B. In the receiver rear end C. In the receiver front end D. In the atmosphere

Description : Where is the noise generated that primarily determines the signal-to-noise ratio in a VHF (150 MHz) marine-band receiver? A. In the ionosphere B. In the receiver rear end C. In the receiver front end D. In the atmosphere

Last Answer : C. In the receiver front end

A 1 Mhz carrier is amplitude modulated by a pure 200-Hz audio test tone. Which of the following combinations of frequencies represent the total content of the AM signal? A. 1 MHz and 200 Hz B. 1 MHz and 1000.2 kHz C. 999.8 kHz, 1000 kHz, and 1000.2 kHz D. 999.8 kHz and 1000.2 kHz

Description : A 1 Mhz carrier is amplitude modulated by a pure 200-Hz audio test tone. Which of the following combinations of frequencies represent the total content of the AM signal? A. 1 MHz and 200 Hz B. 1 MHz and 1000.2 kHz C. 999.8 kHz, 1000 kHz, and 1000.2 kHz D. 999.8 kHz and 1000.2 kHz

Last Answer : C. 999.8 kHz, 1000 kHz, and 1000.2 kHz

What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave

Description : What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave

Last Answer : D. A frequency modulated continuous wave

One of the FM signal generator control which varies the phase of the modulating voltage applied to the oscillator of the sweep generator A. Band control B. Phase control C. Marker amplitude control D. Sweep output control

Description : One of the FM signal generator control which varies the phase of the modulating voltage applied to the oscillator of the sweep generator A. Band control B. Phase control C. Marker amplitude control D. Sweep output control

Last Answer : B. Phase control

What is the first symbol of a radio signal transmission having an amplitude modulated signal carrier, double side band? A. C B. B C. H D. A

Description : What is the first symbol of a radio signal transmission having an amplitude modulated signal carrier, double side band? A. C B. B C. H D. A

Last Answer : D. A

What is the effect in over modulated amplitude modulated radio broadcasting transmission? A. Interference to adjacent channel B. Higher fidelity C. Increase noise D. Higher audio signal

Description : What is the effect in over modulated amplitude modulated radio broadcasting transmission? A. Interference to adjacent channel B. Higher fidelity C. Increase noise D. Higher audio signal

Last Answer : A. Interference to adjacent channel

A carrier signal has ______. A. Constant peak amplitude B. The information C. Frequency range 20-20000 Hz D. A varying amplitude

Description : A carrier signal has ______. A. Constant peak amplitude B. The information C. Frequency range 20-20000 Hz D. A varying amplitude

Last Answer : A. Constant peak amplitude

If the percentage modulation of an AM amplifier is 88% and the modulating signal is 1 volt, the carrier has an amplitude of _______________. A. 1.14 volts B. 0.88 volt C. 1.88 volts D. 0.12 volt

Description : If the percentage modulation of an AM amplifier is 88% and the modulating signal is 1 volt, the carrier has an amplitude of _______________. A. 1.14 volts B. 0.88 volt C. 1.88 volts D. 0.12 volt

Last Answer : A. 1.14 volts

Does a greater contrast ratio equate to better picture quality?

Description : Does a greater contrast ratio equate to better picture quality?

Last Answer : Yes, it will make the picture much sharper.

The ENERGY associated with a photon depends upon the photon's: w) velocity x) frequency y) amplitude z) the brightness of the source from which it comes

Description : The ENERGY associated with a photon depends upon the photon's: w) velocity x) frequency y) amplitude z) the brightness of the source from which it comes

Last Answer : ANSWER: X -- FREQUENCY

What significant element of sound refers to its characteristic tonal quality? A. Pitch B. Tempo C. Rhythm D. Timbre

Description : What significant element of sound refers to its characteristic tonal quality? A. Pitch B. Tempo C. Rhythm D. Timbre

Last Answer : D. Timbre

……… option is used to adjust the brightness of the picture. -Technology

Description : ……… option is used to adjust the brightness of the picture. -Technology

Last Answer : Brightnessoption is used to adjust the brightness of the picture.

Technical study which deals with production, transport and delivery of a quality signal from source to destination. A. Transmission system engineering B. Communication system engineering C. Telephony engineering D. Telegraphic engineering

Description : Technical study which deals with production, transport and delivery of a quality signal from source to destination. A. Transmission system engineering B. Communication system engineering C. Telephony engineering D. Telegraphic engineering

Last Answer : A. Transmission system engineering

Digital transmission provides a higher level of signal quality than analog transmission because A. repeaters regenerate digital pulses and remove distorstion B. digital signals are easier to sample than analog signals C. digital signals are smaller than analog signals and cannot easily be distorted D. analog signals are continuous and not easily distorted.

Description : Digital transmission provides a higher level of signal quality than analog transmission because A. repeaters regenerate digital pulses and remove distorstion B. digital signals are easier to sample than ... and cannot easily be distorted D. analog signals are continuous and not easily distorted.

Last Answer : A. repeaters regenerate digital pulses and remove distorstion

Which of the following is not a baseband signal modulation? A. RF carrier B. Video System C. Audio signal D. Binary coded pulses

Description : Which of the following is not a baseband signal modulation? A. RF carrier B. Video System C. Audio signal D. Binary coded pulses

Last Answer : A. RF carrier

Pattern ERG (PERG): a. tests the function of the ganglion cells b. uses a checkered board pattern that changes in luminance c. gives the same information as visual evoked response (VER) d. is abnormal in glaucoma

Description : Pattern ERG (PERG): a. tests the function of the ganglion cells b. uses a checkered board pattern that changes in luminance c. gives the same information as visual evoked response (VER) d. is abnormal in glaucoma

Last Answer : is abnormal in glaucoma

Luminance efficiency is minimum for a ∙ a. Fluorescent tube ∙ b. High wattage light bulb ∙ c. Mercury vapor lamp ∙ d. Low wattage light bulb

Description : Luminance efficiency is minimum for a ∙ a. Fluorescent tube ∙ b. High wattage light bulb ∙ c. Mercury vapor lamp ∙ d. Low wattage light bulb

Last Answer : d. Low wattage light bulb

Which among the following determines the pitch of a sound? (1) Amplitude (2) Frequency (3) Loudness (4) Wavelength

Description : Which among the following determines the pitch of a sound? (1) Amplitude (2) Frequency (3) Loudness (4) Wavelength

Last Answer : (2) Frequency Explanation: The pitch of a sound is determined by the frequency of vibration of the sound waves So higher the frequency the higher is the pitch.

Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Description : Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Last Answer : ANSWER: W -- PROPAGATION VELOCITY

What determines antenna polarization? A. The frequency of the radiated wave B. The direction of the radiated wave C. The direction of the magnetic field vector D. The direction of the electric field vector

Description : What determines antenna polarization? A. The frequency of the radiated wave B. The direction of the radiated wave C. The direction of the magnetic field vector D. The direction of the electric field vector

Last Answer : D. The direction of the electric field vector

Which of the following determines the acoustic behavior of gases? A. Density B. Pressure C. Temperature D. All of the choices

Description : Which of the following determines the acoustic behavior of gases? A. Density B. Pressure C. Temperature D. All of the choices

Last Answer : D. All of the choices

What determines the velocity factor in a transmission line? A. The termination impedance B. The line length C. Dielectrics in the line D. The center conductor resistivity

Description : What determines the velocity factor in a transmission line? A. The termination impedance B. The line length C. Dielectrics in the line D. The center conductor resistivity

Last Answer : C. Dielectrics in the line

Which of the following determines the characteristics of a transmission line? A. Inductance B. Capacitance C. Physical dimension D. Length

Description : Which of the following determines the characteristics of a transmission line? A. Inductance B. Capacitance C. Physical dimension D. Length

Last Answer : C. Physical dimension

One of the following is a high powered RF ac basic transmitter that has two or more stages, the oscillator stage which determines the frequency opereation and RF amplifier stage orstages that develop the high power output. The purpose of which is to develop a good frequency stability. A. Goldsmith B. MOPA C. Alexanderson D. Hartley

Description : One of the following is a high powered RF ac basic transmitter that has two or more stages, the oscillator stage which determines the frequency opereation and RF amplifier stage orstages that develop the ... to develop a good frequency stability. A. Goldsmith B. MOPA C. Alexanderson D. Hartley

Last Answer : B. MOPA

What determines the velocity factor in transmission line? A. The center conductor resistivity B. Dielectrics in the line C. The termination impedance D. The line length

Description : What determines the velocity factor in transmission line? A. The center conductor resistivity B. Dielectrics in the line C. The termination impedance D. The line length

Last Answer : B. Dielectrics in the line

Which determines the number of sideband components of FM? A. Modulation frequency B. Modulation index C. Carrier frequency D. All of these

Description : Which determines the number of sideband components of FM? A. Modulation frequency B. Modulation index C. Carrier frequency D. All of these

Last Answer : B. Modulation index

Noise consisting of irregular pulses of short duration and relatively high amplitude, A. Quantizing noise B. Tone interference C. Impulse noise D. Cross talk

Description : Noise consisting of irregular pulses of short duration and relatively high amplitude, A. Quantizing noise B. Tone interference C. Impulse noise D. Cross talk

Last Answer : C. Impulse noise

Noise consisting of irregular pulses of short duration and relatively high amplitude, A. Quantizing noise B. Tone interference C. Impulse noise D. Cross talk

Description : Noise consisting of irregular pulses of short duration and relatively high amplitude, A. Quantizing noise B. Tone interference C. Impulse noise D. Cross talk

Last Answer : A. Quantizing noise

A 1000W carrier is amplitude modulated to a depth of 85%. Calculate the total power of the modulated wave? A. 1361.25 W B. 680.62 W C. 1425 W D. 712.5 W

Description : A 1000W carrier is amplitude modulated to a depth of 85%. Calculate the total power of the modulated wave? A. 1361.25 W B. 680.62 W C. 1425 W D. 712.5 W

Last Answer : A. 1361.25 W

What distortion is not caused by transmission line characteristics? A. Phase distortion B. Pulse shape distortion C. Spacing bias distortion D. Amplitude distortion

Description : What distortion is not caused by transmission line characteristics? A. Phase distortion B. Pulse shape distortion C. Spacing bias distortion D. Amplitude distortion

Last Answer : C. Spacing bias distortion

In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Description : In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Last Answer : B. Frequency

This is referred to a product of simultaneous frequency and amplitude modulation or a carrier frequency variation which produces unwanted distortion. A. Absorption modulation B. Simultaneous modulation C. Dynamic instability D. Series modulation

Description : This is referred to a product of simultaneous frequency and amplitude modulation or a carrier frequency variation which produces unwanted distortion. A. Absorption modulation B. Simultaneous modulation C. Dynamic instability D. Series modulation

Last Answer : C. Dynamic instability

In amplitude modulation technique the unmodulated carrier is referred to as having ______. A. 100% modulation B. 0% modulation C. 50% modulated D. Over modulated

Description : In amplitude modulation technique the unmodulated carrier is referred to as having ______. A. 100% modulation B. 0% modulation C. 50% modulated D. Over modulated

Last Answer : B. 0% modulation

What is the period of a wave? A. The number of degrees in tone cycle B. The number of zero crossing in one cycle C. The amplitude of the wave D. The time required to complete one cycle

Description : What is the period of a wave? A. The number of degrees in tone cycle B. The number of zero crossing in one cycle C. The amplitude of the wave D. The time required to complete one cycle

Last Answer : D. The time required to complete one cycle

Which of the following systems is not used in radio detection and ranging? A. Frequency shift B. Frequency modulation C. Pulse radar D. Amplitude modulation

Description : Which of the following systems is not used in radio detection and ranging? A. Frequency shift B. Frequency modulation C. Pulse radar D. Amplitude modulation

Last Answer : D. Amplitude modulation

Used for time division multiplexing. A. Frequency modulation B. Pulsed modulation C. SSB D. Amplitude modulation

Description : Used for time division multiplexing. A. Frequency modulation B. Pulsed modulation C. SSB D. Amplitude modulation

Last Answer : B. Pulsed modulation

A method of expressing the amplitude of complex non-periodic signals such as speech. A. Frequency B. Wavelength C. Volume D. Pitch

Description : A method of expressing the amplitude of complex non-periodic signals such as speech. A. Frequency B. Wavelength C. Volume D. Pitch

Last Answer : C. Volume

The series of periodically recurrent pulses is modulated in amplitude by the corresponding instantaneous samples. A. PFM B. PWM C. PDM D. PAM

Description : The series of periodically recurrent pulses is modulated in amplitude by the corresponding instantaneous samples. A. PFM B. PWM C. PDM D. PAM

Last Answer : D. PAM

What is the reason why companding is employed in PCM systems? A. To overcome impulse noise in PCM receivers B. To allow amplitude limiting in the receivers C. To solve quantizing noise problem D. To protect small signals in PCM from quantizing distortion

Description : What is the reason why companding is employed in PCM systems? A. To overcome impulse noise in PCM receivers B. To allow amplitude limiting in the receivers C. To solve quantizing noise problem D. To protect small signals in PCM from quantizing distortion

Last Answer : D. To protect small signals in PCM from quantizing distortion

Modulation means A. Varying of information B. Utilization of a single transmission channel to carry multiple signals C. Varying of some parameters of a carrier such as its amplitude to transmit information D. Transmit pulses in DC form on a copper wire

Description : Modulation means A. Varying of information B. Utilization of a single transmission channel to carry multiple signals C. Varying of some parameters of a carrier such as its amplitude to transmit information D. Transmit pulses in DC form on a copper wire

Last Answer : C. Varying of some parameters of a carrier such as its amplitude to transmit information