×

Multiple-Choice Questions

Web Technologies MCQs

Computer Science Subjects MCQs

Databases MCQs

Programming MCQs

Testing Software MCQs

Digital Marketing Subjects MCQs

Cloud Computing Softwares MCQs

AI/ML Subjects MCQs

Engineering Subjects MCQs

Office Related Programs MCQs

Management MCQs

More

Audio Video Engineering MCQs (Multiple-Choice Questions)

Audio Video Engineering is an area of engineering that focuses on the science of maintaining and comprehending audio and video technology. Video engineering focuses on a variety of topics such as maintaining, producing, processing, comprehending, displaying, and generating advanced video and audio signals for practical application. Video engineering is a large industry with professionals working on cutting-edge concepts to display, capture, record, compress, and otherwise process diverse audio-visual inputs.

Explore and practice the most popular multiple-choice questions with answers on Audio Video Engineering. These Audio Video Engineering MCQs are written for beginners as well as advanced that are helpful to learn, test, and enhance the knowledge of Audio Video Engineering. This set of MCQs is constructed in such a manner that it covers all of the major concepts, beginning with the fundamentals and progressing to the advanced such as basic terms related to sound waves, construction of loudspeaker, construction of ear, types of overtones, television fundamentals, types of microphones, Luminance, Synchronization signals, Chrominance and many more.

Audio Video Engineering MCQs (Multiple-Choice Questions) with Answers

1. The intensity of a sound wave is measured by its ____.

  1. Frequency
  2. Wavelength
  3. Amplitude
  4. Phase

Answer: C) Amplitude

Explanation:

The amplitude of a sound wave is the maximum displacement of vibrating particles in a medium from their mean position when the sound is produced. The intensity or strength of a sound wave is measured by its amplitude.

Discuss this question


2. What is a measurement unit of intensity of a sound wave ____.

  1. Hertz
  2. Radians
  3. Phon
  4. Decibels

Answer: D) Decibels

Explanation:

Decibels (dB) are a measurement unit of the intensity of a sound wave. It normally measures sound pressure level. Human hearing has a lower threshold of 0 dB at 1kHz. Sound amplitude may be determined using the following formula: amplitude [dB] = 20 logs 10.

Discuss this question


3. What is the relation between wavelength and frequency?

  1. High-frequency sounds have shorter wavelengths
  2. High-frequency sounds have larger wavelengths
  3. Low-frequency sounds have shorter wavelengths
  4. None of the above mentioned

Answer: A) High-frequency sounds have shorter wavelengths.

Explanation:

The wavelength of a wave is inversely proportional to its frequency. High-frequency sounds have shorter wavelengths.

Discuss this question


4. The position of a sound wave to a reference point is referred to as ____.

  1. Frequency
  2. Wavelength
  3. Amplitude
  4. Phase

Answer: D) Phase

Explanation:

The position of a sound wave to a reference point is referred to as its phase.

Discuss this question


5. Sound waves are also known as ____.

  1. Matter wave
  2. Mechanical wave
  3. Transverse wave
  4. Microwave

Answer: B) Mechanical wave

Explanation:

Sound waves are also known as mechanical waves. Mechanical waves are waves that require a medium (solid, liquid, or gas) to travel through. In the case of sound waves, they are produced by the vibrations of particles in a medium, which then propagates as compressions and rarefactions through the medium.

Discuss this question


6. Amongst which of the following determines sound's pitch?

  1. Phase
  2. Wavelength
  3. Amplitude
  4. Frequency

Answer: D) Frequency

Explanation:

Frequency determines the sound's pitch. The pitch of a sound refers to how high or low it sounds to a person's ear. The pitch is closely related to the frequency of the sound wave.

Discuss this question


7. In sound waves, ‘Diffraction' occurs due to ____.

  1. Encounter obstacles
  2. Pass through openings similar in size to their wavelength
  3. Both A and B
  4. diffraction

Answer: D) diffraction

Explanation:

When sound waves encounter obstacles or pass through openings similar in size to their wavelength, they bend or spread out. This phenomenon is known as diffraction.

Discuss this question


8. In sound waves, the degree of diffraction is proportional to ____.

  1. The wavelength of the sound
  2. The size of the obstruction
  3. Both A and B
  4. None of the mentioned above

Answer: B) The size of the obstruction

Explanation:

The degree of diffraction is proportional to the size of the obstruction. In sound waves, the degree of diffraction is proportional to the wavelength of the sound waves and the size of the obstacle or opening that the sound waves encounter.

Discuss this question


9. Amongst which of the following refers to modifying the difference between the softest and loudest parts of a sound wave?

  1. Dynamic effect
  2. Domino effect
  3. Spectrum effect
  4. Modulation effect

Answer: A) Dynamic effect

Explanation:

Dynamic effect refers to modifying the difference between the softest and loudest parts of a sound wave.

Discuss this question


10. In sound waves, the ____ is the amount of time required for one complete cycle of vibration to occur.

  1. Speed
  2. Period
  3. Phase
  4. Interval

Answer: B) Period

Explanation:

The period is the amount of time required for one complete cycle of vibration to occur. The period is related to the frequency of the sound wave, which is the number of cycles per second, or hertz (Hz). The period and frequency are inversely related, meaning that as the period increases, the frequency decreases, and vice versa.

Discuss this question


11. Amongst which of the following shows the relation between period and frequency?

  1. Period and frequency are directly related to each other
  2. Period and frequency are inversely related to each other
  3. Period and frequency have no relation
  4. None of the mentioned above

Answer: B) Period and frequency are inversely related to each other.

Explanation:

Period and frequency are inversely proportional to one other. The period of a sound wave refers to the time it takes for one complete cycle of the wave to occur. It is usually measured in seconds. The frequency, on the other hand, is the number of cycles of the wave that occur in one second and is measured in hertz (Hz).

Discuss this question


12. The magnitude or amplitude of a sound wave at a certain place in space is represented by ____.

  1. Sound pressure
  2. Sound intensity
  3. Sound energy
  4. None of the mentioned above

Answer: A) Sound pressure

Explanation:

The magnitude or amplitude of a sound wave at a certain place in space is represented by sound pressure.

Discuss this question


13. Sound power level is expressed in ____.

  1. Hertz
  2. Radians
  3. Phon
  4. Decibels

Answer: D) Decibels

Explanation:

Sound power level is expressed in decibels.

Discuss this question


14. Sound intensity is commonly measured in ____.

  1. Hertz
  2. Watt per square meter
  3. Phon
  4. Decibels

Answer: D) Decibels

Explanation:

The unit for sound intensity level in decibels (dB).

Discuss this question


15. What do the higher sound pressure readings suggest?

  1. It suggests that sound waves are stronger or louder
  2. It suggests that sound waves are weak

Answer: A) It suggests that sound waves are stronger or louder.

Explanation:

Higher sound pressure readings suggest that sound waves are stronger or louder.

Discuss this question


16. Sound pressure is proportional to which of the following?

  1. Sound intensity
  2. Sound velocity
  3. Sound energy
  4. None of the mentioned above

Answer: A) Sound intensity

Explanation:

Sound pressure is directly proportional to sound intensity.

Discuss this question


17. Amongst which of the following component captures sound in the environment?

  1. Tympanic membrane
  2. Ossicles
  3. Pinna
  4. None of the mentioned above

Answer: C) Pinna

Explanation:

Pinna is the external ear that aids us to capture sound in the environment. The pinna's distinct form and structure enable it to gather sound waves from its surroundings. As sound waves move through the air, they collide with the pinna's curves and ridges. This contact alters the incoming sound waves, allowing the pinna to selectively amplify or attenuate certain frequencies.

Discuss this question


18. Sound waves go from the pinna to the middle ear via which tube-like structure?

  1. tympanic membrane
  2. ossicles
  3. Eustachian Tube
  4. Ear canal

Answer: D) Ear canal

Explanation:

Sound waves go from the pinna to the middle ear via an ear canal tube-like structure.

Discuss this question


19. Which of the following structures converts sound waves into electrical signals?

  1. tympanic membrane
  2. ossicles
  3. Eustachian Tube
  4. Cochlea

Answer: D) Cochlea

Explanation:

Cochlea structures convert sound waves into electrical signals.

Discuss this question


20. Sound vibrations; transmitted and amplified from the eardrum to the inner ear through ____.

  1. Tympanic membrane
  2. Ossicles
  3. Eustachian Tube
  4. Vestibular System

Answer: B) Ossicles

Explanation:

Sound vibrations are transmitted and amplified from the eardrum to the inner ear through the Ossicles component.

Discuss this question


21. An ____ is a higher frequency that accompanies the fundamental frequency.

  1. Pitch
  2. Velocity
  3. Timbre
  4. Overtone

Answer: D) Overtone

Explanation:

An overtone is a higher frequency that accompanies the fundamental frequency. Overtones, also known as harmonics, are frequencies that occur in addition to the fundamental frequency of a vibrating item. When an item vibrates, the fundamental frequency, which is the lowest and loudest pitch, is principally produced.

Discuss this question


22. Sound vibrations refer to the mechanical oscillations that propagate through a medium, such as air, water, or solids.

  1. True
  2. False

Answer: A) True

Explanation:

Sound vibrations are mechanical oscillations or motions that propagate across a medium, such as air, water, or solids, and allow sound waves to be transmitted.

Discuss this question


23. The feature of a sound that differentiates it from others is referred to as its ____.

  1. Pitch
  2. Velocity
  3. Timbre
  4. Overtone

Answer: C) Timbre

Explanation:

The feature of a sound that differentiates it from others is referred to as its timbre. Timbre refers to the characteristic sound quality or tone of a musical note, sound, or instrument.

Discuss this question


24. How many types of overtones?

  1. 5
  2. 4
  3. 3
  4. 2

Answer: D) 2

Explanation:

There are two types of overtones names Harmonic overtones and Inharmonic overtones.

Discuss this question


25. Amongst which of the following overtones are generally known as natural overtones?

  1. Harmonic overtones
  2. Inharmonic overtones
  3. Both A and B
  4. None of the mentioned

Answer: A) Harmonic overtones

Explanation:

Harmonic overtones are generally known as natural overtones. These are the frequencies that are integer multiples of the fundamental frequency of a vibrating object.

Discuss this question


26. Which of the following is not an example of a harmonic overtone?

  1. Guitar
  2. Flute
  3. Bell
  4. Trumpet

Answer: C) Bell

Explanation:

Bell is an example of a harmonic overtone.

Discuss this question


27. ____ are the frequency ratio distances between two pitches or sounds.

  1. Phase
  2. Intervals
  3. Period
  4. Octaves

Answer: B) Intervals

Explanation:

Intervals are the frequency ratio distances between two pitches or sounds.

Discuss this question


28. Amongst which of the following influences reverberation?

  1. Diffusion
  2. Amplitude
  3. Refraction
  4. Diffraction

Answer: A) Diffusion

Explanation:

Reverberation is the phenomenon of sound persisting after it has been stopped owing to repeated reflections off surfaces within a closed surface, such as furniture, people, air, and so on. Reverberation is influenced by the diffusion of sound waves.

Discuss this question


29. A microphone's polar pattern determines its ____ to sound from various directions.

  1. Distortion
  2. Directivity
  3. Sensitivity
  4. None of the mentioned

Answer: C) Sensitivity

Explanation:

A microphone's polar pattern determines its sensitivity to sound from various directions.

Discuss this question


30. The capacity of a microphone to convert sound into an electrical signal is known as ____.

  1. Distortion
  2. Directivity
  3. Sensitivity
  4. None of the mentioned

Answer: C) Sensitivity

Explanation:

The capacity of a microphone to convert sound into an electrical signal is referred to as sensitivity.

Discuss this question


31. SNR stands for ____.

  1. Sensitivity noise ratio
  2. Signal noise ratio
  3. System noise ratio
  4. Signal-to-noise ratio

Answer: D) Signal-to-noise ratio

Explanation:

SNR stands for signal-to-noise ratio. The signal-to-noise ratio (SNR) is a metric used in communication and measurement systems to quantify the amount of a desired signal in comparison to the level of background noise. It is the ratio of the signal's power or amplitude to the noise's power or amplitude.

Discuss this question


32. A microphone's SNR should be ____ to capture clean and clear audio with little noise interference.

  1. High
  2. Low
  3. Medium
  4. None of the above mentioned

Answer: A) High

Explanation:

A microphone's SNR should be high to capture clean and clear audio with little noise interference.

Discuss this question


33. Amongst which of the following type of microphone collects sound from all directions equally?

  1. Omnidirectional
  2. Cardioid
  3. Dynamic
  4. Shotgun

Answer: A) Omnidirectional

Explanation:

An omnidirectional microphone collects sound from all directions equally. It is designed to capture sound from every angle around it. It is useful for situations where you want to record or capture audio from multiple sources or in a 360-degree environment.

Discuss this question


34. ___ microphones respond best to sound coming from the front and less to sound coming from the sides and rear.

  1. Condenser
  2. Cardioid
  3. Dynamic
  4. Shotgun

Answer: B) Cardioid

Explanation:

Cardioid microphones respond best to sound coming from the front and less to sound coming from the sides and rear.

Discuss this question


35. Which of the following types of microphones is also known as pressure zone microphones?

  1. Lavalier Microphones
  2. Shotgun Microphones
  3. Ribbon Microphones
  4. Boundary Microphones

Answer: D) Boundary Microphones

Explanation:

Boundary Microphones is also known as pressure zone microphone. It is designed to pick up sound with a unique polar pattern and acoustic characteristics. It is also known as a boundary microphone or a pressure plate microphone.

Discuss this question


36. Dynamic microphones are based on which principle?

  1. Superposition
  2. Electromagnetic induction
  3. Electromagnetism
  4. Wave-particle duality

Answer: B) Electromagnetic induction

Explanation:

Dynamic microphones work on electromagnetic induction. Electromagnetic induction is a phenomenon that occurs when a conductor is subjected to a changing magnetic field and induces an electric current in it. Electromagnetic induction is used by dynamic microphones to transform sound waves into electrical impulses.

Discuss this question


37. Among dynamic microphones and condenser microphones, which is more sensitive and precise?

  1. Dynamic microphones
  2. Condenser microphones
  3. Both A and B
  4. None of the above mentioned

Answer: B) Condenser microphones

Explanation:

When compared to dynamic microphones, condenser microphones are more sensitive and precise. It is a type of microphone that converts sound waves into electrical signals using a capacitor. It's common in professional audio recording, broadcasting, and live sound reinforcement.

Discuss this question


38. Shotguns microphones are ____ microphones.

  1. Omnidirectional
  2. Directional
  3. Both A and B
  4. None of the above mentioned

Answer: B) Directional

Explanation:

Shotguns microphones are directional microphones.

Discuss this question


39. Which component in microphones is a thin, flexible membrane that responds to sound by vibrating?

  1. Transducer
  2. Capsule
  3. Diaphragm
  4. Preamp

Answer: C) Diaphragm

Explanation:

A diaphragm is a thin, flexible membrane that responds to sound by vibrating.

Discuss this question


40. The ____ component turns the diaphragm's mechanical vibrations into electrical impulses.

  1. Transducer
  2. Capsule
  3. Connector
  4. Preamp

Answer: A) Transducer

Explanation:

The transducer is the component that turns the diaphragm's mechanical vibrations into electrical impulses.

Discuss this question


41. Which of the following microphones is resistant to moisture?

  1. Dynamic microphones
  2. Condenser microphones
  3. Capacitor microphones
  4. Crystal microphone

Answer: D) Crystal microphone

Explanation:

A Crystal microphone is resistant to moisture. It is a type of microphone that uses the piezoelectric effect to transform sound waves into electrical impulses. The capacity of some materials to create an electric charge when subjected to mechanical stress or pressure is referred to as the piezoelectric effect.

Discuss this question


42. The ____ of a loudspeaker is a measurement of how well it transforms electrical power into sound output.

  1. Impedance
  2. Sensitivity
  3. Power handling
  4. Frequency response

Answer: B) Sensitivity

Explanation:

The sensitivity of a loudspeaker is a measurement of how well it transforms electrical power into sound output. A loudspeaker's sensitivity is a measure of its efficiency in converting electrical power into sound pressure level (SPL). It denotes how loud a speaker may get when powered by a specific quantity of power.

Discuss this question


43. Loudspeaker's impedance is usually measured in ____.

  1. Watts
  2. Pascals
  3. Phon
  4. Ohm's

Answer: D) Ohm's

Explanation:

Measuring the impedance of a loudspeaker typically involves using an impedance meter or an ohmmeter.

Discuss this question


44. Loudspeakers designed for the reproduction of low-frequency sounds, typically below 100 Hz, are known as ____.

  1. Dynamic loudspeakers
  2. Full-range loudspeakers
  3. Subwoofers
  4. Horn loudspeakers

Answer: C) Subwoofers

Explanation:

Loudspeakers designed for the reproduction of low-frequency sounds, typically below 100 Hz, are known as Subwoofers.

Discuss this question


45. In which type of loudspeaker; a thin, electrically charged diaphragm is positioned between two stator panels?

  1. Dynamic loudspeakers
  2. Full-range loudspeakers
  3. Electrostatic loudspeakers
  4. Horn loudspeakers

Answer: C) Electrostatic loudspeakers

Explanation:

A thin, electrically charged diaphragm is positioned between two stator panels in electrostatic loudspeakers.

Discuss this question


46. Amongst which of the following types of directivities of loudspeakers are frequently employed where sound must be focused in a specific zone?

  1. Unidirectional
  2. Omnidirectional
  3. Bipolar
  4. Horn-loaded

Answer: A) Unidirectional

Explanation:

Unidirectional speakers are frequently employed in circumstances where sound must be focused in a specific zone.

Discuss this question


47. ____ loudspeakers emit sound both forward and backward.

  1. Unidirectional
  2. Omnidirectional
  3. Bipolar or dipolar
  4. Horn-loaded

Answer: C) Bipolar or dipolar

Explanation:

Bipolar or dipolar loudspeakers emit sound in both forward and backward directions. These loudspeakers are designed for audio systems. They are known for their ability to create a more immersive soundstage and spaciousness compared to conventional monopole speakers.

Discuss this question


48. Which of the following components in a loudspeaker is a protective cover positioned in the center of the diaphragm?

  1. Magnet assembly
  2. Dust dome
  3. Frame
  4. Voice coil

Answer: B) Dust dome

Explanation:

The dust cap, often known as the dust dome, is a protective cover positioned in the center of the diaphragm.

Discuss this question


49. All the components of the loudspeaker are housed within the loudspeaker ____.

  1. Magnet assembly
  2. Suspension system
  3. Frame
  4. Voice coil

Answer: C) Frame

Explanation:

All the components of the loudspeaker are housed within the loudspeaker frame, also known as the chassis.

Discuss this question


50. In a multi-way speaker system, the crossover network is made up of ____ electrical components.

  1. Active electrical components
  2. Passive electrical components
  3. Both A and B
  4. None of the mentioned above

Answer: B) Passive electrical components

Explanation:

In a multi-way speaker system, the crossover network is made up of passive electrical components such as capacitors, inductors, and resistors.

Discuss this question


51. The crossover network includes which of the following?

  1. HPF
  2. LPF
  3. BPF
  4. All of the above mentioned

Answer: D) All of the above mentioned

Explanation:

High-pass, low-pass, and band-pass filters are commonly used in crossover networks. It is a system that is used to divide an audio signal into different frequency bands and direct each band to the appropriate speaker or driver.

Discuss this question


52. Optical recording uses ____ storage media.

  1. Reel-to-reel audio tape
  2. Cassette tape
  3. Disc type
  4. Betamax tape

Answer: C) Disc type

Explanation:

Optical recording uses disc-like storage media like compact discs (CDs).

Discuss this question


53. An ____ is a type of electrical device that boosts the loudness of an audio stream.

  1. Audio amplifier
  2. Echo reverberation
  3. Time reverberation
  4. Acoustic reverberation

Answer: A) Audio amplifier

Explanation:

An audio amplifier is a type of electrical device that boosts the loudness of an audio stream.

Discuss this question


54. Analog-to-digital converters (ADCs) are used in disk-based recording to transform audio impulses into digital data?

  1. True
  2. False

Answer: A) True

Explanation:

Analog-to-digital converters (ADCs) are used in disk-based recording to transform audio impulses into digital data.

Discuss this question


55. ____ is the technique of collecting and presenting lines of an image or picture on a television screen in a sequential manner.

  1. Framing
  2. Scanning
  3. Flickering
  4. Signaling

Answer: B) Scanning

Explanation:

Scanning is the technique of collecting and presenting lines of an image or picture on a television screen in a sequential manner.

Discuss this question


56. Which of the following scanning methods is employed in the Analog television system?

  1. Interlaced scanning
  2. Progressive scanning
  3. Both A and B
  4. None of the above mentioned

Answer: A) Interlaced scanning

Explanation:

Interlaced scanning method is employed in Analog television systems. It displays and transmits images on a screen or through a video signal. It was commonly used in older cathode ray tube (CRT) televisions and some older video formats.

Discuss this question


57. Which scanning method only displays half of the lines at once?

  1. Interlaced scanning
  2. Progressive scanning
  3. Both A and B
  4. None of the above mentioned

Answer: A) Interlaced scanning

Explanation:

Interlaced scanning method only displays half of the lines at once.

Discuss this question


58. A screen contains more pixels while the displayed image has less detail.

  1. True
  2. False

Answer: B) False

Explanation:

The more pixels a screen contains while the displayed image the more detail and clarity.

Discuss this question


59. The color information in the video stream is represented by ____.

  1. Luminance
  2. Synchronization signals
  3. Chrominance
  4. None of the above mentioned

Answer: C) Chrominance

Explanation:

The color information in the video stream is represented by chrominance. Color is made up of two primary components in color theory: Luminance and chrominance. The Luminance of the color is referred to as luminance, while the hue and saturation are referred to as chrominance.

Discuss this question


60. The overall intensity or grayscale values of a picture are determined by ____.

  1. Luminance
  2. Synchronization signals
  3. Chrominance
  4. All of the above mentioned

Answer: A) Luminance

Explanation:

The overall intensity or grayscale values of a picture are determined by luminance. It refers to a color's brightness or intensity. It denotes the quantity of light emitted or reflected by a color. Luminance is a fundamental feature of color perception and plays a significant part in designing contrast and visual hierarchy.

Discuss this question




Comments and Discussions!

Load comments ↻





Copyright © 2024 www.includehelp.com. All rights reserved.