Acoustics And Lighting Pre-midterm Quiz

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  • 1/59 Questions

    The scientific study of sound perception.

    • Musical Acoustics
    • Engineering Acoustics
    • Psycho Acoustics
    • Physical Acoustics
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About This Quiz

This quiz covers the basics of acoustics and lighting, focusing on sound perception, generation, detection, environmental effects, and architectural sound phenomena.

Acoustics And Lighting Pre-midterm Quiz - Quiz

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  • 2. 

    It deals with the generation and detection of audible sound waves, including sound reproduction.

    • Architectural Acoustics

    • Electro Acoustics

    • Musical Acoustics

    • Structural Acoustics and Vibration

    Correct Answer
    A. Electro Acoustics
    Explanation
    Electro Acoustics is the correct answer because it specifically focuses on the generation and detection of audible sound waves, as well as sound reproduction. This field combines principles of electrical engineering and acoustics to study the interaction between electrical signals and sound waves. It involves the design and development of audio systems, such as microphones, speakers, and amplifiers, as well as the study of how electrical signals are converted into sound waves and vice versa.

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  • 3. 

    Deals with sounds at frequencies too high to be heard by humans.

    • Electro Acoustics

    • Hertz

    • Sonics

    • Psycho Acoustics

    Correct Answer
    A. Sonics
    Explanation
    Sonics is the correct answer because it refers to the study or science of sound, including the production, transmission, and effects of sound waves. It specifically deals with sounds at frequencies that are too high to be heard by humans, which aligns with the given explanation. Electro Acoustics focuses on the interaction between electrical signals and acoustic waves, Hertz is a unit of frequency measurement, and Psycho Acoustics deals with the psychological and physiological responses to sound.

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  • 4. 

    Deals with the effects of the environment upon audible sound waves.

    • Musical Acoustics

    • Physical Acoustics

    • Signal Processing in Acoustics

    • Environmental Acoustics

    Correct Answer
    A. Environmental Acoustics
    Explanation
    Environmental Acoustics deals with the effects of the environment on audible sound waves. It focuses on how sound waves interact with various elements in the environment such as buildings, landscapes, and atmospheric conditions. This field of study helps in understanding how sound travels, gets reflected or absorbed, and how it is affected by factors like temperature, humidity, and wind. It also involves studying the impact of human activities on the environment and how they contribute to noise pollution.

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  • 5. 

    Environmental noise and soundscapes; concerned with noise and vibration caused by traffic, aircraft, industrial equipment and recreational activities

    • Musical Acoustics

    • Engineering Acoustics

    • Landscape Acoustics

    • Psychological-Physiological Acoustics

    Correct Answer
    A. Landscape Acoustics
    Explanation
    Landscape Acoustics is the correct answer because it refers to the study of sound in outdoor environments, specifically focusing on how sound interacts with the physical features of the landscape. This includes analyzing how sound is affected by natural elements such as terrain, vegetation, and water bodies, as well as man-made structures like buildings and roads. It also involves assessing the impact of sound on the overall aesthetic and quality of outdoor spaces.

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  • 6. 

    The science of sound phenomena in buildings, dealing with the production, transmission, and absorption of sound.

    • Architectural Acoustics

    • Engineering Acoustics

    • Structural Acoustics and Vibration

    • Acoustical Oceanography

    Correct Answer
    A. Architectural Acoustics
    Explanation
    Architectural acoustics is the correct answer because it specifically focuses on the science of sound phenomena in buildings. It involves studying how sound is produced, transmitted, and absorbed within a building environment. This field is concerned with creating optimal acoustic conditions in various architectural spaces, such as concert halls, theaters, and recording studios. By understanding architectural acoustics, architects and designers can ensure that sound quality and clarity are maximized, minimizing issues such as echoes, reverberation, and noise transmission.

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  • 7. 

    Which element will sound travel at 344m/s through?

    • Air

    • Water

    • Wood

    • Steel

    Correct Answer
    A. Air
    Explanation
    Sound travels through different mediums at different speeds. In this case, the correct answer is air because sound travels at approximately 344 meters per second through air. Water, wood, and steel are denser materials compared to air, and sound travels slower through them.

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  • 8. 

    The rate at which sound energy is being transmitted, measured at any point in the medium;  sound power per unit area

    • Hertz

    • Velocity

    • Intensity

    • Volume

    Correct Answer
    A. Intensity
    Explanation
    Intensity is the correct answer because it refers to the rate at which sound energy is being transmitted and is measured at any point in the medium. It represents the sound power per unit area, indicating how strong or weak a sound is. Hertz, velocity, and volume are not appropriate choices as they do not directly measure the rate of sound energy transmission or sound power per unit area.

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  • 9. 

    Sound travels at 360m/s at normal room temperature (68 degF)

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Sound does not travel at a fixed speed at normal room temperature. The speed of sound depends on various factors such as the medium through which it is traveling, temperature, and humidity. In general, sound travels faster in solids and liquids compared to gases. At room temperature, the speed of sound in air is approximately 343 meters per second. Therefore, the given statement that sound travels at 360m/s at normal room temperature is false.

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  • 10. 

    The fluctuation in the atmospheric pressure caused by the vibration of air particles due to a sound wave.

    • Threshold of Audibility

    • Sound Pressure

    • Loudness

    • Threshold of Pain

    Correct Answer
    A. Sound Pressure
    Explanation
    Sound pressure refers to the variation in air pressure caused by a sound wave. When a sound is produced, it creates a disturbance in the air particles, causing them to vibrate. These vibrations create fluctuations in the atmospheric pressure, which can be measured as sound pressure. The amplitude of the sound wave determines the magnitude of the sound pressure, with higher amplitudes resulting in louder sounds. Therefore, sound pressure is a measure of the intensity or strength of a sound wave.

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  • 11. 

    Minimum intensity that is capable of evoking an auditory sensation in the ear

    • Threshold of Audibility

    • Sound Pressure

    • Loudness

    • Threshold of Pain

    Correct Answer
    A. Threshold of Audibility
    Explanation
    The correct answer is "Threshold of Audibility." This refers to the minimum intensity of sound that can be detected by the ear, resulting in an auditory sensation. It is the point at which sound becomes just barely perceptible to the human ear.

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  • 12. 

    The subjective attribute of an auditory sensation.

    • Threshold of Audibility

    • Sound Pressure

    • Loudness

    • Threshold of Pain

    Correct Answer
    A. Loudness
    Explanation
    Loudness refers to the subjective attribute of an auditory sensation. It is the perception of the intensity or volume of a sound. It is a measure of how loud or soft a sound is perceived to be by an individual. The loudness of a sound is determined by the sound pressure level, which is the physical measurement of the intensity of sound waves. The threshold of audibility refers to the minimum sound pressure level that can be detected by the human ear, while the threshold of pain is the maximum sound pressure level that can be tolerated without causing discomfort or damage.

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  • 13. 

    Minimum sound pressure level which stimulates the ear to a point which is painful.

    • Threshold of Audibility

    • Sound Pressure

    • Loudness

    • Threshold of Pain

    Correct Answer
    A. Threshold of Pain
    Explanation
    The correct answer is "Threshold of Pain". The minimum sound pressure level that stimulates the ear to a point which is painful is referred to as the threshold of pain. This means that when the sound reaches a certain intensity, it becomes physically uncomfortable or even painful for the listener. It is an important concept in understanding the limits of human hearing and the potential harm that can be caused by excessive noise levels.

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  • 14. 
    The distance a sound wave travels during each complete cycle of vibration (λ). - ProProfs

    The distance a sound wave travels during each complete cycle of vibration (λ).

    • Amplitude

    • Wavelength

    • Frequency

    • Tone

    Correct Answer
    A. Wavelength
    Explanation
    Wavelength refers to the distance a sound wave travels during each complete cycle of vibration. It is the physical distance between two consecutive points in a wave that are in phase, such as the distance between two consecutive peaks or two consecutive troughs. Wavelength is an important characteristic of a sound wave and is directly related to its frequency, as the wavelength decreases with an increase in frequency.

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  • 15. 
    The strength or power of a wave signal. The "height" of a wave when viewed as a graph. - ProProfs

    The strength or power of a wave signal. The "height" of a wave when viewed as a graph.

    • Amplitude

    • Wavelength

    • Frequency

    • Tone

    Correct Answer
    A. Amplitude
    Explanation
    Amplitude refers to the strength or power of a wave signal. In the context of a graph, it represents the "height" of a wave. It is a measure of the maximum displacement of particles in the medium from their equilibrium position when a wave passes through. A higher amplitude indicates a more powerful or stronger wave signal, while a lower amplitude indicates a weaker signal.

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  • 16. 

    The attribute of an auditory system which enables us to pinpoint sounds on a scale extending from high to low frequencies

    • Hertz

    • Timbre

    • Pitch

    • Tone

    Correct Answer
    A. Pitch
    Explanation
    Pitch refers to the perceived frequency of a sound. It is the attribute of an auditory system that allows us to distinguish between high and low frequencies. By perceiving pitch, we can pinpoint sounds on a scale extending from high to low frequencies. Hertz, timbre, and tone are related to sound but do not specifically refer to the ability to pinpoint sounds on a frequency scale.

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  • 17. 

    A steady periodic sound; a sensation having pitch

    • Hertz

    • Timbre

    • Pitch

    • Tone

    Correct Answer
    A. Tone
    Explanation
    A tone refers to a steady periodic sound that is produced by a vibrating object or instrument. It is characterized by its pitch, which is the sensation of highness or lowness of a sound. Timbre, on the other hand, refers to the quality or color of a sound, while Hertz is the unit used to measure frequency. Although all of these terms are related to sound, the best choice that fits the given description is "Tone."

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  • 18. 

    Combination of the number, prominence, pitch, and intensity of the overtones

    • Hertz

    • Timbre

    • Pitch

    • Tone

    Correct Answer
    A. Timbre
    Explanation
    Timbre refers to the quality or character of a sound that distinguishes it from other sounds of the same pitch and volume. It is determined by the combination of various factors such as the number, prominence, pitch, and intensity of the overtones present in a sound. In other words, timbre is what makes a sound unique and allows us to differentiate between different musical instruments or voices, even when they are playing or singing the same note at the same volume.

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  • 19. 

    Unit of Frequency.

    • Hertz

    • Timbre

    • Pitch

    • Tone

    Correct Answer
    A. Hertz
    Explanation
    Hertz is the correct answer because it is the unit of frequency. Frequency refers to the number of cycles or vibrations per second in a sound wave. Hertz is commonly used to measure the frequency of sound waves, as well as other types of waves such as radio waves and electromagnetic waves. Timbre, pitch, and tone are all characteristics of sound, but they are not units of frequency.

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  • 20. 

    All are methods of Sound Absorption except:

    • Frictional

    • Flexural

    • Diffusion

    • Resonating

    Correct Answer
    A. Diffusion
    Explanation
    Sound absorption refers to the process of reducing the reflection of sound waves, thereby reducing the overall sound level in a space. Frictional, flexural, and resonating are all methods of sound absorption as they involve the absorption of sound energy through various mechanisms. Diffusion, on the other hand, refers to the scattering of sound waves in different directions, rather than absorbing them. Therefore, diffusion is not a method of sound absorption.

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  • 21. 

    All are ways to diffuse sound except:

    • Providing several surface irregularities.

    • Providing ceramic materials (e.i. tiles) on walls.

    • Providing an alternating application of reflective and absorptive finishes.

    • Providing a random application of reflective and absorptive finishes

    Correct Answer
    A. Providing ceramic materials (e.i. tiles) on walls.
    Explanation
    Providing ceramic materials (e.g. tiles) on walls is not a way to diffuse sound because ceramic materials are typically hard and reflective, which means they tend to reflect sound rather than absorb or scatter it. Diffusing sound involves breaking up sound waves and scattering them in different directions to reduce echo and reverberation. Surface irregularities, alternating application of finishes, and random application of finishes can help achieve this by creating diffusive surfaces that scatter sound waves.

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  • 22. 

    Law of REFLECTIVITY: the Angle of Incidence more than theangle of reflection

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because according to the law of reflectivity, the angle of incidence is always equal to the angle of reflection. This means that when a ray of light strikes a surface and reflects off it, the angle at which it hits the surface is always equal to the angle at which it bounces off.

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  • 23. 

    Change of sound wave direction as it moves from one material to another of different density.

    • Sound Refraction

    • Sound Diffusion

    • Sound Reflectivity

    • Sound Diffraction

    Correct Answer
    A. Sound Refraction
    Explanation
    Sound refraction refers to the change in the direction of a sound wave as it passes from one medium to another with a different density. This change in direction occurs due to the variation in the speed of sound in different materials. When the sound wave encounters a boundary between two materials, it can bend or change its path, leading to the phenomenon of sound refraction.

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  • 24. 

    Sound which penetrates through a surface.

    • Sound Reflectivity

    • Sound Transmission

    • Sound Refraction

    • Sound Deflection

    Correct Answer
    A. Sound Transmission
    Explanation
    Sound transmission refers to the ability of sound waves to pass through a surface or material. When sound waves encounter a surface, they can either be reflected, absorbed, or transmitted. In the case of sound transmission, the waves are able to penetrate through the surface and continue propagating on the other side. This can occur when the surface is thin, porous, or not well-insulated. Sound transmission is an important factor to consider in various situations, such as in building construction or noise control, as it can impact the level of sound that is heard on either side of the surface.

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  • 25. 

    Time for the sound pressure in a room to decrease 60db after the sound is stopped

    • Noise Reduction

    • Transmission Loss

    • Reverberation Time

    • Optimum RT

    Correct Answer
    A. Reverberation Time
    Explanation
    Reverberation time refers to the time it takes for the sound pressure in a room to decrease by 60dB after the sound source is stopped. It is a measure of how long a sound persists in a space after it is produced. A longer reverberation time indicates more reflections and a more "live" or echoey sound, while a shorter reverberation time indicates a more "dead" or absorptive sound environment. Therefore, in this context, reverberation time is the correct answer as it directly relates to the given scenario.

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  • 26. 

    The level of attenuation provided by the building construction between two rooms

    • Noise Reduction

    • Transmission Loss

    • Reverberation Time

    • Optimum RT

    Correct Answer
    A. Noise Reduction
    Explanation
    The level of attenuation provided by the building construction between two rooms refers to the reduction of noise as it travels from one room to another. This can be achieved through various methods such as using soundproof materials, sealing gaps and cracks, and adding insulation. Noise Reduction is the correct answer as it accurately describes the process of reducing the intensity of sound between two rooms by the building's construction.

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  • 27. 

    The level of sound isolation provided by a construction, independent of the effects of wall size or room absorption

    • Noise Reduction

    • Transmission Loss

    • Reverberation Time

    • Optimum RT

    Correct Answer
    A. Transmission Loss
    Explanation
    Transmission Loss refers to the level of sound isolation provided by a construction, independent of the effects of wall size or room absorption. It measures how much sound is reduced as it passes through a barrier, such as a wall or floor. A higher transmission loss indicates better sound isolation, as less sound is transmitted from one side of the barrier to the other. Therefore, Transmission Loss is the correct answer in this context.

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  • 28. 

    The most favorable reverberation time for a particular space and volume.

    • Noise Reduction

    • Transmission Loss

    • Reverberation Time

    • Optimum RT

    Correct Answer
    A. Optimum RT
    Explanation
    The most favorable reverberation time for a particular space and volume is referred to as the optimum RT. This means that the reverberation time in that space and volume is ideal for producing the desired acoustic characteristics. The optimum RT ensures that the sound reflections and decay in the space are balanced, resulting in clear and pleasant sound quality. It is important to consider the optimum RT when designing or evaluating the acoustics of a room or venue to achieve the desired sound experience.

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  • 29. 

    Also referred to as Creep. High frequency sounds creeping along large concave surfaces such as a hemispherical dome , elliptical or ellipsoidal enclosure

    • Echo

    • Whispering Gallery

    • Distortion

    • Sound Shadow

    Correct Answer
    A. Whispering Gallery
    Explanation
    A whispering gallery is a term used to describe a space or structure where sound waves can travel along curved surfaces, such as a hemispherical dome or an elliptical enclosure. This phenomenon allows high frequency sounds to "creep" or propagate along these surfaces, creating a unique acoustic effect. The term "whispering gallery" is often used to refer to specific architectural structures, such as the Whispering Gallery in St. Paul's Cathedral in London, where whispered sounds can be heard clearly across the gallery due to the curved shape of the dome.

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  • 30. 

    Occurs when an area does not receive an adequate amount of direct sound

    • Sound Shadow

    • Whispering Gallery

    • Distortion

    • Echo

    Correct Answer
    A. Sound Shadow
    Explanation
    A sound shadow occurs when an area does not receive an adequate amount of direct sound. This means that the sound waves are blocked or absorbed by objects or obstacles in the environment, preventing them from reaching the area. As a result, the area experiences a lack of sound or a reduced volume compared to other areas. This phenomenon is commonly observed in spaces with uneven surfaces, corners, or barriers that obstruct the path of sound waves.

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  • 31. 

    The basic acoustical characteristic of these materials is a cellular network of interlocking pores

    • Sound Diffuser

    • Cavity (Helmholtz) Resonators

    • Panel or Membrane Absorbers

    • Porous Materials

    Correct Answer
    A. Porous Materials
    Explanation
    Porous materials have a cellular network of interlocking pores, which is their basic acoustical characteristic. This allows sound waves to enter the material and get trapped within the pores, leading to absorption and attenuation of the sound energy. As a result, porous materials are commonly used in various applications, such as soundproofing, noise control, and acoustic treatment, to reduce unwanted echoes, reverberation, and overall sound levels in a space.

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  • 32. 

    Impervious material installed in a solid backing but separated from it by an air space.

    • Sound Diffuser

    • Cavity (Helmholtz) Resonators

    • Panel or Membrane Absorbers

    • Porous Materials

    Correct Answer
    A. Panel or Membrane Absorbers
    Explanation
    Panel or membrane absorbers are impervious materials that are installed in a solid backing but separated from it by an air space. These absorbers are designed to absorb sound energy by converting it into heat through the vibration of the panel or membrane. The air space between the absorber and the solid backing helps to improve the absorption performance by allowing sound waves to pass through and be absorbed by the panel or membrane. This design allows for effective sound absorption and helps to reduce echo and reverberation in a space.

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  • 33. 

    Materials that consist of an enclosed body of air, confined within rigid walls and connected by a narrow opening to the surroundings space.

    • Sound Diffuser

    • Cavity (Helmholtz) Resonators

    • Panel or Membrane Absorbers

    • Porous Materials

    Correct Answer
    A. Cavity (Helmholtz) Resonators
    Explanation
    Cavity (Helmholtz) resonators are materials that consist of an enclosed body of air, confined within rigid walls and connected by a narrow opening to the surrounding space. This design allows for the absorption of sound waves at specific frequencies, as the air inside the resonator vibrates in response to the sound waves. This vibration helps to dissipate the sound energy and reduce its reflection, making cavity resonators effective in sound absorption and diffusion applications.

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  • 34. 

    Picks up the sound energy radiated by the source, converts it into electric energy and feeds it into the amplifier

    • Microphone

    • Amplifier

    • Loudspeakers

    • Tweeters

    Correct Answer
    A. Microphone
    Explanation
    A microphone is a device that picks up sound energy from a source, such as a person speaking, and converts it into electric energy. This electric energy is then fed into an amplifier, which increases the power of the signal. The amplifier then sends the amplified signal to the loudspeakers or tweeters, which produce sound waves that can be heard by the audience. Therefore, the microphone is responsible for capturing the sound and converting it into a usable electric signal.

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  • 35. 

    Increases magnitude of the electric signal; delivers it to the loudspeaker. May include separate mixers.

    • Microphone

    • Amplifier

    • Loudspeakers

    • Tweeters

    Correct Answer
    A. Amplifier
    Explanation
    An amplifier is used to increase the magnitude of the electric signal received from the microphone. It boosts the signal strength so that it can be delivered to the loudspeakers. The amplifier may also include separate mixers, which allow for additional control and adjustment of the audio signal before it is sent to the loudspeakers.

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  • 36. 

    Converts the electric signal into airborne sound waves for distribution to the listeners.

    • Microphone

    • Amplifier

    • Loudspeakers

    • Tweeters

    Correct Answer
    A. Loudspeakers
    Explanation
    Loudspeakers are devices that convert an electric signal into sound waves that can be heard by listeners. They are responsible for distributing the sound in the air, allowing it to be heard in a room or an outdoor area. Amplifiers are used to increase the power of the electric signal, while tweeters are a type of loudspeaker that produces high-frequency sounds. Therefore, the correct answer is loudspeakers as they are specifically designed to convert the electric signal into airborne sound waves for distribution to the listeners.

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  • 37. 

    Uses a single cluster of loudspeakers over the sound source.  The preferred type because it gives maximum realism.

    • Combination Central- Distributed Loudspeaker System

    • Stereophonic System

    • Central Loud Speaker System

    • Distributed Loud Speaker System

    Correct Answer
    A. Central Loud Speaker System
    Explanation
    The central loudspeaker system is the preferred type because it uses a single cluster of loudspeakers placed centrally over the sound source. This setup allows for maximum realism in sound reproduction as the sound is projected from a single point, creating a more focused and immersive listening experience.

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  • 38. 

    Uses a cluster of loudspeakers over the sound source, plus additional speakers at the rear end of the hall or under balconies

    • Combination Central- Distributed Loudspeaker System

    • Stereophonic System

    • Central Loud Speaker System

    • Distributed Loud Speaker System

    Correct Answer
    A. Combination Central- Distributed Loudspeaker System
    Explanation
    A combination central-distributed loudspeaker system uses a cluster of loudspeakers over the sound source, as well as additional speakers at the rear end of the hall or under balconies. This setup allows for a more immersive and balanced sound experience throughout the entire venue. By combining both central and distributed speakers, the system can provide clear and even sound coverage to all areas of the hall, ensuring that the audience can hear the audio without any distortion or imbalance.

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  • 39. 

    Home Theater Systems have FIVE basic components:

    Correct Answer
    Receivers
    Displays
    Speakers
    Connections
    Sources
    Explanation
    The given answer correctly identifies the five basic components of a home theater system, which are receivers, displays, speakers, connections, and sources. Receivers are responsible for receiving audio and video signals and sending them to the appropriate components. Displays refer to the screen or projector used to display the video. Speakers are necessary for audio output. Connections include cables and wires that connect the different components together. Sources are the devices that provide the audio and video signals, such as Blu-ray players or streaming devices.

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  • 40. 
    This type of Decorative Accent - ProProfs

    This type of Decorative Accent

    • Coffer Lighting

    • Cove Lighting

    • Down Lighting

    • Up Lighting

    Correct Answer
    A. Cove Lighting
    Explanation
    Cove lighting refers to a type of decorative accent lighting that is installed along the upper perimeter of a room or on ledges and recesses. It is designed to provide indirect lighting, creating a soft and diffused glow that enhances the ambiance of a space. Cove lighting is often used to highlight architectural details, create a sense of depth, or add a touch of elegance to a room. It can be used in both residential and commercial settings and is a popular choice for creating a warm and inviting atmosphere.

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  • 41. 
    This type of Decorative Accent - ProProfs

    This type of Decorative Accent

    • Coffer Lighting

    • Cove Lighting

    • Down Lighting

    • Up Lighting

    Correct Answer
    A. Coffer Lighting
    Explanation
    Coffer lighting refers to a type of decorative accent that involves recessed or sunken panels in the ceiling, which are often illuminated to create a visually appealing effect. This type of lighting adds depth and dimension to a room by highlighting the architectural details of the ceiling. It is commonly used in high-end residential and commercial spaces to create a luxurious and sophisticated ambiance.

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  • 42. 
    This type of Decorative Accent - ProProfs

    This type of Decorative Accent

    • Coffer Lighting

    • Cove Lighting

    • Down Lighting

    • Up Lighting

    Correct Answer
    A. Down Lighting
    Explanation
    Down lighting refers to a type of decorative accent lighting where the light is directed downwards, illuminating the area below. This type of lighting is commonly used to highlight specific objects or areas, create a sense of depth and dimension, and provide a soft and subtle ambiance. It is often used in residential and commercial settings to create a warm and inviting atmosphere.

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  • 43. 

    Lumens/ SF = ______

    • Luminance

    • Footcandles

    • Coefficient of Utilization (CU)

    • Illuminance (E)

    Correct Answer
    A. Footcandles
    Explanation
    Footcandles is the correct answer because it is a unit used to measure illuminance, which is the amount of light falling on a surface. Lumens per square foot (Lumens/SF) is a common way to express illuminance, and footcandles is another unit that represents the same concept. Therefore, Lumens/SF is equivalent to footcandles.

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  • 44. 

    Lamp Lumens x CU / Area = ______

    • Luminance

    • Footcandles

    • Coefficient of Utilization (CU)

    • Illuminance (E)

    Correct Answer
    A. Illuminance (E)
    Explanation
    The given formula Lamp Lumens x CU / Area calculates the illuminance (E) of a space. Illuminance refers to the amount of light that falls on a surface and is measured in lux or footcandles. The formula takes into account the lamp lumens, which is the total amount of light emitted by the lamp, and the coefficient of utilization (CU), which represents the efficiency of the lighting system in distributing the light. Dividing the lamp lumens by the area gives the illuminance, which indicates the brightness or intensity of the light in the space.

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  • 45. 

    Lamp Lumens x CU = ______

    • Luminance

    • Lumens on Workplane

    • Coefficient of Utilization (CU)

    • Illuminance (E)

    Correct Answer
    A. Lumens on Workplane
    Explanation
    The equation Lamp Lumens x CU = Lumens on Workplane represents the relationship between the luminous flux of a lamp (measured in lumens) and the coefficient of utilization (CU) of a lighting system. The product of these two values gives the amount of lumens that actually reach the workplane, which is the surface where the illumination is needed. This equation is used to calculate the effective light output of a lamp in a specific lighting installation, taking into account the efficiency of the system.

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  • 46. 

    4 Stages in Lighting Design

    Correct Answer
    Conceptualizing
    Scheming
    Developing
    Finalizing
    Explanation
    This answer correctly identifies the four stages in lighting design: conceptualizing, scheming, developing, and finalizing. These stages represent the sequential process that lighting designers go through to create a lighting design. Conceptualizing involves generating ideas and concepts for the design. Scheming involves creating detailed plans and layouts for the lighting setup. Developing involves implementing and refining the design, while finalizing involves completing any necessary adjustments and preparing the design for implementation.

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  • 47. 
    This Stage of Lighting Design consists of Making a Building Program, Identifying Task Analysis and Preliminary Design - ProProfs

    This Stage of Lighting Design consists of Making a Building Program, Identifying Task Analysis and Preliminary Design

    • Scheming

    • Conceptualizing

    • Developing

    • Finalizing

    Correct Answer
    A. Conceptualizing
    Explanation
    The correct answer is Conceptualizing. In the stage of conceptualizing in lighting design, the designer focuses on creating a concept or idea for the lighting design based on the building program and task analysis. This involves brainstorming and developing initial design concepts that align with the project goals and requirements. This stage is crucial for establishing the overall direction and vision for the lighting design before moving on to the more detailed development and finalization stages.

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  • 48. 
    This Stage of Lighting Design consists of Preliminary Design and Detailed Design - ProProfs

    This Stage of Lighting Design consists of Preliminary Design and Detailed Design

    • Scheming

    • Conceptualizing

    • Developing

    • Finalizing

    Correct Answer
    A. Scheming
    Explanation
    The correct answer is "Scheming." In the stage of lighting design, scheming involves both the preliminary design and detailed design. It includes conceptualizing ideas and developing them further to create a final lighting design plan. This stage is crucial as it lays the foundation for the overall lighting design process, allowing designers to explore different concepts and finalize the most suitable design approach.

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  • 49. 
    This Stage of Lighting Design consists of Detailed Calculations - ProProfs

    This Stage of Lighting Design consists of Detailed Calculations

    • Scheming

    • Conceptualizing

    • Developing

    • Finalizing

    Correct Answer
    A. Developing
    Explanation
    Developing is the correct answer because at this stage of lighting design, detailed calculations are performed. This involves determining the appropriate lighting levels, fixture placement, and power requirements for the project. It is a crucial step in the design process as it ensures that the lighting design meets the necessary technical and functional requirements. Scheming and conceptualizing are earlier stages where initial ideas and concepts are explored, while finalizing is the last stage where the design is reviewed and approved.

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Quiz Review Timeline (Updated): Feb 14, 2024 +

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  • Current Version
  • Feb 14, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 11, 2015
    Quiz Created by
    Dwmmaligalig

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