AVIXA CTS EXAM
In a digital signal, the on state is represented by _______, and the off state is represented by
_______.
A. Two; one
B: One; two
C: Zero; one
D: One, zero - Answer- D: One, zero
What is the unit of luminous flux - the quantity of photons emitted from a 1 candela light source
through an area of 1 square meter on a sphere 1 meter in radius surrounding that light source?
A: Foot-candle
B: Nit
C: Lux
D: Lumen - Answer- D: Lumen
A signal that has many varying states is called a(n) _______ signal.
A: Analog
B: Fluctuating
C: Dimmer
D: Digital - Answer- A: Analog
Bit depth is defined as the number of _______ you have in which to describe the value.
A: Signals
B: Speeds
C: States
D: Rates - Answer- C: States
Lossy compression is particularly suitable for the transmission of ________.
A: Spreadsheets
B: Text files
C: Financial data
D: Audio, video, and images - Answer- D: Audio, video, and images
What is a codec?
A: A structure of data containment
B: A formatting system
C: A program that holds data
D: A device or processing system that encodes and decodes data - Answer- D: A device or
processing system that encodes and decodes data
, As noise is introduced along a(n) ________ signal path, processing circuitry can determine
whether the signal is intended to be high or low and then retransmit a solid signal without the
imposed noise.
A: Digital
B: Dirty
C: Analog
D: Clean - Answer- A: Digital
Noise overcomes the signal after many generations of re-amplification of a(n) _________ signal.
A: Digital
B: Analog
C: Low
D: High - Answer- B: Analog
How sound moves through the air is called ________.
A: Generation
B: Compression
C: Acoustical
D: Propagation - Answer- D: Propagation
Wavelength is the _________.
A: Number of times a wavelength cycle occurs per second
B: Intensity or loudness of a sound in a particular medium
C: Physical distance between two points of a waveform that are exactly one cycle apart
D: Cycle when molecules move from rest through compression to rest to rarefaction - Answer- C:
Physical distance between two points of a waveform that are exactly one cycle apart
Which of the following does 0dB SPL describe?
A: The threshold of human hearing
B: Ambient noise level
C: The threshold of pain
D: Normal listening level - Answer- A: The threshold of human hearing
A "just noticeable" change in sound pressure level, either louder or softer, requires a _________
change.
A: +/- 10dB
B: +/- 6dB
C: +/- 1dB
D: +/- 3dB - Answer- D: +/- 3dB
Acoustics covers how sound is ________, and its ________ and _______.
A: Received; effects; structure
B: Produced; propagation; control
In a digital signal, the on state is represented by _______, and the off state is represented by
_______.
A. Two; one
B: One; two
C: Zero; one
D: One, zero - Answer- D: One, zero
What is the unit of luminous flux - the quantity of photons emitted from a 1 candela light source
through an area of 1 square meter on a sphere 1 meter in radius surrounding that light source?
A: Foot-candle
B: Nit
C: Lux
D: Lumen - Answer- D: Lumen
A signal that has many varying states is called a(n) _______ signal.
A: Analog
B: Fluctuating
C: Dimmer
D: Digital - Answer- A: Analog
Bit depth is defined as the number of _______ you have in which to describe the value.
A: Signals
B: Speeds
C: States
D: Rates - Answer- C: States
Lossy compression is particularly suitable for the transmission of ________.
A: Spreadsheets
B: Text files
C: Financial data
D: Audio, video, and images - Answer- D: Audio, video, and images
What is a codec?
A: A structure of data containment
B: A formatting system
C: A program that holds data
D: A device or processing system that encodes and decodes data - Answer- D: A device or
processing system that encodes and decodes data
, As noise is introduced along a(n) ________ signal path, processing circuitry can determine
whether the signal is intended to be high or low and then retransmit a solid signal without the
imposed noise.
A: Digital
B: Dirty
C: Analog
D: Clean - Answer- A: Digital
Noise overcomes the signal after many generations of re-amplification of a(n) _________ signal.
A: Digital
B: Analog
C: Low
D: High - Answer- B: Analog
How sound moves through the air is called ________.
A: Generation
B: Compression
C: Acoustical
D: Propagation - Answer- D: Propagation
Wavelength is the _________.
A: Number of times a wavelength cycle occurs per second
B: Intensity or loudness of a sound in a particular medium
C: Physical distance between two points of a waveform that are exactly one cycle apart
D: Cycle when molecules move from rest through compression to rest to rarefaction - Answer- C:
Physical distance between two points of a waveform that are exactly one cycle apart
Which of the following does 0dB SPL describe?
A: The threshold of human hearing
B: Ambient noise level
C: The threshold of pain
D: Normal listening level - Answer- A: The threshold of human hearing
A "just noticeable" change in sound pressure level, either louder or softer, requires a _________
change.
A: +/- 10dB
B: +/- 6dB
C: +/- 1dB
D: +/- 3dB - Answer- D: +/- 3dB
Acoustics covers how sound is ________, and its ________ and _______.
A: Received; effects; structure
B: Produced; propagation; control
