CTS Exam Questions and Answers
Rated A
When checking signal flow, the first thing you need to confirm is that the signal is _____.
✔✔being generated by the source components
What type of connection is pictured below? (wire under screw) ✔✔direct connection
What type of chart is displayed below? (activity/year/budget/actual) ✔✔gantt chart
This type of audio system reinforces or amplifies a presenter's voice so that they'll be heard over
a larger audience. ✔✔Speech Reinforcement System
0 dB SPL describes: ✔✔the threshold of human hearing
What is a decibel? ✔✔a logarithmic scale used to describe ratios with a large range of values
An audio amplifier outputs 75 watts and then it is decreased to 50 watts. What is the change in
decibels? ✔✔Negative -1.8 dB
,How loud (in decibels) does a 60 Hz sound have to be for it to be audible? ✔✔40 dB
According to the equal loudness curve chart below, how loud does a 20 Hz sound have to be
before it is audible? ✔✔70 dB
"Weighting" a sound pressure level measurement accounts for differences in the way _____.
✔✔humans perceive different frequencies at a given listening level
You measure the background noise level in a conference room at 40 dB SPL A-wtd. What is the
target sound pressure level of the audio system? ✔✔65
A sound wave must be transduced into _____ before it can be transmitted through the audio
signal path ✔✔electrical energy
Modern RF wireless microphones allow the user to _____ frequencies to avoid interference.
✔✔change
,The simultaneous use of multiple wireless microphone systems requires ____. ✔✔using lavalier
microphones
In a dynamic microphone, there is a(n) _____ attached to a diaphragm and placed in a permanent
magnetic field. ✔✔coil of wire
Operation of a condenser microphone requires ____ power. ✔✔phantom
Phantom power is the _____ required to power a condenser microphone. ✔✔remote power
Which of the following best describes an electret, when used in a microphone? ✔✔Prepolarized
material
_____ is not a necessary specification for a microphone. ✔✔Input impedance
A -58 dBu would be a typical signal level for a(n) _____. ✔✔microphone
, Select all of the true statements about this image: (2kHz cardiod polar plot) ✔✔The above shows
a polar plot of a cardioid microphone; The response of this microphone at 2kHz is best on axis at
0 degrees.
Direct coupled sound systems are best for program audio because of their _________.
✔✔Higher fidelity
A polar plot shows a loudspeaker's ____. ✔✔coverage angle
Polar plot diagrams are used for which purpose? ✔✔Identifying a device's directionality at a
given frequency
The polar plot below shows a loudspeaker's coverage pattern at 4 kHz. What is this
loudpspeaker's coverage angle? ✔✔60 degrees
An increase in voltage means an increase in _____. ✔✔resistance, if the current remains the
same
The ____ in an electrical circuit is proportional to the applied ____. ✔✔current; voltage
Rated A
When checking signal flow, the first thing you need to confirm is that the signal is _____.
✔✔being generated by the source components
What type of connection is pictured below? (wire under screw) ✔✔direct connection
What type of chart is displayed below? (activity/year/budget/actual) ✔✔gantt chart
This type of audio system reinforces or amplifies a presenter's voice so that they'll be heard over
a larger audience. ✔✔Speech Reinforcement System
0 dB SPL describes: ✔✔the threshold of human hearing
What is a decibel? ✔✔a logarithmic scale used to describe ratios with a large range of values
An audio amplifier outputs 75 watts and then it is decreased to 50 watts. What is the change in
decibels? ✔✔Negative -1.8 dB
,How loud (in decibels) does a 60 Hz sound have to be for it to be audible? ✔✔40 dB
According to the equal loudness curve chart below, how loud does a 20 Hz sound have to be
before it is audible? ✔✔70 dB
"Weighting" a sound pressure level measurement accounts for differences in the way _____.
✔✔humans perceive different frequencies at a given listening level
You measure the background noise level in a conference room at 40 dB SPL A-wtd. What is the
target sound pressure level of the audio system? ✔✔65
A sound wave must be transduced into _____ before it can be transmitted through the audio
signal path ✔✔electrical energy
Modern RF wireless microphones allow the user to _____ frequencies to avoid interference.
✔✔change
,The simultaneous use of multiple wireless microphone systems requires ____. ✔✔using lavalier
microphones
In a dynamic microphone, there is a(n) _____ attached to a diaphragm and placed in a permanent
magnetic field. ✔✔coil of wire
Operation of a condenser microphone requires ____ power. ✔✔phantom
Phantom power is the _____ required to power a condenser microphone. ✔✔remote power
Which of the following best describes an electret, when used in a microphone? ✔✔Prepolarized
material
_____ is not a necessary specification for a microphone. ✔✔Input impedance
A -58 dBu would be a typical signal level for a(n) _____. ✔✔microphone
, Select all of the true statements about this image: (2kHz cardiod polar plot) ✔✔The above shows
a polar plot of a cardioid microphone; The response of this microphone at 2kHz is best on axis at
0 degrees.
Direct coupled sound systems are best for program audio because of their _________.
✔✔Higher fidelity
A polar plot shows a loudspeaker's ____. ✔✔coverage angle
Polar plot diagrams are used for which purpose? ✔✔Identifying a device's directionality at a
given frequency
The polar plot below shows a loudspeaker's coverage pattern at 4 kHz. What is this
loudpspeaker's coverage angle? ✔✔60 degrees
An increase in voltage means an increase in _____. ✔✔resistance, if the current remains the
same
The ____ in an electrical circuit is proportional to the applied ____. ✔✔current; voltage
