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CTS Exam Questions & Accurate Answers. QUIZBANK.
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CTS Exam Questions & Accurate Answers. QUIZBANK. Current - -The rate of electrons through a circuit per second. Denoted as Intensity [I] or Amperes [A]. Intensity [I] or Amperes [A] - -Denotions used to represent Current in a circuit. Voltage - -The electrical potential to create current f...

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  • August 18, 2023
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  • 2023/2024
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CTS Exam Questions & Accurate Answers. QUIZBANK. Current - ✔✔-The rate of electrons through a circuit per second. Denoted as Intensity [I] or Amperes [A]. Intensity [I] or Amperes [A] - ✔✔-Denotions used to represent Current in a circuit. Voltage - ✔✔-The electrical potential to create current flow in a circuit. Measured in Volts, It is denoted as Volts [V] or Electromotive Force [E]. Volts [V] or Electromotive Force [E]. - ✔✔-Denotions used to represent Voltage in a circuit. Resistance - ✔✔-The property opposition of the flow of electrical current. Measured in Ohms, it is denoted by Resistance [R]. [R] or Ohms - ✔✔-Denotions used to represent Resistance in a circuit. When checking signal flow, the first thing you need to confirm is that the signal is _____. - ✔✔-being generated by the source co mponents 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 ou tputs 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 d oes 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 wi reless 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 condense r 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 le vel 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 cou pled 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 gi ven 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 As impedance increases and current remains constant, voltage _____. - ✔✔-increases If the measured voltage in a circuit is 40 V, and the resistance is 8 ohms, what is the current? - ✔✔-5A The relationship between current and ____ is inversely proportional. - ✔✔-resistance Resistance ____ the flow of current. - ✔✔-reduces If the measur ed current in a circuit is 5 A and the resistance is 8 ohms, what is the voltage? - ✔✔-40 If the measured current is 10 A and the voltage is 120 V, what is the resistance in the circuit? - ✔✔-12 Ohms The current in a circuit is 0.5 A, and the voltage is measured at 9 V. What is the power? - ✔✔-4.5 W The current in a circuit is measured at 1 A, and the resistance is 1 ohm. What is the voltage? - ✔✔-1 V There are eight loudspeakers wired in parallel and each loudspeaker's impedance is 16 ohms. The impedan ce of the circuit is _____ ohms. - ✔✔-2 ohms There are four loudspeakers wired in parallel. Two of the loudspeakers each have an impedance of 8 ohms. Two of the loudspeakers each have an impedance of 16 ohms. Calculate the impedance of this parallel circu it. - ✔✔-2.7 ohms Which of the following is a polar plot diagram? - ✔✔-Polar plot picture Determine the wattage in a circuit measuring 120 volts with 15 amperes of current flow. - ✔✔-1800 W The relationship among voltage, current, and resistance is defi ned by the formula_____. - ✔✔-I = V/R

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