Amplifier Questions: Trivia Quiz!

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| By Jay Amalato
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Jay Amalato
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Quizzes Created: 1 | Total Attempts: 171
| Attempts: 174
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  • 1/16 Questions

    Amplifiers are used to increase the strength of signal levels after they have been attenuated by the coaxial cable and passives.

    • True
    • False
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About This Quiz

Explore the fundamentals of amplifiers in the 'Amplifier Questions: Trivia Quiz!' This quiz assesses knowledge on signal strength enhancement, noise impact, and specific amplifier types, crucial for learners in electronics and electrical engineering.

Amplifier Questions: Trivia Quiz! - Quiz

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  • 2. 

    Which of the following are true:

    • The purpose of gain is to compensate for the signal loss of cable and passive devices preceding the amplifier.

    • B) Gain is accomplished by amplifying or increasing the strength of the RF signal

    • C) A basic characteristic of all amplifiers is to provide gain.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    All of the given statements are true. The purpose of gain in an amplifier is indeed to compensate for the signal loss that occurs in the cable and passive devices before the signal reaches the amplifier. Gain is achieved by amplifying or increasing the strength of the RF signal. Additionally, providing gain is a fundamental characteristic of all amplifiers. Therefore, the correct answer is "All of the above."

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  • 3. 

    Which is output related?

    • CNR

    • Distortion

    Correct Answer
    A. Distortion
    Explanation
    Distortion is the correct answer because it refers to a type of output related to audio or visual signals. Distortion occurs when there is a modification or alteration of the original signal, resulting in a change in quality or accuracy. In audio, distortion can be heard as unwanted noise or a change in the tone of the sound. In visual signals, distortion can manifest as pixelation or blurriness. Therefore, distortion is directly related to the output quality of audio or visual signals.

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  • 4. 

    A reverse amplifier is a module which supplies gain for signals traveling opposite to the forward signal flow, from the customer to the node.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A reverse amplifier is a module that provides amplification for signals that are traveling in the opposite direction of the forward signal flow. In other words, it boosts the strength of signals that are going from the customer to the node. This statement is true because a reverse amplifier is specifically designed to amplify reverse signals, allowing them to reach the node with sufficient strength.

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  • 5. 

    Amplifiers generate noise and distort the signals they amplify.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Amplifiers generate noise and distort the signals they amplify. This is because amplifiers introduce unwanted electrical signals, known as noise, into the amplified signal. Additionally, amplifiers can also cause distortion by altering the shape or quality of the original signal due to various factors such as non-linearities in the amplifier's circuitry. Therefore, it is true that amplifiers generate noise and distort the signals they amplify.

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  • 6. 

    Which path is padded after amplification?

    • Forward

    • Return

    Correct Answer
    A. Return
    Explanation
    After amplification, the return path is padded.

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  • 7. 

    To do a 6 and 40 alignment between 2 amplifiers you need to insert the signal at the ___________ test point and read the level at the _________ test point of the upstream amplifier.

    • Forward output, return input

    • Return output, return input

    • Return output, forward output

    • Return input, return output

    Correct Answer
    A. Forward output, return input
    Explanation
    To do a 6 and 40 alignment between 2 amplifiers, you need to insert the signal at the forward output test point of the upstream amplifier and read the level at the return input test point of the upstream amplifier.

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  • 8. 

    The input to a 1 output LE on channel 2 = 18 dBmV. What should the return pad be if the previous LE is aligned properly? (Return gain = 24)

    • 10

    • 12

    • 14

    • 16

    Correct Answer
    A. 12
    Explanation
    The input to a 1 output LE on channel 2 is 18 dBmV. The return pad should be 12 if the previous LE is aligned properly. This suggests that the return gain of 24 is being balanced by a return pad of 12 to achieve the desired alignment.

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  • 9. 

    Distortion is unwanted RF electrical energy interfering with desired signals.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Distortion refers to the unwanted RF electrical energy that disrupts or interferes with the desired signals. This interference can result in a degradation of the quality or clarity of the desired signals. Therefore, the given statement is true as it correctly defines distortion as unwanted RF electrical energy interfering with desired signals.

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  • 10. 

    Signal losses will be significantly more for the reverse signal transmissions.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Signal losses will not be significantly more for reverse signal transmissions. The statement implies that the loss of signal strength is greater when signals are transmitted in the reverse direction, which is not true. Signal losses depend on various factors such as distance, obstacles, and interference, regardless of the direction of transmission. Therefore, the given statement is false.

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  • 11. 

    Signal distortion is a result of?

    • Low input levels.

    • High output levels.

    • High input levels

    • Low output levels

    Correct Answer
    A. High output levels.
    Explanation
    Signal distortion is a result of high output levels. When the output levels are too high, the signal can become distorted and lose its original quality. This distortion occurs because the amplifier or device handling the signal is unable to accurately reproduce the waveform at such high levels. As a result, the signal may become clipped, distorted, or saturated, leading to a loss of fidelity and potentially causing unwanted noise or artifacts in the audio or video signal.

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  • 12. 

    Which of the following are used for the excess gain of the amplifier? 

    • Pads

    • Equalizers

    • Diplex Filters

    Correct Answer(s)
    A. Pads
    A. Equalizers
    Explanation
    Pads and equalizers are used for the excess gain of the amplifier. Pads are used to attenuate the signal and reduce its strength, while equalizers are used to adjust the frequency response of the amplifier and compensate for any imbalances or distortions. Both pads and equalizers are important tools in amplifier design to ensure optimal performance and prevent any excess gain that could lead to distortion or other issues. Diplex filters, on the other hand, are used for frequency separation and combining signals in communication systems and are not directly related to excess gain in amplifiers.

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  • 13. 

    The input on 117 is 10 dBm, the pad is 11 dB, and the gain is 32 dB. What is the output on 117?

    • 31

    • 36

    • 41

    • 44

    Correct Answer
    A. 31
    Explanation
    The input signal has a power level of 10 dBm. The pad attenuates the signal by 11 dB, reducing the power level. The gain of the system amplifies the signal by 32 dB, increasing the power level. Therefore, the output power level can be calculated by subtracting the pad attenuation and adding the gain to the input power level: 10 dBm - 11 dB + 32 dB = 31 dBm.

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  • 14. 

    Select the amplifiers that have trunk output levels.

    • Type 1

    • Type 2

    • Type 3

    • Type 4

    Correct Answer(s)
    A. Type 1
    A. Type 4
    Explanation
    The amplifiers with trunk output levels are Type 1 and Type 4.

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  • 15. 

    Noise degrades a signal due to:

    • Low input levels

    • High input levels

    • Low output levls

    • High output levels

    Correct Answer
    A. Low input levels
    Explanation
    Low input levels can degrade a signal because when the input levels are low, the signal-to-noise ratio decreases. This means that the signal becomes weaker in comparison to the background noise, making it harder to distinguish the desired signal from the unwanted noise. As a result, the quality and clarity of the signal are compromised, leading to degradation.

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  • Current Version
  • May 05, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 19, 2018
    Quiz Created by
    Jay Amalato
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