Operational Amplifiers in Electronic Circuits Quiz
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Operational Amplifiers in Electronic Circuits Quiz

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@PleasingGladiolus

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Questions and Answers

What is the main difference between open and closed control loops?

  • Open control loops are automatic, closed control loops are manual.
  • Open control loops use a regulating unit, closed control loops do not.
  • Open control loops are independent, closed control loops are automatic.
  • Open control loops are dependent on their output variable, closed control loops are independent. (correct)

    • What is the purpose of a controller in a process control system?

  • To regulate the control of the process (correct)
  • To respond directly to the variable
  • To measure the variable
  • To convert the value to a command signal

    • Which component of a process control loop is responsible for responding directly to the value of the variable?

  • Regulating Unit
  • Detector (correct)
  • Transmitter
  • Comparator

    • Which type of control loop is manual and independent of its output variable?

    <p>Open Control Loops</p> Signup and view all the answers

    What does the regulating unit represent in a process control system?

    <p>The final controlling element in the system</p> Signup and view all the answers

    Which component in a process control loop accepts the command signal and determines the deviation?

    <p>Comparator</p> Signup and view all the answers

    What is the primary purpose of an amplifier circuit on a ship?

    <p>Amplify audio signals</p> Signup and view all the answers

    Which of the following is NOT a function of an amplifier circuit on a ship based on the text?

    <p>Analog to digital conversion</p> Signup and view all the answers

    In what ship components or systems can amplifier circuits typically be found?

    <p>VHF and PA systems</p> Signup and view all the answers

    What type of control theory is discussed at the end of Topic 1 in the provided text?

    <p>Integral control theory</p> Signup and view all the answers

    What are disturbances in control theory according to the text?

    <p>Variables that deviate controlled variables from set point</p> Signup and view all the answers

    Which of the following is an example of a disturbance in a manufacturing process?

    <p>Sudden change in water temperature</p> Signup and view all the answers

    What is the advantage of having a standard range for equipment in terms of control air supply?

    <p>All equipment is sold ready calibrated</p> Signup and view all the answers

    Which type of signal is used to represent the minimum and maximum signals in control air supply?

    <p>4 to 20 mA</p> Signup and view all the answers

    In shipboard systems, what is the purpose of converting the output into the standard range for control air supply?

    <p>To make the output consistent with other equipment</p> Signup and view all the answers

    What type of electrical signal was used by older electrical equipment before the standard 4 to 20 mA range?

    <p>0 to 10 V</p> Signup and view all the answers

    Which device in shipboard systems is responsible for ensuring that the output is within the standard control air supply range?

    <p>Processing and conditioning unit</p> Signup and view all the answers

    What is the main purpose of an amplifier in an electronic circuit?

    <p>To produce an output signal larger than the input signal</p> Signup and view all the answers

    How are operational amplifiers commonly used in electronic circuits for marine applications?

    <p>To control and amplify voltage or current signals</p> Signup and view all the answers

    Why do compact, small signal amplifiers find common usage in electronic components?

    <p>Because they are capable of raising small input signals to a larger magnitude</p> Signup and view all the answers

    How is the output signal of an operational amplifier controlled?

    <p>By the input signal that drives the amplifier</p> Signup and view all the answers

    Where does the additional power to increase the output signal come from in an amplifier circuit?

    <p>Externally provided D.C voltage</p> Signup and view all the answers

    What is the purpose of applying derivative control in a system with long time delays between changes in the measured value and their correction?

    <p>To compensate for the time delays in the system</p> Signup and view all the answers

    Which element acts directly on the controlled body, process, or machine in a servo-mechanism?

    <p>Servo-motor</p> Signup and view all the answers

    What best describes the actuator in a control valve system?

    <p>A motor responsible for moving or turning the valve</p> Signup and view all the answers

    In a pneumatic-operated control valve, what are the three parts that can be described?

    <p>Motor, valve, positioner</p> Signup and view all the answers

    What is the main function of a fail-safe strategy in automatic control systems?

    <p>To revert the system to a safe state in case of failure</p> Signup and view all the answers

    What element in an automatic control system receives amplifier output and drives the load directly?

    <p>Actuator</p> Signup and view all the answers

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