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Auto 1 Topic 6-8 Quiz

Authored by Ralph Cerino

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Auto 1 Topic 6-8 Quiz
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an automated system, a Proportional-Integral-Derivative (PID) controller is a fundamental feedback control mechanism. What is its primary function?

To act as the sensor that measures the current state of the process variable for display purposes.

To calculate an output signal based on the error to maintain the process variable at the desired setpoint.

To function as the final element that physically manipulates the process, like a valve or a motor.

To provide the initial desired value or target for the system to achieve and maintain over time.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The PID control mode derives its name from the three distinct components it combines. Which of the following lists only the correct three components of a PID controller?

Proportional, Integral, Differential

Predictive, Integral, Derivative

Proportional, Interactive, Derivative

Proportional, Integral, Derivative

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Final control elements are essential components in any automation system. What is the fundamental role of a final control element within a control loop?

To measure the process variable and send a representative signal back to the controller for comparison.

To convert the output signal from the controller into a physical action that directly influences the process.

To calculate the error by comparing the setpoint to the process variable and determine the necessary response.

To provide a stable and accurate setpoint value that remains constant regardless of external disturbances.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The presentation lists several devices that are commonly implemented as final control elements. Which of the following devices is explicitly mentioned as a type of final control element?

A pressure transmitter that sends a 4-20 mA signal to the control room.

A thermocouple that measures the temperature in a ship's engine exhaust.

A control valve that adjusts the flow rate of fuel oil to a boiler.

A programmable logic controller (PLC) that executes the control logic.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Consider a marine application, such as controlling the temperature in a heavy fuel oil heater. Which final control element would most directly and commonly be responsible for regulating the steam flow to the heater?

A pressure sensor monitoring the steam line.

A PID controller calculating the required steam valve position.

A control valve that modulates open or closed based on a signal.

A temperature display on the engineering console.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Control loop signal processing encompasses various techniques applied to signals within the loop. What is the overarching purpose of implementing these signal processing techniques?

To increase the overall cost and complexity of the automation system for improved redundancy.

To achieve a more accurate and stable control of the process variable by refining the signals.

To eliminate the need for a human operator to monitor the system under any circumstances.

To ensure that all signals are converted to pneumatic pressure regardless of their original form.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A common challenge in control systems is dealing with high-frequency noise on a signal from a sensor. Which specific signal processing technique is primarily used to remove this unwanted noise from a measurement signal?

Signal Linearization, which corrects for non-linear sensor characteristics.

Signal Filtering, which blocks or attenuates specific unwanted frequency components.

Dead Time Compensation, which accounts for delays between an action and its measured effect.

Signal Averaging, which combines multiple samples to find a mean value.

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