AME 11 Q4

1 / 5

Define the term Proportional Action.

A) Proportional action adjusts the control output based on the magnitude of the error, where the output is directly proportional to the difference between the setpoint and the actual value.

D) Proportional action uses a fixed output level regardless of the error magnitude to maintain system stability.

B) Proportional action integrates the error over time to adjust the control output, aiming to eliminate steady-state error.

C) Proportional action predicts future errors by adjusting the control output based on the rate of change of the error.

2 / 5

Explain the purpose of Integral Action.

B) Integral action integrates the error over time to eliminate steady-state error, ensuring that the system eventually reaches the setpoint.

A) Integral action adjusts the control output based on the magnitude of the error, aiming to quickly correct deviations from the setpoint.

C) Integral action predicts future errors by adjusting the control output based on the rate of change of the error.

D) Integral action maintains a constant output level regardless of the error to keep the system stable.

3 / 5

Explain the purpose of Derivative Action.

B) Derivative Action helps to anticipate future errors by reacting to the rate of change of the error, thereby improving the system’s stability and response time.

D) Derivative Action compensates for errors in the system by applying a proportional correction based on the current error value alone.

A) Derivative Action aims to eliminate steady-state errors by continuously adjusting the control output based on the accumulated error over time.

C) Derivative Action adjusts the control output to maintain a constant error, ensuring that the system remains at a fixed setpoint without any fluctuations.

4 / 5

Describe the effect of excessive Derivative Action.

B) Excessive Derivative Action can cause the system to become overly sensitive to noise, leading to oscillations and instability.

D) Excessive Derivative Action can decrease the system’s overall response time and improve its accuracy in maintaining the setpoint.

A) Excessive Derivative Action can lead to a sluggish response time and an increase in steady-state errors.

C) Excessive Derivative Action can result in a system that quickly reaches the setpoint without overshooting or oscillating.

5 / 5

Describe a possible effect of excessive Integral Action.

B) Excessive Integral Action can cause the system to oscillate or exhibit sustained oscillations around the setpoint due to an overcompensation of errors.

A) Excessive Integral Action can lead to a quick and accurate response to setpoint changes, reducing the time required to reach the target value.

C) Excessive Integral Action can make the control system unresponsive to errors, resulting in a steady and stable system performance.

D) Excessive Integral Action can increase the system’s ability to predict future errors accurately, leading to improved overall system stability.

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