Feedback Control Systems Quiz

What are the three standard feedback control modes?

• Proportional, Integral, Derivative

• Proportional, Proportional-Integral, Proportional-Derivative

• Proportional, Integral-Derivative, Derivative

• Proportional, Proportional-Integral, Proportional-Integral-Derivative

What does the level controller (LC) do?

• It measures the inlet flow

• It adjusts the pressure

• It monitors the level in the tank

• It controls the temperature

What is the main objective of a feedback control system?

• To increase the inlet flow

• To measure the outlet flow

• To maintain a constant temperature

• To reduce the error signal to zero

In proportional control, what does the controller output depend on?

• The integral of the error signal

• The derivative of the error signal

• The average of past error signals

• The error signal itself

What is the bias value in proportional control?

• The maximum output value

• The steady-state value of the controller output

• The minimum output value

• The average error value

What does the integral controller aim to eliminate?

• The offset

• The set-point

• The error signal

• The disturbance

What is the primary function of derivative control?

• To adjust the set-point

• To anticipate future behavior of the error signal

• To measure the output variable

• To maintain steady-state conditions

Which control mode is typically used to eliminate offset?

• Derivative control

• Feedback control

• Integral control

• Proportional control

What is the effect of increasing the controller gain (Kc) in proportional control?

• It reduces the offset

• It slows down the response

• It stabilizes the system

• It increases the offset

What happens when the integral time (tI) is small?

• The system becomes more stable

• The process response is sluggish

• The closed-loop response may be unstable

• The offset is eliminated