Control System Theory Quiz

The actual response of a stable system follows the desired response

• True

• False

The input signal of a control system is considered as its desired response

• True

• False

The natural frequency of a system is the frequency at which the system response present sustained oscillation

• True

• False

The settling time of system is the time required for its response curve to reach and stay within a certain percentage of its final value (usually 2% or 5%).

• True

• False

An air conditioner which functions depending on the temperature of the room is considered as an open loop control system

• True

• False

The transfer function is used to define for both linear time-invariant and nonlinear system

• True

• False

The natural response of a control system is the response of a system to zero input and nonzero initial conditions

• True

• False

An automatic controller compares the actual value of the plant output with the reference input, determines the deviation, and produces a control signal that will reduce the deviation to zero or to a small value

• True

• False

The phase crossover frequency is the frequency at which the gain (in dB) plot crosses -180 degrees

• True

• False

The gain margin is the increase in open loop gain required to drive the closed loop system to the verge of its stability

• True

• False