Control System | True-False Questions

Q. Routh-Hartwiz criterion suggests the way to improve the system stability.

Answer
False

Q. Nyquist criteria gives direct value of corner frequency.

Answer
False

Q. The root locus terminates at the poles of the characteristic equation.

Answer
False

Q. In an unstable system, it is possible to achieve initial equilibrium state.

Answer
False

Q. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.

Answer
True

Q. Phase lag network is employed for increasing system stability as well as bandwidth.

Answer
False

Q. Phase lag network is used to increase system stability and maintain velocity gain constant.

Answer
True

Q. The friction coefficient in a system is a kept low to increase velocity lag error.

Answer
False

Q. A servo with better frequency response need not be stable.

Answer
True

Q. Some servos do not need to be stable, since they are intended for use with steady signals.

Answer
False

Q. A tachogenerator is a speed sensor.

Answer
True

Q. Integral control action reduces steady state error.

Answer
True

Q. A phase lead controller affects the steady-state error.

Answer
False

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