____________is a part of the human temperature control system? A. Digestive systemB. Perspiration system C. Ear D. Leg movement

Any externally introduced signal affecting the controlled output is called a______________? A. feedbackB. stimulus C. signal D. gain control

A control system working under unknown random actions is called______________? A. computer control system B. digital data systemC. stochastic control system D. adaptive control system

A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ? A. Clutch B. EyesC. Needle of the speedometer D. Steering wheel F. None of the above

In open loop system_____________? A. the control action depends on the size of the system B. the control action depends on system variables C. the control action depends on the input signalD. the control action is independent of the output

A control system in which the control action is somehow dependent on the output is known as____________? A. Closed loop system B. Semiclosed loop system C. Open system D. None of the above

Which of the following is an open loop control system ? A. Field controlled D.C. motor B. Ward leonard control C. Metadyne D. Stroboscope

In an open loop control system____________? A. Output is independent of control input B. Output is dependent on control input C. Only system parameters have effect on the control output D. None of the above

Which of the following statements is not necessarily correct for open control system ? A. Input command is the sole factor responsible for providing the control actionB. Presence of non-linearities causes malfunctioning C. Less expensive D. Generally free from problems…

has tendency to oscillate______________? A. Open loop systemB. Closed loop system C. Both A. and B. D. Neither A. nor B.