__________________can be extended to systems which are time-varying ?

Related Mcqs:

1. Due to which of the following reasons excessive bond width in control systems should be avoided ?

   A. It leads to slow speed of response
   B. It leads to low relative stability
   C. Noise is proportional to band width
   D. None of the above

2. An increase in gain, in most systems, leads to_____________?

   A. smaller damping ratio
   B. larger damping ratio
   C. constant damping ratio
   D. none of the above

3. Static error coefficients are used as a measure of the effectiveness of closed loop systems for specified ___________ input signal?

   A. acceleration
   B. velocity
   C. position
   D. all of the above

4. In pneumatic control systems the control valve used as final control element converts____________?

   A. pressure signal to electric signal
   B. pressure signal to position change
   C. electric signal to pressure signal
   D. position change to pressure signal
   F. none of the above

5. 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 action
   B. Presence of non-linearities causes malfunctioning
   C. Less expensive
   D. Generally free from problems of non-linearities

6. A closed loop system is distinguished from open loop system by which of the following ?

   A. Servomechanism
   B. Feedback
   C. Output pattern
   D. Input pattern

7. Which of the following statements is correct for any closed loop system ?

   A. All the co-efficients can have zero value
   B. All the co-efficients are always non-zero
   C. Only one of the static error co-efficients has a finite non-zero value
   D. None of the above

8. The transient response of a system is mainly due to________________?

   A. inertia forces
   B. internal forces
   C. stored energy
   D. friction

9. Which of the following is the definition of proportional band of a controller ?

   A. The range of air output as measured variable varies from maximum to minimum
   B. The range of measured variables from set value
   C. The range of measured variables through which the air output changes from maximum to minimum
   D. Any of the above
   F. None of the above

10. The type 0 system has ___________ at the origin?

    A. no pole
    B. net pole
    C. simple pole
    D. two poles
    F. none of the above