Bode diagram are generated from output response of the system subjected to which of the following input ?

Related Mcqs:

1. According to Bode stability criterion, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is_________________?

   A. 0°
   B. 45°
   C. 90°
   D. 180°

2. A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is______________?

   A. 45°
   B. -90°
   C. -180°
   D. -45°

3. Response of a system to a sinusoidal input is called _____________ response?

   A. Impulse
   B. Unit step
   C. Frequency
   D. None of these

4. Bode stability method uses ____________ loop transfer function?

   A. Open
   B. Closed
   C. Either A. or B.
   D. Neither A. nor B.

5. In Bode plot, A.R. vs. w is plotted on a/an _____________ graph paper?

   A. Log-lag
   B. Triangular
   C. Ordinary
   D. Semi-log

6. In Bode plot, φ vs. ω is plotted on a/an ______________ graph paper?

   A. log-log
   B. Ordinary
   C. Semi-log
   D. Triangular

7. A first order system with unity gain and time constant η is subjected to a sinusoidal input of frequency w = 1/η. The amplitude ratio for this system is______________?

   A. 1
   B. 0.5
   C. 1/√2
   D. 0.25

8. In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is_____________?

   A. G/(1 + H)
   B. H/(1 + G)
   C. G/H
   D. H/G

9. What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system ?

   A. 1
   B. > 1
   C. < 1
   D. None of these

10. Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference ?

    A. Peltier effect
    B. Thomson effect
    C. Seebeck effect
    D. None of these