The amplitude ratio for the sinusoidal response of __________ is < 1?

Related Mcqs:

1. 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

2. The amplitude ratio for the sinusoidal response of a _____________ is 1?

   A. First order system
   B. Second order system
   C. Transportation lag
   D. None of these

3. 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

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

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

5. 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°

6. “A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency.” This is _______________ criterion?

   A. Bode stability
   B. Nyquist
   C. Routh stability
   D. None of these

7. Phase lag of the sinusoidal response of a first order system is _________________?

   A. 120°
   B. 30°
   C. 180°
   D. 90°

8. Phase lag of the frequency response of a second order system to a sinusoidal forcing function______________?

   A. Is 30°
   B. Is 90° at the most
   C. Approaches 180° asymptotically
   D. Is 120°

9. Conversion formula for converting amplitude ratio (AR) into decibels is ________________?

   A. Decibel = 20 log10 (AR)
   B. Decibel = 20 loge (AR)
   C. Decibel = 20 log10 (AR)0.5
   D. Decibel = 20 loge (AR)0.5

10. An amplitude ratio of 0.1 corresponds to _____________ decibels?

    A. 20
    B. -20
    C. 10
    D. -10