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

Related Mcqs:

1. 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°...

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

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

3. 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°...

4. The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is________________?

   A. 5π/12 B. π/6 C. π/12 D. π/3...

5. A sinusoidal variation in the input passing through a linear first order system _________________?

   A. Becomes more oscillatory (frequency increases) B. Becomes less oscillatory (frequency decreases) C. Gets amplified (magnitude increases) D. Gets attenuated (magnitude decreases)...

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

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

7. 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...

8. The frequency response of a dynamic element shows a constant magnitude ratio at all frequencies. The element exhibits a negative phase shift at all frequencies. The absolute value of the phase shift increases linearly with frequency. The element has the transfer function ?

   A. e-ηS B. (T1S + 1)/(T2S + 1) C. (T1S/(T2S + 1) D. (T1S + 1)/(T2S...

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. 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...