A. Becomes more oscillatory (frequency increases)
B. Becomes less oscillatory (frequency decreases)
C. Gets amplified (magnitude increases)
D. Gets attenuated (magnitude decreases)
Related Mcqs:
- 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 - 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 - Phase lag of the sinusoidal response of a first order system is _________________?
A. 120°
B. 30°
C. 180°
D. 90° - Response of a system to a sinusoidal input is called _____________ response?
A. Impulse
B. Unit step
C. Frequency
D. None of these - Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion ?
A. Nickel
B. Brass
C. Chromel
D. Invar - 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° - 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 - 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 - What is the dynamic error in a critically damped second order instrument for a ramp input (At) ?
A. 0.5 AT
B. 2 AT
C. √(AT)
D. 1.5 AT - 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°
