1. The frequency and time domain are related through:
a) Laplace transformb) Fourier transform
c) Laplace transform and fourier integral
d) None of the above
2. A control system with excessive noise is likely to suffer from:
a) Vibrationsb) Oscillations
c) Saturation in amplifying stages
d) Loss of gain
3. The steady state error of a control system can be reduced by increasing:
a) Gain constant of the systemb) Time constant of the system
c) Both the gain constant and time constant of the system
d) None of the above
4. Velocity error constant of the system is a measured when the input of the system is unit ___ function
a) Rampb) Impulse
c) Step
d) Parabolic
5. Transfer function can be obtained from:
a) Output-input ratiob) Analogous table
c) Signal flow graph
d) Standard block diagram
6. The second derivative input signal:
a) Controls the time constant of the circuitb) Suppresses Oscillations
c) Modifies the damping and gain of the system
d) Both (a) and (b)
7. Differentiators are avoided in the system design as they:
a) Are costlierb) Reduces the response of the system
c) Develop noise and saturate the amplifier
d) Cannot be formed with capacitors and inductors
8. Transient function of the system and the response in terms of Laplace transform are the same for __ function
a) Unit impulseb) Ramp
c) Unit step
d) Parabolic
9. In a control system noise can be avoided by:
a) Reducing the bandwidthb) Attenuating those frequencies at which external signal gets coupled into the system
c) Increasing the bandwidth
d) Both (a) and (b)
10. A unit step function on integration results in a:
a) Unit doubletb) Unit ramp function
c) Unit parabolic function
d) None of the above
