WorksheetsControl Ssyetms
Total questions: 10
Worksheet time: 5mins
In open loop system
the control action is independent of the output
the control action depends on the size of the system
the control action depends on system variables
the control action depends on the input signal
The capacitance, in force-current analogy, is analogous to
mass
momentum
velocity
displacement
In force-voltage analogy, velocity is analogous to
current
charge
inductance
capacitance
The transfer function is applicable to which of the following?
Linear and time-in variant systems
Linear and time-variant systems
Linear systems
Non-linear systems
Velocity error constant of a system is measured when the input to the system is unit _______ function.
ramp
parabolic
impulse
step
If the system is represented by characteristic equation s6 + s4 + s3 + s2 + s + 3 = 0, then the system is_________
Unstable
Stable
Marginally stable
Unpredictable
Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?
The system is highly oscillatory
The system is relatively stable
The system is highly stable
Unpredictable
In a control system integral error compensation _______ steady state error
minimizes
increases
does not have any effect on
some times increases and some times decreases
If the phase angle at gain crossover frequency is estimated to be -105°, what will be the value of phase margin of the system?
75°
23°
45°
60°
At which frequency does the magnitude of the system becomes zero dB?
Gain crossover frequency
Resonant frequency
Cut-off frequency
Phase crossover frequency
