Realtime Control Systems Multiple choice Questions and Answers pdf

21    increases the steady state accuracy.
(a)      Integrator
(b)      Differentiator
(c)      Phase lead compensator
(d)      Phase lag compensator
Ans: a

22.   A.C. servomotor resembles 
(a)    two phase induction motor
(b)    Three phase induction motor
(c)    direct current series motor
(d)    universal motor
Ans: a

23.    As a result of introduction of negative feedback which of the following will not decrease ?
(a)     Band width   
(b)     Overall gain
(c)     Distortion
(d)     Instability
Ans: a

24.    Regenerative feedback implies feedback with
(a)     oscillations    
(b)     step input
(c)    negative sign 
(d)     positive sign
Ans: d

25.    The output of a feedback control system must be a function of
(a)    reference and output
(b)    reference and input
(e)    input and feedback signal
(d)    output and feedback signal
Ans: a

26    is an open loop control system.
(a)    Ward Leonard control
(b)    Field controlled D.C. motor
(c)    Stroboscope
(d)    Metadyne
Ans: b

27.    A control system with excessive noise, is likely to suffer from
(a)    saturation in amplifying stages
(b)    loss of gain
(c)    vibrations
(d)     oscillations
Ans: a

28.    Zero initial condition for a system means
(a)    input reference signal is zero
(b)    zero stored energy
(c)    ne initial movement of moving parts
(d)    system is at rest and no energy is stored in any of its components
Ans: d

29.    Transfer function of a system is used to calculate which of the following ?
(a)    The order of the system
(b)    The time constant
(c)    The output for any given input
(d)    The steady state gain
Ans: c

30.    The band width, in a feedback amplifier.
(a)    remains unaffected
(b)    decreases by the same amount as the gain increase
(c)     increases by the sane saaaajajt as the gain decrease
(d)     decreases by the same amount as the gain decrease
Ans: c

Read More Questions:
Control Systems MCQs Part1
Control Systems MCQs Part2

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