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Electrical Engineering Objective Questions { Control System }

99.  If the input to a system of transfer function 1/(cs + 1) is unit ramp, the steady state error is
A. t
B. zero
C. infinite
D. none of these
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100.  For a second order system with unit step excitation, the steady state outputC= Lulni C (1) is equal to
B. zero
C. infinity
D. 1/2
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101.  In a second order system, if the damping factor is less than unity, the system will be
A. under damped
B. over damped
C. critically damped
D. freely oscillating
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102.  Integral error compensation is equal to
A. proportional minus integral compensation
B. proportional plus integral compensation
C. proportional plus derivative compensation
D. proportional minus derivative compensation
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103.  If a system is critically damped and the gain is increased, the system
A. becomes overdamped
B. becomes underdamped
C. becomes oscillatory
D. remains critically damped
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104.  The number of integrations in the system transfer function G (s) indicates
A. absolute stability
B. degree of stability
C. steady state performance
D. transient performance
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105.  Which of the following system commonly operates under the type 0 system?
A. regulator
B. servomechanism
C. fire control servo and tracking radar
D. both B and C above
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