a) 1 db below its zero frequency b) 2 db below its zero frequency c) 3 db below its zero frequency d) 4 db below its zero frequency Ans: (c)
a) Zeros of open loop transfer function b) Zeros of closed loop transfer function c) Poles of closed loop transfer function d) Poles of open loop transfer function Ans: (c)
a) Db line of amplitude plot in Bode diagram b) 1 db line of amplitude plot in Bode diagram c) Either (a) and (b) d) None of these Ans: (c)
a) (1+T) b) (1+S) c) (Ts) d) (1+Ts) Ans: (d)
a) Gain margin b) Phase margin c) Both (a) and (b) d) None of these Ans: (c)
a) – 6 db/decade b) – 6 db/octave c) – 7 db/octave d) – 8 db/octave Ans: (b)
a) Are always symmetrical b) Can never be symmetrical c) May be symmetrical d) None of these Ans: (a)
a) Zero b) 100 c) 1 d) Infinity Ans: (d)
a) Modulation frequency b) Demodulation frequency c) Carrier frequency d) Band width Ans: (d)
a) Shift 90° clockwise b) Shift 90° anticlockwise c) Shift 180° d) Not change at all Ans: (a)
a) High oscillatory mode of transient response b) Steady state mode of response c) Sinusoidal mode of response d) None of these Ans: (a)
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