1) Which a. Input signal


2) Which among the following is not an advantage of an open loop system? a. Simplicity in construction & design


3) Which notation represents the feedback path in closed loop system representation? a. b(t)


4) Which among the following represents an illustration of closed loop system? a. Automatic washing machine


5) How is an output represented in the control systems? a. r(t)


6) The output is said to be zero state response because ______conditions are made equal to zero. a. Initial


7) Basically, a. Zero


8) By equating the denominator of transfer function to zero, which among the following will be obtained? a. Poles


9) The output signal is fed back at the input side from the _________point a. Summing


10) In a a. Forward


11) While shifting a takeoff point after the summing point, which among the following should be added? a. Summing point in series with takeoff point


12) Consider the assertions related to block diagram. Which among them represents the precise condition? a. A is true, B is false


13) In a signal flow graph, nodes are represented by small _____ a. Circles


14) According to a. Branch


15) Which type of node comprises incoming as well as outgoing branches? a. Source node


16) Where are the dummy nodes added in the branch with unity gain? a. At input & output nodes


17) According to the property of impulse test signal, what is the value of an impulse at t = 0? a. Zero


18) What is the value of parabolic input in Laplace domain? a. 1


19) Which among the following is/are an/the illustration/s of a sinusoidal input? a. Setting the temperature of an air conditioner


20) If a system a. Position


21) On the basis of an output response, into how many parts can the splane be divided? a. 2


22) If the a. Exponential


23) Which among the following are solely responsible in determining the speed of response of control system? a. Poles


24) If a pole is located at s = 5 in lefthand plane (LHP), how will it be represented in Laplace domain? a. 1/ s + 5


25) In second order system, which among the following remains independent of gain (k)? a. Open loop poles


26) Root locus specifies the movement of closed loop poles especially when the gain of system ________ a. Remains constant


27) Which condition is used to verify the existence of a particular point on the root locus? a. Amplitude


28) While specifying the angle and magnitude conditions, angles are added whereas magnitudes get ________ a. Subtracted


29) The a. Step


30) If a linear system is subjected to an input r(t) = Asin(ωt), what output will be generated? a. c(t) = B sin (ωt + Φ)


31) Which unit is adopted for magnitude measurement in Bode plots? a. Degree


32) In an octave frequency band, the ratio of f2 / f1 is equivalent to ________ a. 2


33) In polar plots, what does each and every point represent w.r.t magnitude and angle? a. Scalar


34) In polar plots, if a pole is added at the origin, what would be the value of the magnitude at Ω = 0? a. Zero


35) Conventional control theory is applicable to ______ systems a. SISO


36) State space analysis is applicable even if the initial conditions are _____ a. Zero


37) If an error signal e(t) of an ONOFF controller is found to be greater than zero, what would be its output? a. 10%


38) Which time a. Rise time


39) Which a. PI


40) In PI controller, what does an integral of a function compute? a. Density of curve

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It is very nice question.