benefits of feedback in control system mcq
10. 0000005265 00000 n 0000008918 00000 n c. Checking the quality of speakers of music system b) Negative (a) The gain of the system should be decreased, (b) The gain of the system should be increased, (c) The number of poles to the loop transfer function should be increased, (d) The number of zeros to the loop transfer function should be increased. Force d. All of the above. a. b. a. Amplitude A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ? a. a. 18. Branch 0000007050 00000 n b. d. State scalar. Insertion of negative feedback in control system affects: c) It leads to slower time response (function() {var script=document.createElement("script");script.type="text/javascript";script.async =true;script.src="//";document.getElementsByTagName("head")[0].appendChild(script);})(); a) It does not compensate for disturbance 0 < ξ < 0.707 0000003428 00000 n 113)   Which among the following constitute the state model of a system in addition to state equations? Block diagram is used for analysis & design of control system. For ramp inputs Fig. c. Block of reciprocal transfer function Join The Discussion . c. Medium Poles a) Forces b) Friction c) Stored energy d) Coupling Ans: (c) 2. b) The transient response in closed loop system decays more quickly than in open loop system. d. Decay time. In a control system, the controller output is given to: 7. b. Break away point It remains constant 71)   According to the principle of log-scales, if the ratio between two points is same, then the two points get ________equally. View Answer, 4. c. Sinusoidal 0000004062 00000 n d) None of these d) The system with larger bandwidth provides slower step response and lower fidelity ramp response 74)   Consider the system represented by the equation given below. The transient response of a system is mainly due to: b) Is sometimes used to increase the loop gain of the feedback system, c) Has the transfer function with a negative sign in the denominator. b. c. Gives zero feedback 95)   If ‘ξ’ approaches to zero, the peak resonance would ________, a. a. Scalar c) No change in transient response It increases continuously b. b. Self-loop Large b) The saturation voltage VCE for germanium transistor is more than silicon transistor. 4)   Which among the following represents an illustration of closed loop system? 37)   If an error signal e(t) of an ON-OFF controller is found to be greater than zero, what would be its output? I am Sasmita . B. H(s) ———- 2) Laplace of output signal Which of the following should be done to make an unstable system stable ? 2-1-4-3 d. Non-linear, 36)   State space analysis is applicable even if the initial conditions are _____, a. 0000005170 00000 n d. Average value. a) Control system transient response b) Reduce the sensitivity to plant parameter variations c) Both (a) and (b) d) None of these Ans: (c) 3. Start switch, a. Schematic diagram of the positive feedback system that is activated by hemorrhage. b) Frequency domain 72)   If a pole is located at origin, how does it get represented on the magnitude plot? b. Vector Control Systems objective questions (MCQs) and answers for competitive & university exams. #mcq on Control System for Electrical Engineering, #control system questions and answers for gate. 0000009925 00000 n 73)   Due to an addition of pole at origin, the polar plot gets shifted by ___ at ω = 0? d. Unpredictable, 35)   Conventional control theory is applicable to ______ systems, a. SISO 0000005828 00000 n 0000008088 00000 n Zero a. d. 3-1-2-4. b) Increased in bandwidth d. Electric hand drier. Block diagram also provides the information regarding the physical construction of the system. Phase variables 0000009024 00000 n b. c. Both a and b c. Divided Speed a. b) The bandwidth is the measurement of the accuracy of the closed loop system d) None of these d. All of the above. H�TT�n�0��+�HCR�1q�"]b QE�-36Q�2,�I��3�d$r��f�o��՝�ˢU��EZ( eV-e�aq�rh��#ahW_�솅R���n2��y]�f/��B����c�1�n����T�����x��y"E�:H�W��fQ���. 0000006486 00000 n Participate in the Sanfoundry Certification contest to get free Certificate of Merit. d. Diagonal. a. c. A- 2, B- 3, C- 4, D- 1 b. 0000002270 00000 n However, a feedback control system is generally considered superior to an open-loop system. a. c. Equal b. Ramp c. Imaginary positive © 2011-2020 Sanfoundry. 2) What should be the nature of bandwidth for a good control system? a) Noise is proportional to bandwidth d. -60 log (ω) dB. b. 2.0201 dB d. Parabolic. a. ωr = ωd b. b. 87)   The value of variables at each node is _________the algebraic sum of all signals arriving at that node. c. ωr < ωn


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