What are the requirements of a good control system?
[3 marks]The output of a linear system for a unit step input is given by t2e−t. Find the transfer function of the system.
[4 marks]Define transfer function. Explain relationship between impulse response and transfer function of any system. Discuss advantages and disadvantages also.
[7 marks]Explain open loop system with suitable examples.
[3 marks]Define : i) forward path and its gain ii) feedback loop and its gain iii) self loop iv) non-touching loops
[4 marks]What is force current analogous system? Which are the analogous quantities according to this method?
[7 marks]Obtain differential equations describing the mechanical system shown in the figure and draw the electric network using force-voltage analogy.
[7 marks]Explain how Mason’s gain formula can be applied to electrical network.
[3 marks]Define and explain : i) Poles ii) Zeros iii) characteristic equation iv) order
[4 marks]Find out the overall transfer function using block diagram reduction rule
[7 marks]What is the necessity of standard test signals?
[3 marks]Explain Nyquist stability criterion
[4 marks]Using mason’s gain formula find the transfer function of the following system.
[7 marks]State the properties of state transition method.
[3 marks]Explain unit step response of first order system.
[4 marks]Draw Nyquist plot for following transfer system :-1 GH(s) = s2(s+a)
[7 marks]Aseries RLC circuit has R= 1Ω, L = 1 Hand C = 1F. What is the damping ratio of the circuit?
[3 marks]Determine the stability of the system s3 + 6s2 + 12s+8 = 0.
[4 marks]Derive the expression of delay time and Rise time for under damped second order system.
[7 marks]State the advantages of frequency response methods?
[3 marks]Explain the usefulness of root locus diagram in the design of a feedback control system.
[4 marks]For the unity feedback control system 0 G(s) = . Sketch the Bode plot, determine gain and phase s(s+1)(s+5) margin. If the margin is increased to 150% what is the new gain margin & phase margin? What is the effect on stability?
[ marks]What should be values of G.Mand P.Mof a good system?
[3 marks]Compare Block diagram method and signal flow diagram method.
[4 marks]List all the rules to construct a root locus and explain.
[7 marks]