Control Systems
The transfer functions of two compensators are given below. Which one is correct? which one is correct?

  Both C1 and C2 are lag compensator.
  Both C1 and C2 are lead compensator.
  C1 is a lead compensator and C2 i
  C1 is a lag compensator and C2 i

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Control Systems
For a transfer function H (s) = P(s) / Q(s), where P (s) and Q (s) are polynomials in s. Then

 the degree of P (s) and Q (s) are same.
 maximum degree of P (s) and Q (s) differ at most by one.
  degree of P (s) is independent of degree of Q (s).
 the degree of P (s) is always greater than the degree of Q (s).

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Control Systems
An open loop control system, represented by the transfer function G ( s ) = ( s - 1 ) / ( s + 2 )( s + 3 ), is

  unstable and of the non minimum phase type .
  stable and of the minimum phase type.
  unstable and of the minimum phase type.
  stable and of the non-minimum phase type.

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