Control Systems
Time response for a second order system depends on the value of τ. If τ= 0 then the system is called as

  under damped system.
  undamped system.
  critically damped system.
  over damped system.

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

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