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Control Systems

Control Systems
The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is

 2
 6
 4
 8

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Control Systems
Electrical analogous element for damper element (force-voltage analogy) in mechanical translation system is

 any of the above
 inductor
 resistor
 capacitor

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Control Systems
A second order control system is defined by the following equation: 4 d²c(t)/dt² + 8 dc(t)/dt + 16 c(t) = 16 u(t) The damping ratio and natural frequency for this system are respectively

 0.50 and 2 rad/s
 0.25 and 4 rad/s
 0.50 and 4 rad/s
 0.25 and 2 rad/s

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Control Systems
A controller transfer function is given by . What is its nature and parameter?

 lead compensator, α = 0.2
 lead compensator, α = 0.1
 lag compensator, β = 10
 lag compensator, β = 2

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Control Systems
For a lead compensator, the poles lie:

  on RHS.
  on LHS.
  on origin.
  on LHS before zero.

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Control Systems
The low frequency and high frequency asymptotes of Bode magnitude plot are respectively -60dB/decade and -40dB/decade. What is the type of the system?

 TYPE I
 TYPE 0
 TYPE III
 TYPE II

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