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Control Systems

Control Systems
Type and order of transfer function G (s) = K / {s(s + 2)}

 1, 1.
 1, 2.
 0, 2.
 2, 1.

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

 4
 2
 8
 6

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Control Systems
what is the Laplace transform of a function δ(t-2)?

 2
 0
 2s
 e-2s

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Control Systems
The following transfer function represents a phase-lead compensator?

 (s+4)/(s+6)
 (s+4)/(3s+6)
 (4s+2)/(6s+1)
 1/s

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Control Systems
A second order control system has F(jω) = 100/(100 - ω² + 10√2 jω). Find the resonant peak?

 1
 0.5
 1.5
 0.707

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Control Systems
Sparking between the contacts can be reduced by inserting

  a capacitor in parallel with the contacts.
 a reactor in the line.
 a resistor in the line.
 a capacitor in series with the contacts.

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