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Control Systems

Control Systems
If a body has identical properties all over, it is known as

 none of them.
 elastic.
 homogeneous.
 isotropic.

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Control Systems
Find the Laplace transform for sinωt?

 1/s
 1/s²
 ω/(s²+ω²)
 s/(s²+ω²)

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Control Systems
The second order system defined by 25/(s2 + 5s + 25) is given a step input. The time taken for the output to settle with in 2 % of input is

 1.6 sec.
 0.4 sec.
 1.2 sec.
 2 sec.

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Control Systems
The impulse response of the system described by the differential equation will be

 (1/3) × (1-e-3t).
 e-3t u(t).
 1/3.
 e6t.

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

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

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Control Systems
The characteristic equation of a feedback control system is given by s³ + 5s² + (k + 6)s + k = 0. In the root loci diagram, the asymptotes of the root loci for large 'k' meet at a point in the s-plane whose coordinates are

 (-2,0)
 (1,0)
 (2,0)
 (-1,0)

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