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Control Systems

Control Systems
Slope of asymptote in Bode plot of 2nd order system is _____________________ per octave.

 18 dB
 6 dB
 12 dB
 3 dB

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Control Systems
If two blocks having gains A and B respectively are in series connection, find the resultant gain using block diagram reduction technique?

 A/B
 A-B
 A+B
 A*B

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Control Systems
The magnitude of a transfer function G(jω)H(jω) at gain cross over frequency is

 1
 infinity
 any of the above
 0

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Control Systems
A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant?

 2 sec
 5 sec
 6 sec
 4 sec

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Control Systems
Electrical analogous quantity for spring element (K) in force-voltage analogy is

 C
 R
 1/C
 L

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

 none of them.
 isotropic.
 elastic.
 homogeneous.

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