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Control Systems

Control Systems
In the cauer-2 form of LC network---------is series element and --------is shunt element respectively?

 L and C
 C and C
 L and L
 C and L

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

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

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Control Systems
For a unity feedback control system open loop transfer function then acceleration error constant is

 50.
 20.
 infinity.
 0.

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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
Sparking between the contacts can be reduced by inserting

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

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Control Systems
A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is

 -180°
 -90°
 180°
 90°

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