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Control Systems

Control Systems
The value of 'a' in to give phase margin = 45o will be

 1.414.
 0.707.
 1.18.
 0.9.

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Control Systems
Differentiation of parabolic response is a -------------- response?

 ramp
 parabolic
 step
 impulse

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Control Systems
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

 0
 1
 2
 3

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Control Systems
What is the type of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback?

 0
 1
 2
 3

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Control Systems
Lowest critical frequency is due to zero and it may be present at the origin or nearer to the origin, then the type of network is

 LC circuit.
 RL Circuit.
 RC circuit.
 RLC circuit.

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Control Systems
Consider the following statements for phase lead compensation:

 both 1 and 2
 nether 1 nor 2
 Phase lead compensation shifts the gain crossover frequency to the right
 The maximum phase lag occurs at the arithmetic mean of the two corner frequencies.

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