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Control Systems

Control Systems
Find the bandwidth of the system, when rise time of the system is give as 1msec?

 750 Hz
 350 Hz
 500 Hz
 1 kHz

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Control Systems
Which of the following combinations is/are correct electrical analogous elements in force-current analogy?

 Force (f) --------------------- Current (i)
 Spring element (K) --------- Inverse inductance (1/L)
 Velocity (v) ----------------- Voltage (V)
All of these

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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
The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the final value?

 3/5
 1
 0
 1/4

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Control Systems
Which of the following is/are the characteristics of negative feedback control system?

All of these
 Reduction in gain at the expense of better stability
 Low sensitivity to parameter variations
 Rejection of disturbance signals

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Control Systems
Negative feedback in a closed loop control system

 reduces sensitivity to parameter variation.
 reduces gain.
 improves disturbance rejection.
All of these

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