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Control Systems

Control Systems
The system having characteristic equation is used to be an oscillator. What is the value of k?

 1
 2
 3
 4

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Control Systems
The device necessarily used for automatic temperature control in a furnace is

 Any of above.
 Thermostat.
 Thermocouple.
 Auto-transformer.

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

 1 kHz
 350 Hz
 750 Hz
 500 Hz

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Control Systems
Number of sign changes in the entries in 1st column of Routh array denotes the no. of

 roots of characteristic polynomial in RHP.
 zeroes of system in RHP.
 open loop poles in RHP.
 open loop zeroes in RHP.

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Control Systems
Which system is also known as automatic control system?

 Closed loop control system
 Either 1 or 2
 Nether 1 nor 2
 Open loop control system

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Control Systems
A second order control system has a transfer function 16/(s² + 4s + 16). What is the time for the first overshoot?

 2π/√3 sec
 π/4√3 sec
 π/2√3 sec
 π/√3 sec

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