A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is 5 4 10 6.5 TRUE ANSWER : ? YOUR ANSWER : ?
With regard to filtering property, the lead compensator is low pass filter band reject filter high pass filter bandpass filter TRUE ANSWER : ? YOUR ANSWER : ?
Sparking between the contacts can be reduced by inserting a resistor in the line. a reactor in the line. a capacitor in parallel with the contacts. a capacitor in series with the contacts. TRUE ANSWER : ? YOUR ANSWER : ?
The open loop transfer function of a unity feedback control system is G(s) = 1/((s(s+0.1s)(s+1)). The value of damping factor for which the resonant peek is equal to 1.4 is 0.263 0.953 0.707 0.386 TRUE ANSWER : ? YOUR ANSWER : ?
Adding a pole to a system transfer function in terms of compensator represents a --------------- compensator ? lag-lead lead-lag lag lead TRUE ANSWER : ? YOUR ANSWER : ?
When the input to a system was with drawn at t = 0, its output was found to decrease exponentially from 1000 units to 500 units in 1.386 sec. The time constant of the system is 1.386. 0.500. 2.000. 0.693. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement is/are true statements? Transient state analysis depends on order of the system All of these The steady state analysis depends on type of the system Type of the system is obtained from open loop transfer function TRUE ANSWER : ? YOUR ANSWER : ?
Based on relation between the arm impedances the filters can be categorized into how many types? 2. 4. Not classified at all. 3. TRUE ANSWER : ? YOUR ANSWER : ?
A unity feedback control system has forward loop transfer function as e-Ts/s(s+1). Its phase value will be zero at frequency ω1. Which of the following equations should be satisfied by ω1? ω1 = cot(Tω1) ω1 = tan(Tω1) Tω1 = tan(ω1) Tω1 = cot(ω1) TRUE ANSWER : ? YOUR ANSWER : ?
A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........? 3 1 2 5 TRUE ANSWER : ? YOUR ANSWER : ?