Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ? 1. 0. 2. 3. TRUE ANSWER : ? YOUR ANSWER : ?
Transfer function of zero order hold response is (1 / s) × (1 - e-st). (1 / s) × (1 - est). (s) × (1 - est). (1 / s) × e-st. TRUE ANSWER : ? YOUR ANSWER : ?
A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage? 1.0 Volt. 1.5 Volt. 2.5 Volt. 2.0 Volt. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following combinations is/are correct electrical analogous elements in force-current analogy? Spring element (K) --------- Inverse inductance (1/L) Velocity (v) ----------------- Voltage (V) All of these Force (f) --------------------- Current (i) TRUE ANSWER : ? YOUR ANSWER : ?
The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is 60° 30° 45° 80° TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following is the steady state error for a step input applied to a unity feedback system with the open loop transfer function G(s) = 10/(s²+14s+50)? infinite 0 1 0.83 TRUE ANSWER : ? YOUR ANSWER : ?
Let P = Number of open loop poles and Z = Number of open loop zeros and P > Z, find the number of branches terminating at ∞? P Z P - Z Any of the above TRUE ANSWER : ? YOUR ANSWER : ?
Time constant is defined as the time taken by the response of the system to reach ----------- ? 70.7% of the final value 100% of the final value 63% of the final value 50% of the final value TRUE ANSWER : ? YOUR ANSWER : ?
The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If the gain k is increased to infinity, then damping ratio will tend to become unity 0.707 zero infinite TRUE ANSWER : ? YOUR ANSWER : ?
A control system has open loop transfer function . Break away point is lies between any of the above. 0 and 4. -4 and -6. 0 and -4. TRUE ANSWER : ? YOUR ANSWER : ?