Spectrum Analysis of Sampling Process
Spectrum Analysis of Sampling Process 1. Statement (I): Aliasing occurs when the sampling frequency is less than twice the maximum frequency in the signal. Statement (II): Aliasing is a reversible…
Feedback Compensation
Feedback Compensation 1. Which of the following are the not characteristics of the closed loop systems? a) It does not compensate for disturbance b) It reduces the sensitivity of plant-parameter…
Tuning of PID Controllers
Tuning of PID Controllers 1. The input of a controller is a) Sensed signal b) Error signal c) Desired variable value d) Signal of fixed amplitude not dependent on desired…
Cascade Compensation in Frequency Domain
Cascade Compensation in Frequency Domain 1. A phase lead compensation leads to: a) Increase in overshoot b) Reduction in bandwidth of closed loop system c) Reduction in rise time of…
Cascade Compensation in Time Domain
Cascade Compensation in Time Domain 1. A proportional controller leads to: a) Zero steady state error for step input for type 1 system b) Zero steady state error for step…
Realization of Basic Compensators
Realization of Basic Compensators 1. Which of the following is not the correct reason to select feedback compensation over cascaded one? a) No amplification is required as the energy transfer…
Preliminary Considerations of Classical Design
Preliminary Considerations of Classical Design 1. The most important consideration for designing of control system are: a) Transient response measures b) Steady state error c) Temporary response d) Final response…
The Design Problem
The Design Problem 1. What should be the nature of bandwidth for a good control system? a) Large b) Small c) Medium d) All of the mentioned Answer: a Explanation:…
Closed-Loop Frequency Response
Closed-Loop Frequency Response 1. Closed loop frequency response is very useful as : a) It approximately predicts the time response of the systems b) Time response are converted into time…
Assessment of Relative Stability Using Nyquist Criterion
Assessment of Relative Stability Using Nyquist Criterion 1. The phase margin (in degrees) of a system having the loop transfer function G(s) H(s)=2√3/s(s+1) is: a) 45° b) -30° c) 60°…
