List of top Questions asked in Andhra Pradesh Post Graduate Engineering Common Entrance Test

The use of non-uniform quantization leads to
A transfer function of control system does not have pole-zero cancellation. Which one of the following statements is true?
If the highest modulation frequency is 5 kHz, find out bandwidth.
Identify the true statement with reference to immediate addressing mode
In PCM, if the number of quantization levels is increased from 4 to 64, then the bandwidth requirement will approximately equal to
At a given probability of error, binary coherent FSK is inferior to binary coherent PSK by
Which of the following analog modulation schemes requires the minimum transmitted power and minimum channel bandwidth?
In the signal flow graph of figure \( \frac{y}{x} \) equals
signal flow graph of figure
Routh Hurwitz criterion is used to determine
If the characteristic equation of a closed-loop system is \( s^2 + 2s + 2 = 0 \), then the system is
In a Proportional-Integral-Derivative (PID) controller
Consider a stable linear time-invariant (LTI) system with a transfer function G(s). Which of the following statements regarding Bode and Nyquist plots is true?
The roots of the characteristic equation \(2S^3 + 3S^2 + 4S + 6 = 0\) are
Which one of the following is not the property of root loci?
A signal is processed by a causal filter with transfer function \( G(s) \). For a distortion-free output signal waveform, \( G(s) \) must
Which type of control system uses both feedforward and feedback control strategies?
According to Nyquist stability criterion, where should be the position of all zeros of $G(s)$ corresponding to $s-plane$?
According to Nyquist stability criterion, where should be the position of all zeros of \( G(s) \) corresponding to \( s \)-plane?
The open-loop DC gain of a unity negative feedback system with closed-loop transfer function is given by \( \frac{5}{4 + 5s + 13s^2} \), what is the open-loop DC gain?
The polar plot of a transfer function passes through the critical point (+1,0). Gain margin is
Find the initial value, if it exists of the signal with Laplace transform given below:
\[ X(s) = \frac{s + 4}{s^2 + 3s + 5} \]
Fourier transform of \( x(t) = e^{-at}u(t - 2) \) is
As \( x \) is increased from \( -\infty \) to \( \infty \), the function \( f(x) = \frac{e^x}{1+e^x} \) behaves as
What is the fundamental angular frequency in rad/sec for the given waveform?
fundamental angular frequency in rad/sec
A discrete-time signal \( x[n] = \sin(\pi n^2) \), where \( n \) is an integer, is