List of top Electronics and Communication Engineering Questions asked in Telangana State Post Graduate Engineering Common Entrance Test

A narrowband FM does not have the following feature
The figure of merit ratio of FM to PM for single tone modulating signal is
The image channel rejection in superheterodyne receiver comes from
The plot of modulation index versus carrier amplitude yields a
The positive RF peaks of an AM voltage rise to maximum value of 12V and drop to a minimum value of 4V. Assuming single tone modulation, the modulation index is
Thermal noise is independent of
The characteristic equation of a control system is given by \( s(s+1)(s^2+2s+1)+k(s+2)=0 \). The angles of asymptotes of the root loci are
The limit cycles describe the ____ of non-linear systems
Consider an open-loop unstable system with the transfer function \( G(s)H(s) = \frac{s+2}{(s+1)(s-1)} \) when the feedback path is closed, then the system is
The main advantage of Bode plot is to
Addition of a pole at the origin to a transfer function rotates the polar plot at zero and infinite frequencies by a further angle of
Generally, the bandwidth of a control system indicates ____ characteristic of the system.
Position, velocity and acceleration errors of type 2 control system respectively, are
From the following Routh array table, which tells us that there are
\( S^n \)Col 1Col 2Col 3
\( S^5 \)2 1 
\( S^4 \)321
\( S^3 \)\(-\frac{4}{3}\)\(-\frac{2}{3}\) 
\( S^2 \)\(\frac{1}{2}\)1 
\( S^1 \)2  
\( S^0 \)1  
The \(a_{ij}\) is the ___ of the branch directed from node \(x_i\) to \(x_j\) in signal flow graph. (Note: The blank is after "is the". Assuming it asks what \(a_{ij}\) represents.)
LEA CX,[BX][SI] instruction of 8086 microprocessor indicates where (BX) and (SI) represent the content of BX and SI respectively
For n inputs, k product terms and m outputs, the internal logic of the PLA consists of
The characteristic equation of SR flip-flop is
In priority encoder, if two or more inputs are equal to ____ will take highest priority
The 8-to-3 encoder is also called
The values of the segments 'abcdefg' of seven segment display for the BCD input of '0101'? (Assuming standard segment labeling: a-top, b-top-right, c-bottom-right, d-bottom, e-bottom-left, f-top-left, g-middle. And BCD '0101' is decimal 5.)
Quantization error in ADC is due to
An n-to-m line decoder is used to generate (Note: "n-to-m line decoder" where \(m = 2^n\))
Any Boolean function of n+1 variables can be implemented with ___ multiplexer
Simplify \( AB + A\bar{C} + \overline{A}BC(AB+C) \)