List of top Electronics and Communication Engineering Questions on Signals and Systems asked in AP ECET ECE

Which of the following RADAR cannot be used for range measurement?
A scope in RADAR system displays
The spectral density of White noise is
In a commercial FM broadcasting the maximum frequency deviation is
A capacitor of \(0.5\,\mu F\) is used to tune a signal of \(200\,kHz\). The tuning frequency is
For M-ary PSK, the signal constellation is
The Nyquist sampling rate for a signal band limited to \(4\,kHz\) is
The modulation method that represents bits as different phase shifts of a carrier is
The data rate of a binary signal with a bit time 11.5 microseconds is
An AM wave is given by \(C(t)=10[1+0.4\cos(10^4 t)+0.3\cos(10^5 t)]\cos(10^6 t)\). The modulation index of the envelope is
The envelope detector is
The SSB-SC can be obtained from balanced modulator by connecting at its output a
Which of the following circuits is an indirect method of generating FM?
The function of a pre-emphasis circuit in a communication system is to boost
Correct Marks: 1 Wrong Marks: 0
Which of the following is active transducer?
What type of transducer is used to convert force into electrical signals?
What is the function of a signal generator?
In broadcast television, the number of scanning per frame is chosen to be an odd number to