1. The two sides of a fair coin are labeled as 0 and 1. The coin is tossed two times independently. Let M and N denote the labels corresponding to the outcomes of those tosses. For a random variable X, defined as X = min (M, N), the expected value E(X) (rounded off to two …
Probability and Random Variable MCQ || Random Variables Questions and Answers Read More »
1. GPRS stands for General Packet Radio Service Global Positioning Radio Service Geological Packet Radio Service Geological Positioning Radio Service 2. Assertion A): If the frequencies are in the microwave range, H, Y, and Z parameters can not be measured. Reason R): Short and open circuits are difficult to achieve over a broadband of …
Fundamentals of Error Correction MCQ || Error Correction Questions and Answers Read More »
1. Calculate the Nyquist rate for sampling when a continuous-time signal is given by: x(t) = 5 cos 100πt +10 cos 200πt – 15 cos 300πt 100 Hz 150 Hz 300 Hz 600 Hz 2. Consider two real valued signals, x(t) band-limited to [- 500 Hz, 500 Hz] and y(t) band-limited to [-1 kHz, …
Sampling MCQ || Sampling in communication Engineering Questions and Answers Read More »
1. The main difference between synchronous and asynchronous transmission is that The clocking is derived from the data in synchronous transmission The clocking is mixed with the data in asynchronous transmission The pulse height is different The bandwidth required is different 2. Let Y(t) = e−πt2 and h(t) is a filter matched to y(t). …
Baseband Transmission MCQ || Baseband Transmission Questions and Answers Read More »
1. If the bit rate for an ASK signal is 800 bps, the baud rate is: 1600 baud 400 baud 600 baud 800 baud 2. The bandwidth of BFSK is ______ BPSK Higher than The same as Lower than None of the other options 3. ASK, PSK, FSK, and QAM is the examples …
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1. To increase the rate of communication by log2M in M-array communication, the power requirement increased by 2M M2 MM 2M 2. The limit which represents the threshold Eb/N0 value below which reliable communication cannot be maintained is called as Probability limit Error limit Shannon limit Communication limit 3. The length of cable …
M-Ary Signalling MCQ || M-Ary Signalling Questions and Answers Read More »
1. White noise is that signal whose frequency spectrum Extends over finite range Has flat spectral density Has special density varying as 1/f Has limited number of frequency components 2. The RF amplifier A is having 3 dB NF & 5 dB of gain, amplifier B is having 3.5 dB NF & 15 dB. …
1. ______ works by merging two or more sources of light to create an interference pattern, which can be measured and analyzed. Interferometer Power Meter Optical Meter None of the above 2. What does N, P and L mean in the N.P.L. Gauge interferometer? Nikon pulsed laser Nuclear plasma laboratory National Physics Laboratory Nuclear …
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1. The advantage of ILD over LED is ILD emits incoherent light whereas LED emits coherent light In ILD it is difficult to couple light whereas in LED it is easy to couple light In ILD coupling loss is more whereas in LED coupling loss is less ILD emits coherent light whereas LED emits incoherent …
Optical Sources MCQ || Optical Sources and Detector Questions and Answers Read More »
Ques.1. 1. An odd and imaginary signal always has an odd and real Fourier transform. 2. The convolution of an odd Fourier transform with an even Fourier transform is always even. Which of the above statements is/are true: 1 & 2 1 only 2 only None of the above 2. In a communication system …
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