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WorksheetsAd Comm Pre Quiz
Total questions: 10
Worksheet time: 12mins
ASK, FSK, PSK, QPSK, QAM etc are
Digital Base-band Modulation Techniques
Digital Band-pass Modulation Techniques
Analog Modulation Techniques
Line Coding Techniques
Which One is also know as ON-OFF keying?
ASK
FSK
PSK
OFDMA
Q(x) is (Q Function)
Probability that a 0 mean unit variance Poisson Distributed Random variable to take values greater than x
Probability that a zero mean unit variance Gaussian Distributed Random variable to take values less than x
Probability that a unity mean infinite variance Gaussian Distributed Random variable to take values less than x
Probability that a zero mean unit variance Gaussian Distributed Random variable to take values greater than x
Q(x) =
21erfc(2x)
erfc(x2)
erfc(x2)
None of the above
erfc(x)=1−erf(x) True or False?
True
False
Select all the figures which defines the respective functions correctly.
None
Optic Fiber works on the principle of
Interference
Diffraction
Total Internal Reflection
None
Numerical Aperture of an optical Fiber is a measure of
Strength of the material used
Light gathering capacity
Gain provided by fiber to transmitted light
None
O/P?
None
Which among the following are not characteristics of Ideal Op Amp? (Select all applicable)
Infinite Bandwidth
Infinite Open Loop Gain
Zero Input Resistance
Infinite Output Resistance
Zero OFFSET.
