Related Questions

A waveguide operated below cut off frequency can be used as
A Phase shifter
B An attenuator
C An isolator
D None
A tailor had a number of shirt pieces to cut from some large pieces of fabric. He cut each large piece into 10 smaller pieces. He cut at the rate of 45 cuts per minute . How many large pieces would be cut in 24 minutes?
A 32
B 54
C 108
D 120
A tailor had a number of shirt pieces to cut from large piece pieces of fabric. He cut each large piece into 10 smaller pieces. He cut at the rate of 45 cuts per minute. How many large pieces would be cut in 24 minutes?
A 32
B 54
C 108
D 120
A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 10 pieces. He cut at the rate of 45 cuts a minute. How many rolls would be cut in 24 minutes ?
A 32 rolls
B 54 rolls
C 108 rolls
D 120 rolls
The upper or lower cut off frequency is also called ___________ frequency
A Resonant
B Sideband
C 3 db
D None of the above
In the above question, what are the values of cut-off frequencies?
A 140 kHz , 60 kHz
B 1020 kHz , 980 kHz
C 1030 kHz , 970 kHz
D None of the above
The frequency generated by each decade in a direct frequency synthesizer is much higher than the frequency shown; this is done to
A Reduce the spurious frequency problem
B Increase the frequency stability of the synthesizer
C Reduce the number of decades
D Reduce the number of crystals required
What do you call an attenuation that occurs over many different wavelengths of the carrier?
A Rayleigh fading
B Ricean fading
C Wavelength fading
D Slow fading
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include
A Antenna replacement and feed correction
B Amplitude timing and phase correction
C Polarization shifting and code diversity
D Path diversity and frequency diversity
For attenuation of high frequencies we should use
A Shunt capacitance
B Series capacitance
C Inductance
D Resistance

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