Recent questions and answers in Telecommunication Engineering

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An evanescent mode occurs when:  a. A wave is attenuated rather than propagated. b. The propagation constant is purely imaginary. c. m = 0 = n so that all field components vanish. d. The wave frequency is the same as the cutoff frequency. 

answered May 17, 2018 in Telecommunication Engineering
1 answer 6 views

A half wavelength Dipole antenna has _________ Radiation Pattern  a. Hemispherical b. Omni-Directional c. Isotropic d. End fire

answered May 17, 2018 in Telecommunication Engineering
1 answer 36 views

An antenna located in a city is a source of radio waves. How much time does it take the wave to reach a town 12,000 km away from the city?  a. 36 s b. 20 us c. 20 ms d. 40 ms 

answered May 17, 2018 in Telecommunication Engineering
1 answer 10 views

At Service provider end IMEI number of MS is basically stored in:  a. HLR b. VLR c. AUC d. EIR

answered May 17, 2018 in Telecommunication Engineering
1 answer 11 views

Which cable connects the subscriber telephone to the nearest end office in the local loop.  a. Coaxial b. Fiber-optic c. Twisted-pair d. Both (b) and (c)

answered May 17, 2018 in Telecommunication Engineering
1 answer 13 views

Unlike coax and twisted pair, optical fibers are immune to  a. High-frequency transmission b. Signal attenuation c. Power loss d. Electromagnetic interference

answered May 17, 2018 in Telecommunication Engineering
1 answer 7 views

Regenerative repeaters are placed along the communication path to control:  a. Power b. Noise c. Frequency d. Amplitude 

answered May 17, 2018 in Telecommunication Engineering
1 answer 7 views

The Fourier transform of a gate pulse is:  a. Sinc function b. Triangular function c. Gate function d. Unit step unction

answered May 17, 2018 in Telecommunication Engineering
1 answer 11 views

Which of these materials requires the least value of magnetic field strength to magnetize it?  a. Nickel b. Silver c. Tungsten d. Sodium chloride 

answered May 17, 2018 in Telecommunication Engineering
1 answer 12 views

Where the poles should be placed on the unit circle for stable filter?  a. Outside b. Inside c. both a & b d. none of the above

answered May 17, 2018 in Telecommunication Engineering
1 answer 5 views

Radio frequency ranges from 30MHz to 1GHz and it is suitable for:  a. Point to point transmission b. Omni directional transmission c. Local point to point transmission d. None of the above

answered May 17, 2018 in Telecommunication Engineering
1 answer 5 views

What type of communication use Radio waves:  a. Unicast b. Both (a) and (c) can be used c. Multicast d. None of the above 

answered May 17, 2018 in Telecommunication Engineering
1 answer 8 views

Fast fading occurs if the channel____________ changes rapidly within the symbol duration.  a. Bandwidth b. Frequency c. Impulse response d. None of the above 

answered May 17, 2018 in Telecommunication Engineering
1 answer 43 views

As we know when there is a joint in optical fiber then there will be some loss then this loss be minimized by  a. Using index matching fluid in the gap b. Making V-grooved splicing c. Both (a)and (b) d. Making carefully polishing

answered May 17, 2018 in Telecommunication Engineering
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