Telecom Engineering Quiz

Which among the following are supported by LAN:-

Peak  voltage   of  a carrier   is  8 kV , each  sideband   has an amplitude  of  800V.  Find  its  modulation  index:-

Eigen function  are not  orthogonal :-

Signal  to  noise   ratio  for  a  hi fi system   is  equal  to :-

A trivalent impurity has _____________ valence electrons:-

Signal  and  its  Hilbert  transform  have   same  energy  density  spectrum :-

A rating of 50 dB indicates a cable shield effectiveness that is considered to be:-

Quantum well laser are providing high inherent advantage over:-

Band  pass  filter  allows   a  range of frequencies   to  pass :-

AM  spectrum  consist of :-

In  which  exceptions  does  the  external   event  causes   the  exception:-

What is the standard form of SPC;-

Demodulation is  recovering   information  from  a  modulated   signal ;-

Any signal   and  Its  Hilbert  transform  are  mutually orthogonal:-

Which  stage  is  present  in FM  receiver  but not in AM  receiver:-

Polarization model noise can _________ the performance of communication system:

The end terminal  in message  switching  is:-

The threshold temperature coefficient for In GaAsP device is in the range of:-

At the temperature of a transistor goes up, the base emitter resistance:-

A zener diode utilize ____________ characteristics for  its operation;-

Aspect ratio is  the ratio of ;-

The leakage current across a PN  junction is due to:-

In FM modulation, when the modulation index increase , transmitter power is:-

FSK system  involves :-

In circuit switching ___________ switches are used:-