Related Questions

One of the advantages of base modulation over collector modulation of a transistor class C amplifier is
A Improved efficiency
B Better linearity
C High power output per transistor
D The lower modulating power requirement
Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.
A Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology
B Ethernet, because it is cabled using fiber-optic cable
C Token-Ring, because it uses a MAU
D Ethernet, because it can be set up with most topologies and can use multiple transfer speeds
E Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.
A Pulverised fuel
B Travelling grate stoker firing
C Circulating fluidised bed
D Fluidised bed
In Pulse Code Modulation system
A Large bandwidth is required
B Quantising noise can be overcome by companding
C Quantising noise can be reduced by decreasing the number of standard levels
D Suffers from the disadvantage of its incompatibly with TDM
In case of low level amplitude modulation system, the amplifiers following the modulated stage must be
A Class C amplifiers
B Linear devices
C Non-linear devices
D Harmonic devices
The most commonly used supplementary restraint system (SRS) component is
A Seat belt
B Brake
C Airbag
D Steering
In India, ___________ modulation is used for radio transmission
A Frequency
B Amplitude
C Phase
D None of the above
Which of the following is used for modulation and demodulation?
A modem
B protocols
C gateway
D multiplexer
E None of the above
Which of the following represents the correct set of modulation classification?
A Frequency, time period
B Frequency, amplitude
C Amplitude, wavelength
D Wavelength, frequency
Which of the following performs modulation and demodulation?
A coaxial cable
B modem
C fiber optic
D satellite

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