Related Questions

Which one of the following statements about differential pulse code modulation (DPCM) is true?
A The sum of message signal sample with its prediction is quantized
B The message signal sample is directly quantized, and its prediction is not used
C The difference of message signal sample and a random signal is quantized
D The difference of message signal sample with its prediction is quantized
The minimum duration of pulse in a pulse triggering system for thyristors should be at least
A 10μs
B 30ms
C 10ms
D 1s
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
A reduction of 21% in the price of pulse enables a person to by 10.5 kg more for Tk. 100. How much is reduced per kg of pulse?
A Tk 2.50
B Tk 2.25
C Tk 2
D Tk 2.30
The maximum recommended pulse rate R, when exercising , for a person who is x years of age is given by the equation R = 176- 0.8 x. what is the age , in years , of a person whose maximum recommended pulse rate when exercising is 140?
A 40
B 45
C 50
D 55
The maximum recommended pulse rate R, when exercising .for a person who is x years of age is given by the equation R = 176 - 0.8 x . what is the age, in years , of a person whose maximum recommended pulse rate when exercising is 140?
A 40
B 45
C 50
D 55
In an electric circuit, the reaction of a circuit to a given pulse input is known as the pulse response.
A True
B False
If a periodic pulse waveform has a pulse width and the time between pulses each equal to or greater than five time constants, the capacitor will
A Partially charge and fully discharge during each period of the input waveform
B Fully charge and partially discharge during each period of the input waveform
C Fully charge and fully discharge during each period of the input waveform
D Partially charge and partially discharge during each period of the input waveform
A shift register moves the _____ left or right. Serial loading means storing a word in a shift register by entering _____ bit per clock pulse. With parallel or broadside loading, it takes only one _____ pulse to load the input word.
A light, eight, clock
B right, eight, clock
C bits, one, register
D bits, one, clock
E None of the above
For telegraphy the most commonly used modulation system is
A FSK
B Two tone modulation
C PCM
D Single tone modulation

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