Question 21 : Delta modulation uses _____ bits per sample.
1. One
2. Two
3. Four
4. Eight
View Answer   Discuss with Members

Question 22 : Multiplication of input signal with pulse train is done in ________ sampling.
1. Impulse sampling
2. Natural sampling
3. Flat top sampling
4. None of the mentioned
View Answer   Discuss with Members

Question 23 : The method which has greater bandwidth efficiency is called as
1. Duobinary signalling
2. Polybinary signalling
3. Correlative coding
4. All of the mentioned
View Answer   Discuss with Members

Question 24 : The size of the quantile interval is called as
1. Inter level
2. Step size
3. Quantile size
4. Level width
View Answer   Discuss with Members

Question 25 : Adaptive DPCM is used to
1. Increase bandwidth
2. Decrease bandwidth
3. Increase SNR
4. None of the mentioned
View Answer   Discuss with Members

Question 26 : Which method is preferred in magnetic tape recording?
1. NRZ-L
2. NRZ-M
3. NRZ-S
4. None of the mentioned
View Answer   Discuss with Members

Question 27 : In duobinary signalling method, for M-ary transmission, the number of output obtained is
1. 2M
2. 2M+1
3. 2M-1
4. M2
View Answer   Discuss with Members

Question 28 : The distortion in quantization is called as
1. Round off error
2. Truncation error
3. Round off & Truncation error
4. None of the mentioned
View Answer   Discuss with Members

Question 29 : Which waveform has the feature of error detection?
1. NRZ-L
2. RZ-AMI
3. Manchester coding
4. Duobinary
View Answer   Discuss with Members

Question 30 : Which value of μ corresponds to linear amplification?
1. μ=0
2. μ=1
3. μ>0
4. μ<0
View Answer   Discuss with Members