Question 1 : What is the term used to describe the range of an A/D converter for uni-polar signals?
1. Full scale
2. FSR
3. Full-scale region
4. FSS
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Question 2 : The crosshatched areas gives two types of Quantization error in DM ,They are ?
1. Slope-overload distortion
2. Granular noise
3. Slope-overload distortion & Granular noise
4. None of the mentioned
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Question 3 : What are the effects produced by Dm by setting up an integrator at the front of DM?
1. Simplifies the DM decoder
2. Increases correlation of the signal into the DM input
3. Emphasizes the low frequencies of x(t)
4. All of the mentioned
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Question 4 : In the equation x_q(n)=ax_q(n-1)+ d_q(n), if a = 1 then integrator is called?
1. Leaky integrator
2. Ideal integrator
3. Ideal accumulator
4. Both Ideal integrator & accumulator
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Question 5 : If the dynamic range of the signal is smaller than the range of quantizer, the samples that exceed the quantizer are clipped, resulting in large quantization error.
1. True
2. False
3.
4.
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Question 6 : If the interpolation factor is I = 256, the A /D converter output can be obtained by averaging successive non-overlapping blocks of 128 bits.
1. True
2. False
3.
4.
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Question 7 : What is the equivalent time -domain expression of X₊(F)=2V(F)X(F)?
1. F⁽⁺¹⁾2V(F)*F⁽⁺¹⁾X(F)
2. F^(-1)4V(F)*F^(-1)X(F)
3. F^(-1)V(F)*F^(-1)X(F)
4. F^(-1)2V(F)*F^(-1)X(F)
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Question 8 : In the practical A/D converters, what are the distortions and time- related degradations occur during the conversion process?
1. Jitter errors
2. Droops
3. Nonlinear variations in the duration of the sampling aperture
4. All of the mentioned
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Question 9 : For a given number of bits, the power of quantization noise is proportional to the variance of the signal to be quantized.
1. True
2. False
3.
4.
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Question 10 : What is the type of quantizer, if a Zero is assigned a quantization level?
1. Midrise type
2. Mid tread type
3. Mistreat type
4. None of the mentioned
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