1
GATE ECE 2009
MCQ (Single Correct Answer)
+2
-0.6
The amplitude of random signal is uniformly distributed between $$-$$5V and 5V

If the signal to quantization noise ratio required in uniformly quantizing the signals is 43.5 dB, the step size of the quantization is approximately

A
0.0333 V
B
0.05 V
C
0.0667 V
D
0.10 V
2
GATE ECE 2009
MCQ (Single Correct Answer)
+2
-0.6
The amplitude of random signal is uniformly distributed between $$-$$5V and 5V

If the positive values of the signal are uniformly quantized with a step size of 0.05 V, and the negative values are uniformly quantized with a step size of 0.1V, the resulting signal to quantization noise ratio is approximately

A
46 dB
B
43.8 dB
C
42 dB
D
40 dB
3
GATE ECE 2009
MCQ (Single Correct Answer)
+2
-0.6
The unit step response of an under-damped second order system has steady state value of -2. Which one of the following transfer function has these properties?
A
$$\frac{-2.24}{s^2\;+\;2.59s\;+\;1.12}$$
B
$$\frac{-3.82}{s^2\;+\;1.91s\;+\;1.91}$$
C
$$\frac{-2.24}{s^2\;-\;2.59s\;+\;1.12}$$
D
$$\frac{-3.82}{s^2\;-\;1.91s\;+\;1.91}$$
4
GATE ECE 2009
MCQ (Single Correct Answer)
+2
-0.6
The Nyquist plot of a stable transfer function G(s) is shown in the figure. We are interested in the stability of the closed loop system in the feedback configuration shown. GATE ECE 2009 Control Systems - Frequency Response Analysis Question 31 English 1 GATE ECE 2009 Control Systems - Frequency Response Analysis Question 31 English 2 Which of the foloowing statements is true?
A
G(s) is is an all-pass filter.
B
G(s) has a zero in the right-half of S-plane.
C
G(s) is the impedance of a passive network.
D
G(s) is marginally stable.
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