1.  0

2.  1

3.  -1

4.  None of these

5.  Rs 300

6.  Rs. 500

7.  Rs. 400

8.  Rs. 250

8
Correct Answer :

Rs 300

Explanation :
No Explanation available for this question

# The output of the gated network shown in the figure is

1.

2.

3.  AB + CD + EF

4.  (A+B) (C+D)(E+F)

4
Correct Answer :

AB + CD + EF

Explanation :
No Explanation available for this question

# A binary signals s1(t) is +1 or -1 V pulse during the interval (0,T). Additive white noise with PSD n/2 = 10-5 W/Hz is added to the signal. Then the maximum bit rate that can be sent having a bit probability of Pe ≤ 10-4. Given Q(x) = 10-4 →x = 3.71

1.  3.16 kb/sec

2.  14.52 kb/sec

3.  7.26 kb/sec

4.  none of these

4
Correct Answer :

7.26 kb/sec

Explanation :
No Explanation available for this question

# Part of a digital phase meter is shown in the figure, If the input signals are VR(t) = VR sin ω t and VP(t) = VP sin (ω t + 300) the reading of the meter will be

1.  300

2.  3300

3.  1500

4.  2100

4
Correct Answer :

2100

Explanation :
No Explanation available for this question

# In high resolution TV picture consisting 2×106 picture elements and 16 different brightness level, pictures are repeated at the rate of 32 per second. Assuming all picture elements are independent at all levels have equal likelihood of occurrence conveyed

1.  128 Mb/sec

2.  256 Mb/sec

3.  64 Mb/sec

4.  32 Mb/sec

4
Correct Answer :

256 Mb/sec

Explanation :
No Explanation available for this question

# Assuming that only the X and Y logic inputs are available and their complements and are not available, what is the minimum number of two-input NAND gates require to implement X ⊕ Y

1.  2

2.  3

3.  4

4.  5

4
Correct Answer :

5

Explanation :
No Explanation available for this question

# In a digital communication system employing FSK, the 0 and 1 bit are represented by sine waves of 10 KHz and 25 KHz respectively. These waveforms will be orthogonal for a bit interval of

1.  45 μ sec

2.  200 μ sec

3.  50 μ sec

4.  250 μ sec

4
Correct Answer :

200 μ sec

Explanation :
No Explanation available for this question

# The auto correction function of an energy signal has

1.   no symmetry

2.  conjugate symmetry

3.  odd symmetry

4.  even symmetry

4
Correct Answer :

even symmetry

Explanation :
No Explanation available for this question

# For a random variable x following the probability density function, p(x) in figure, the mean and the variance are respectively

1.  1/2 and 2/3

2.  1 and 4/3

3.   1 and 2/3

4.  2 and 4/3

4
Correct Answer :

1 and 4/3

Explanation :
No Explanation available for this question

# A 3-bit weighted resistor DAC shown in the figure has VR =2V and R1R = 2. For an input of 100, the output will be

1.  – 2V

2.  – 4V

3.  2V

4.  4 V

5.  Rs. 140

6.   Rs.200

7.  Rs.240

8.  Rs.100

9.  Rs.220

9
Correct Answer :

Rs.100

Explanation :
No Explanation available for this question

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