Natural frequency of a unity feedback control system of transfer function G(s) = (10/s(s+1))  is

1.   3.16 rad/sec

2.  0.5 rad/sec

3.  4.6 rad/sec

4.  None of these

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4
Correct Answer :

3.16 rad/sec


Explanation :
No Explanation available for this question

The Boolean expression for the output of the logic circuit shown in the figure is

1.  Y = AB + AB + C

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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Which of the following demodulator can be used for demodulating the signal X(t) = 5(1 + 2 cos 2000π t) cos 2000 π t

1.  Envelop demodulator

2.  Square-law demodulator

3.  Synchronous demodulator

4.  None of these

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4
Correct Answer :

Square-law demodulator


Explanation :
No Explanation available for this question

The number of comparisons carried out in a 4 bit flash-type A/D converter is

1.  16

2.  15

3.  4

4.  4

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4
Correct Answer :

15


Explanation :
No Explanation available for this question

An AWGN channel with 4 KHz bandwidth and noise power spectral density n/2 = 10-12 W/Hz. The signal power required at the receiver is 0.1 mW. The capacity of the channel will be

1.  54.44 Kb/sec

2.  8 Kb/sec

3.  64.44 Kb/sec

4.  34.32 Kb/sec

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4
Correct Answer :

54.44 Kb/sec


Explanation :
No Explanation available for this question

1.   60%

2.   40%

3.  20%

4.  10%

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4
Correct Answer :

40\%


Explanation :
No Explanation available for this question

A 10 bit A/D converter is used to digitize an analog signal in the 0 to 5 V range. The maximum peak to peak ripple voltage that can be allowed in the d. c. supply voltage is

1.  nearly 100 mV

2.  nearly 50 mV

3.  nearly 25 mV

4.  nearly 5.0 mV

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4
Correct Answer :

nearly 5.0 mV


Explanation :
No Explanation available for this question

Which of the following can be achieved by using the reset terminals in a tuner chip

1.  Keyed oscillations

2.  Delayed mono stable

3.  square wave generation

4.  Pulse generation

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4
Correct Answer :

Pulse generation


Explanation :
No Explanation available for this question

Given an angle modulated signal then the frequency deviation will be

1.   5 KHz

2.  1 KHz

3.  2 KHz

4.  10 KHz

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4
Correct Answer :

5 KHz


Explanation :
No Explanation available for this question

The switching circuit given in the figure can be expressed in binary logic notation as

1.  L = (A+B) (C+D) E

2.  L = AB + CD + E

3.  L = E + (A+B) (C+D)

4.  L = (AB+CD) E

View Answer  
4
Correct Answer :

L = (A+B) (C+D) E


Explanation :
No Explanation available for this question
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