The digital circuit shown in the figure generates a modified clock pulse at the output.choose the correct output waveform from the options given below:

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

In the Schmitt trigger circuit shown in the figure.if VCE(SAL)=0.1 V,the output logic low level (VOL) is

1.  1.25 V

2.  1.35 V

3.  2.50 V

4.  5.00 V

View Answer  
4
Correct Answer :

1.35 V


Explanation :
No Explanation available for this question

If the following program is executed in a microprocessor,the number of instruction cycles it will take from START to HALT is

1.  4 START MVI A,14H;Move 14H to register A  

2.  8 SHIFT RLC;Rotate left without carry

3.  13 JNZ SHIFT;Jump on non-zero to SHIFT

4.  16 HALT

View Answer  
4
Correct Answer :

13 JNZ SHIFT;Jump on non-zero to SHIFT


Explanation :
No Explanation available for this question

For the equation,S3-4S2+S+6=0 the number of roots in the left half of s-plane will be

1.  zero

2.  one

3.  two

4.  three

View Answer  
4
Correct Answer :

two


Explanation :
No Explanation available for this question

For the block diagram shown in the figure,the transfer function is equal to

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

The state variable description of a linear autonomous system is,X=AX,where X is the two dimensional state vector and A is the system matrix given by A=.The roots of the characteristic equation are

1.  -2 and +2

2.  -j2 and +j2

3.  -2 and -2

4.  +2 and +2

View Answer  
4
Correct Answer :

-2 and +2


Explanation :
No Explanation available for this question

The block diagram of a closed loop control system is given by figure,the values of K and P such that the system has a damping ratio of 0.7 and an undamped natural frequency of 5rad/sec are respectively equal to

1.  20 and 0.3

2.  20 and 0.2

3.  25 and 0.3

4.  25 and 0.2

View Answer  
4
Correct Answer :

25 and 0.2


Explanation :
No Explanation available for this question

The unit impulse response of a second order under-damped system starting from rest is  given by c(t)=12.5 e-6t sin 8 t,t≥0.The steady value of the unit step response  of the system is equal to

1.  0

2.  0.25

3.  0.5

4.  1.0

View Answer  
4
Correct Answer :

1.0


Explanation :
No Explanation available for this question

In the system shown in the figure,the input x(t)=sin t.In the steady-state,the response y(t) will be

1.  

2.  

3.  sin(t-45o)

4.  sin(t-45o)

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

The loop transfer function of a unity feedback control system is given as G(s)=.The value of ‘a’ to give a phase margin of 45o is equal to

1.  0.141

2.  0.441

3.  0.841

4.  1.141

View Answer  
4
Correct Answer :

0.841


Explanation :
No Explanation available for this question
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