Mean of the numbers 0,1,2,3,…n with respective weight nC0,nC1,nC2,..,nCn is

1.  2n/n+1

2.  2n+1/n+1

3.  n/2

4.  none of these

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4
Correct Answer :

n/2


Explanation :
No Explanation available for this question

A transfer function G(s) has the pole-zero plot as shown in the given figure. Given that the steady state gain is 2, the transfer function G(s) will be given by

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

If the open-loop transfer function is a ratio of a numerator polynomial of degree ‘m’ and a denominator polynomial of defree ‘n’, then the integer(n-m) represents the number of

1.  Break-away points

2.  Unstable poles

3.  Separate root loci

4.   Asyntotes

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4
Correct Answer :

Asyntotes


Explanation :
No Explanation available for this question

Given the relationship between the input u(t) and the output y(t) to be The transfer function Y(s)/U(s) is

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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The transfer function d(s) to y(s) is

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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The addition of open loop zero pulls the root-loci towards

1.  The left and therefore system becomes more stable

2.  The right and therefore sysyem becomes unstable

3.  Imaginary axis and therefore system becomes marginally stable

4.   The left ans therefore system becomes unstable

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4
Correct Answer :

The left and therefore system becomes more stable


Explanation :
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. For the Nichols plot shown, the system is

1.  Unstable

2.  Stable

3.  Overdamped

4.  Critically stable

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4
Correct Answer :

Stable


Explanation :
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Which of the following is the response of a spring-mass-damper with under-damping

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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A linear time-invariant system initially at rest, when subjected to a unit-step input, gives a response y|t|=te-t, t>0. The transfer function of the system is

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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For what positive value of K does the polynomial s4+8s3+24s2+32s+K have roots with zero real parts

1.  10

2.  20

3.  40

4.  80

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4
Correct Answer :

80


Explanation :
No Explanation available for this question
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