# Control Systems [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 60 - 65 of 81

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## Question 60

Appeared in Year: *2015*

### Question

Numeric Answer▾A unity negative feedback system has an open-loop transfer function The gain K for the system to have a damping ratio of 0.25 is …

## Question 61

Appeared in Year: *2016*

### Question

Numeric Answer▾In the feedback system shown below

The positive value of k for which the gain margin of the loop is exactly and the phase margin is exactly zero degrees is …

## Question 62

Appeared in Year: *2015*

### Question

MCQ▾For the given signal flow graph shown in the figure, the value of is

### Choices

Choice (4) | Response | |
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d. |

## Question 63

Appeared in Year: *2016*

### Question

MCQ▾Match the inferences and , about a system, to the corresponding properties of the elements of first column in Routh՚s Table of the system characteristics equation.

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. |

## Question 64

Appeared in Year: *2016*

### Question

Numeric Answer▾The transfer function of a linear time invariant system is given by

the number of zeros in the right half of the s-plane is …

## Question 65

Appeared in Year: *2015*

### Question

Numeric Answer▾For the system shown in figure, lies on the root locus if is …