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ECE - Practice Test - 60

Q1:

List-I shows name of the controllers and List-II shows properties of the controllers respectively. The correct option which exactly relates number of list-I and list-II is

 

List-I

 

List-II

A.

Proportional controller

1.

Eliminates the steady state error but makes transient response worse

B.

Integral controller

2.

Increase stability improves the transient response.

C.

Derivative controller

3.

Reduce rise time but does not eliminate steady state error.

D.

Proportional plus derivative controller

4.

Affects steady state error only if it varies with time.

 

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PlaceMe2_CS5
Section:
Control Systems
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Q2:

G(s)=(0.5s+1)(0.05s+1)maximum phase lead of the compensator is

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Section:
Control Systems
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Q3:

Example of continuous controller mode is

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Section:
Control Systems
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Q4:

A compensator has following state model equations

[x1x2]=[01−6−5][x1x2]+[01]Uand y=[−20][x1x2]+[1] U

Determine the transfer function of compensator

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PlaceMe2_CS5
Section:
Control Systems
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Q5:

A lead-lag N/w consists of

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Section:
Control Systems
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Q6:

Lead-lag and lag-lead compensators respectively are:

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Section:
Control Systems
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Q7:

Ideal Controller can be implemented using_____

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Section:
Control Systems
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Q8:

Which non-ideal controller can be implemented using Active elements, Passive elements or Combination of Both?

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Section:
Control Systems
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Q9:

The state matrix is A =[1001]. The state transition matrix eAT will be given by

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Section:
Control Systems
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Q10:

If ϕ(2) is state transition matrix the value of ϕ(0) = ………… .

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Section:
Control Systems
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Q11:

State transition matrix ϕ(t) is …………… .

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Section:
Control Systems
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Q12:

The state variable description of a linear system is X = AX where ‘x’ is a state vector and A =[0220]. The poles of the system is located at

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PlaceMe2_CS5
Section:
Control Systems
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Q13:

The state equation of an LTI system is given by x=[01−2−3]x+[0101]u. The eigen values are

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Section:
Control Systems
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Q14:

The state space description of a system is given as

[x1x2]=[−200−u]x+[01]u

y=[10][x1x2]. The above system is

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PlaceMe2_CS5
Section:
Control Systems
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