# The transfer function Y(s)/U(s) of a system described by the stste equations X(t)=-2x(t)+2u(t) and y(t)=0.5x(t), is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# A linear time-variant system described by the state variable model

1.  Is completely controllable

2.  Is not completely controllable

3.  Is completely observable

4.  Is not completely observable

4

Is not completely controllable

Explanation :
No Explanation available for this question

# A linear second-order single-input continuous-time system is described by the following set of differential equations: (t)=-2X1(t)+4X2(t) (t)=2X1(t)-X2(t)+u(t) Where X1(t) and X2(t) are the state variables and u(t) is the control variable. The system is

1.  controllable and stable

2.  controllable but unstable

3.  uncontrollable and unstable

4.   uncontrollable but stable

4

controllable but unstable

Explanation :
No Explanation available for this question

# The transfer function for the state various representation =AX+Bu, Y=CX+Du, is given by

1.  D+C(sI-A)-1B

2.  B(sI-A)-1C+D

3.  D(sI-A)-1B+C

4.  C(sI-A)-1D+B

4

D+C(sI-A)-1B

Explanation :
No Explanation available for this question

# If system is initially at rest, the response to a unit step is given by the response to a signal is given by

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The system =X+u is

1.  Controllable but unstable

2.  Uncontrollable and unstable

3.  Controllable and stable

4.   Uncontrollable and stable

4

Uncontrollable and unstable

Explanation :
No Explanation available for this question

# For the system =X+u; y[4 0]X with u as unit impulse and with zero intial state output, y, becomes

1.  2e2t

2.  4e2t

3.  2e2t

4.  4e4t

4

4e2t

Explanation :
No Explanation available for this question

# The Laplace transform of the waveform shown in the figure is What is the value of D

1.  -0.5

2.  -1.5

3.  0.5

4.  s2.0

4

-0.5

Explanation :
No Explanation available for this question

# consider a system shown in the given figure. If the system is disturbed so that C(0)=1, then c(t) for a unit step input will be

1.  1+t

2.  1-t

3.  1+2t

4.  1-2t

4

1+2t

Explanation :
No Explanation available for this question

1.  60%

2.  40%

3.  20%

4.  10%

4