Free Printable Quiz 3 KMK30103

1.

1. Given the block diagram of a feedback control system below, which label is incorrect?

a)

I

b)

II

c)

III

d)

IV

2.

2. Based on the following block diagram algebra, and assuming only set-point changes are considered, the closed-loop transfer function simplifies to:

$Y=\frac{KmGcGvGp}{1+G_{OL}}Ysp+\frac{Gd}{1+G_{OL}}D$

a)

$\frac{Y}{Ysp}=\frac{Gd}{1+G_{OL}}D$

b)

$\frac{Y}{D}=\frac{KmGcGvGp}{1+G_{OL}}Ysp$

c)

$\frac{Y}{Ysp}=\frac{KmGcGvGp}{1+G_{OL}}$

d)

$\frac{Y}{Ysp}=\frac{KmGcGvGd}{1+G_{OL}}$

3.

3. Determine the roots of the following characteristic equation:
$s^2+5s+6=0$

a)

-2

b)

-3

c)

3

d)

2

4.

Which of the following roots of the characteristic equation indicate a stable feedback control system?

a)

b)

c)

d)

5.

5. Which of the following statement is correct?

a)

$G_{OL}=GcGvGdGm$

b)

The feedback control system is stable if all roots are negative or have positive real parts.

c)

For Routh stability criterion, all the coefficients in the characteristic equation must be positive.

d)

$1+G_{OL}=0$ is known as open-loop transfer function.

6.

6.Which of the following is not a performance criterion for a closed-loop system?

a)

Stable.

b)

Rapid and smooth response.

c)

Offset is maximized.

d)

Excessive control is avoided.

7.

7. Which of the following options gives the best response?

a)

b)

c)

d)

Quiz 3 KMK30103

Total questions: 7

Worksheet time: 10mins

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