Electronics and Communication Engineering - Automatic Control Systems
Exercise : Automatic Control Systems - Section 2
- Automatic Control Systems - Section 1
- Automatic Control Systems - Section 2
- Automatic Control Systems - Section 3
- Automatic Control Systems - Section 4
- Automatic Control Systems - Section 5
- Automatic Control Systems - Section 6
- Automatic Control Systems - Section 7
- Automatic Control Systems - Section 8
- Automatic Control Systems - Section 9
- Automatic Control Systems - Section 10
1.
The first column of a Routh array is
How many roots of the corresponding characteristic equation are in left half s-plane?
How many roots of the corresponding characteristic equation are in left half s-plane?
Answer: Option
Explanation:
Total number of roots is 5. Since two sign changes in first column, two roots are in right half plane.
Hence 3 roots in left half plane.
2.
For the given figure, time constant RC = t. Then
t2s2 + 2ts + 1
ts2 + 1
Answer: Option
Explanation:
.
3.
The entries in the first column of Routh array of a fourth order are 5, 2, - 0.1, 2, 1. The number of poles in the right half plane are
Answer: Option
Explanation:
Two sign changes and hence two poles in right half plane.
4.
In Bode diagram (log magnitude plot) the factor (jω)n in the transfer function gives a line having slope
20 dB/decade
20n dB/decade
-20n dB/decade
Answer: Option
Explanation:
For (jω)n term the slope is (20 n) dB/decade.
5.
The magnitude of transport lag factor is always zero.
Answer: Option
Explanation:
It is not always zero.
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