Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

The system matrix of continuous time system described in state variable form is

The systems is stable for all values of x and y satisfying
A:
x < 1/2, y < 1/2
B:
x > 1/2, y > 0
C:
x < 0, y < 0
D:
x < 0, y < 1/2
Answer: C
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In the field controlled motor the entire damping comes from
A:
armature resistance
B:
back emf
C:
motor friction and load
D:
field resistance
Answer: C
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The distance of poles from origin depends on
A:
undamped natural frequency
B:
damping ratio
C:
both (a) and (b)
D:
neither (a) nor (b)
Answer: A
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The polar plot of the given figure can be for G(jω) =
A:
B:
C:
D:
Answer: B
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If zeros at infinity are included in the count, the number of zeros of G(s) H(s) is
A:
equal to number of poles
B:
one more than the number of poles
C:
one less than the number of poles
D:
none of the above
Answer: A
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