Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

Nichols chart consists of M and N locii in log magnitude versus phase diagram.
A:
True
B:
False
C:
D:
Answer: A
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Assertion (A): In the given figure open loop transfer function =

Reason (R): The ratio is called feed forward transfer function.

A:
Both A and R are correct and R is correct explanation of A
B:
Both A and R are correct but R is not correct explanation of A
C:
A is correct but R is wrong
D:
R is correct but A is wrong
Answer: B
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The units of thermal capacitance are
A:
k cal/°C
B:
°C/k cal
C:
°C sec/k cal
D:
none of the above
Answer: A

Heat energy (kcal) is analogous to electric charge and temperature is analogous to voltage.

.

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If the angle of departure of root locus at s = - 1 + j is
A:
zero
B:
90°
C:
-90°
D:
-180°
Answer: D
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A first order element yields almost exact duplication only for constant or slowly varying phenomenon.
A:
True
B:
False
C:
D:
Answer: A
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