Whether a linear system is stable or unstable that it is a property of the syste

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Question
Whether a linear system is stable or unstable that it
Options
A. is a property of the system only
B. depends on the input function only
C. both (a) and (b)
D. either (a) or (b)

Correct Answer

is a property of the system only

Explanation

Stability is a property of the system only.

Automatic Control Systems problems

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2. In an integral controller
Options
A. the output is proportional to input
B. the rate of change of output is proportional to input
C. the output is proportional to rate of change of input
D. none of the above

4. The log magnitude curve for a constant gain K is a
Options
A. horizontal straight line
B. horizontal straight line of magnitude 20 log K decibels
C. an inclined line having slope K
D. an inclined line having slope -K

5. Stepper motors find applications in
Options
A. X-Y plotters
B. numerically controlled machining equipment
C. printers
D. all of the above

6. For very low frequencies, v₀/v_i in the given figure equals
Options
A. 1
B. 0
C. ?
D. 0.5

8. Assertion (A): The steady state response, of a stable, linear, time invariant system, to sinusoidal input depends on initial conditions.
Reason (R): Frequency response, in steady state, is obtained by replacing s in the transfer function by j?
Options
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

9. For the system in the given figure. The transfer function C(s)/R(s) is
Options
A. G₁ + G₂ + 1
B. G₁ G₂ + 1
C. G₁ G₂ + G₂ + 1
D. G₁ G₂ + G₁ + 1

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