Stepper motors find applications in X-Y plotters numerically controlled machinin

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

Correct Answer

all of the above

Explanation

Stepper motors are used in all these applications.

Automatic Control Systems problems

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2. A negative feedback system has . The closed loop system is stable for
Options
A. K > 20
B. 15 < K < 19
C. 8 ? K ? 14
D. K < 6

4. Assertion (A): Potentiometers can not be used as error detectors in position control systems.
Reason (R): The resolution of a potentiometer places an upper limit on its accuracy
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

5. From the noise point of view, bandwidth should
Options
A. be large
B. not be too large
C. should be as large as possible
D. should be infinite

6. 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

8. 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

10. 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)

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