1) If the value of error increases, the changing speed of controller output __________.
a. increases
b. decreases
c. remains constant
d. cannot say
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Answer
Explanation
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ANSWER: remains constant
Explanation:
No explanation is available for this question!
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2) Shifting of set point and adjusting its new value by the controller, when the value of disturbance increases, is called as_______.
a. set-shift
b. offset
c. stabilization
d. none of the above
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Answer
Explanation
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ANSWER: offset
Explanation:
No explanation is available for this question!
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3) The range of control of controller __________ due to presence of offset.
a. increases
b. decreases
c. remains constant
d. cannot say
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Answer
Explanation
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ANSWER: decreases
Explanation:
No explanation is available for this question!
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4) Which of the following is/are the drawback/s of proportional control?
1. Proportional control system is complicated and costly.
2. Proportional control system is not suitable for pressure temperature and flow control problems
3. If there are sudden disturbance, the proportional control system takes time to stabilize.
a. (1)
b. (2)
c. (3)
d. (1), (2) and (3)
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Answer
Explanation
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ANSWER: (3)
Explanation:
No explanation is available for this question!
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5) Consider the following graph of Controller Characteristics of On-Off Control. The region shown between curve A and curve B is called as________.
a. dead zone
b. hysteresis
c. both a. and b.
d. none of the above
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Answer
Explanation
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ANSWER: both a. and b.
Explanation:
No explanation is available for this question!
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6) Consider the following graph of error (e) vs controller output (m). The curve B corresponding to the value of error e2 is the curve followed by controller characteristics when value of error __________.
a. is decreasing
b. is increasing
c. remains constant
d. is unpredictable
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Answer
Explanation
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ANSWER: is increasing
Explanation:
No explanation is available for this question!
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7) The controller characteristics for on-off controller follow _________.
a. only one curve
b. two curves
c. four curves
d. unpredictable
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Answer
Explanation
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ANSWER: two curves
Explanation:
No explanation is available for this question!
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8) Consider the below diagram of Two Position Control. What would be the value of error, when the controller output takes a fixed value corresponding to the 'ON' position of final control element?
a. zero
b. less than zero
c. more than zero
d. unpredictable
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Answer
Explanation
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ANSWER: more than zero
Explanation:
No explanation is available for this question!
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9) On-off Control is also called as ________.
a. one position control
b. two position control
c. four position control
d. half position control
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Answer
Explanation
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ANSWER: two position control
Explanation:
No explanation is available for this question!
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10) Which of the following is/are the Continuous Control Mode/s used in control systems?
a. On-Off Control
b. Integral Control
c. Proportional Control
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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