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13. A temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14 What in th ontmell

13. A temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14 What in th ontmell

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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FIGURE 5.49 Problem 10. 6. Which one of the outputs could be given by a derivative controller? 7. Which one of the outputs could be given by an integral controller? 8. Which one of the outputs could be given by a proportional plus integral controller? 9. Decide whether each of these statements is True (T) or False (F). 10 min with a proportional gain setting of 2. The optimum settings, using the criteria of Ziegler and Nichols, mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to be With a PID process control system tested at start-up using the ultimate cycle method with the derivative will be: -1 i. An integral constant of 0.2 min ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 10. Decide whether each of these statements is True (T) or False (F). by 10%, the response graph obtained was as shown in Figure 5.49. The optimum settings, using the criteria of With a PI process control system tested by the process reaction method and the controller output changed Ziegler and Nichols, will be: i. Proportional gain constant 7.2. ii. Integral constant 0.15 min-¹. A. (i) T (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 11. Decide whether each of these statements is True (T) or False (F). With a PI process control system tested at start-up using the ultimate cycle method with the derivative mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to be 20 min with a proportional gain setting of 1.2. The optimum settings, using the criteria of Ziegler and Nichols, will be: i. An integral constant of 0.06 min ¹. ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 12. A control system is designed to control temperatures between -10°C and +30°C. What is (a) the range, (b) the span? 13. A temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14. What is the controller gain of a temperature controller with a 80% PB if its input range is 40-90° and its output is 4-20 mA? INSTRUMENTATION AND CONTROL SYSTEMS FIGURE 15. 16. 17 13
Transcribed Image Text:FIGURE 5.49 Problem 10. 6. Which one of the outputs could be given by a derivative controller? 7. Which one of the outputs could be given by an integral controller? 8. Which one of the outputs could be given by a proportional plus integral controller? 9. Decide whether each of these statements is True (T) or False (F). 10 min with a proportional gain setting of 2. The optimum settings, using the criteria of Ziegler and Nichols, mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to be With a PID process control system tested at start-up using the ultimate cycle method with the derivative will be: -1 i. An integral constant of 0.2 min ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 10. Decide whether each of these statements is True (T) or False (F). by 10%, the response graph obtained was as shown in Figure 5.49. The optimum settings, using the criteria of With a PI process control system tested by the process reaction method and the controller output changed Ziegler and Nichols, will be: i. Proportional gain constant 7.2. ii. Integral constant 0.15 min-¹. A. (i) T (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 11. Decide whether each of these statements is True (T) or False (F). With a PI process control system tested at start-up using the ultimate cycle method with the derivative mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to be 20 min with a proportional gain setting of 1.2. The optimum settings, using the criteria of Ziegler and Nichols, will be: i. An integral constant of 0.06 min ¹. ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 12. A control system is designed to control temperatures between -10°C and +30°C. What is (a) the range, (b) the span? 13. A temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14. What is the controller gain of a temperature controller with a 80% PB if its input range is 40-90° and its output is 4-20 mA? INSTRUMENTATION AND CONTROL SYSTEMS FIGURE 15. 16. 17 13
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