A batch process uses a continuous level measurement device.
Answer the following statement true (T) or false (F)
False
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Programmable logic controllers are all programmed the same way.
Answer the following statement true (T) or false (F)
The burners in a water tube boiler are surrounded by which tubes:
a. riser and downcomer b. superheated and desuperheated c. steam generating tubes d. economizer tubes
If the blades on a forward curved centrifugal (evaporator) blower become clogged with dirt, which of the following is likely?
A. The evaporator could freeze. B. The suction pressure would drop. C. The head pressure would rise. D. Both a and b are correct.
Which of the following tasks is NOT implemented, when adding the IIN, ION, IIM and IOM instructions in the development of ladder logic?
A) Interrupt the scan process and input or move a data word immediately. B) Interrupt the scan process and complete all arithmetic expression immediately. C) Interrupt the scan process and move only the masked portion of a data word immediately. D) Move field device data to the input image table without waiting for the scan cycle to reach the image table update point.