When two or more ingredients are blended in a mixing operation, the flowrate of all but one are controlled by a ratio control system.
Answer the following statement true (T) or false (F)
True
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Which floor coverings are considered resilient coverings and what are the advantages of resilient coverings?
What will be an ideal response?
Organic fungicides are used both as protectants and as eradicants
Indicate whether the statement is true or false.
The vacuum level on a system being evacuated pulls down to 2,000 microns, but goes no lower even as the vacuum pump continues to run. This indicates:
A) That the system is charged with the wrong type of refrigerant. B) The presence of water in the system. C) That the vacuum is complete. D) That the refrigeration oil is incompatible with the refrigerant in the system.
When setting up a saltwater tank, the cost of a protein skimmer is:
A. $25 B. $100 C. $150 D. $560