A container of recovered R134a refrigerant has a pressure of 91 psi at 80 degrees F. This indicates ________.
A) A normal condition
B) That the refrigerant is contaminated
C) That air is in the container
D) That the container is overheated
A) A normal condition
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Before a program can be developed from a ladder diagram, it is first necessary to determine the number of ____.
A. differential amplifiers B. protection schemes C. input and output devices D. CPUs
You have been assigned to conduct a site assessment for a lake in Montana. There is a new biofuels plant operating and discharging into the stream that feeds the lake and agriculture around the lake for cattle and switchgrass. You observed high levels of algae floating on the surface of the lake, and the water was highly turbid. You also measured the DO at 1 meter to be 5 mg/L and at a depth of 20 meters the DO was 1.0 mg/L.
a. How would you describe the productivity level of the lake? Explain your reasoning. b. Similar lakes have had threatened Yellowstone Cutthroat Trout populations. But this lake does not. What changes would you suggest be made in managing the lake’s water quality prior to the reintroduction of trout to the lake? What will be an ideal response?
Common anode displays are energized by connecting the appropriate cathode lead to a ____ voltage.
a. negative b. more negative c. more positive d. positive
Answer the following statement(s) true (T) or false (F)
1.One of the main reasons UTP cable is typically installed in homes is because of its lower cost per foot compared to STP cable. 2.Section 800.156 requires that at least one communications outlet be installed in each new home and that proper wiring be brought to the telephone company’s demarcation point. 3.If Category 6 cables are used, there cannot be any untwisted length away from the termination points. 4.If cable ties are used to support communication circuit wiring or coaxial cables in a plenum, they do not need to be listed specifically for use in plenums.