Which of these wrenches is recommended for loosening air conditioning refrigerant lines?
A) Combination wrench B) Flare-nut wrench
C) Open end wrench D) Box end wrench
B
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A compound has TC = 500 K, PC = 5 MPa and ? = 0.4. The compound is known to have Psat = 2 kPa and ?Hvap = 30 kJ/mol at T = 250 K. No other data is available. Which of the following is the most accurate way to estimate the vapor pressure of this compound at 400 K?
A. The Clausius-Clapeyron equation B. The shortcut equation C. The Antoine equation D. The van der Waals equation E. None of the above is even possible with the given information.
List the three factors that determine the length of time fruits can be stored
What will be an ideal response?
The company you work for is considering a new product line projected to have the net cash flows (NCF) shown. The values are in future dollars, which have been inflated by 5% per year. Because the plant manager is unsure how the present worth is calculated, he asked you to do it in two ways over the 4-year planning horizon: (1) using the company’s market rate of 20% per year, and (2) converting all of the estimates into CV dollars and using the company’s real rate. You said both ways will provide the same answer, but he asked you to show him the calculations. What is the present worth by method (1) and method (2)? Solve by hand and spreadsheet.
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From the compressor output, the compressed air is fed into a storage tank, called the ____.
A. dryer B. lubricator C. receiver D. regulator