When the heat load on the evaporator increases, the automatic expansion valve:
A) Opens to feed more refrigerant.
B) Sends a signal to the electronic control board indicating the change.
C) Closes to keep the pressure from increasing.
D) Does nothing because AEVs are not modulating devices.
C
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You bought 480 early-weaned pigs weighing 12 pounds for $36.50 each. You had a 3.1 percent loss. These pigs were finished 170 days later weighing 253 pounds.
a. What did the pigs cost? b. How many pigs did you have at the end of 170 days? c. What was the actual cost per pig?
Which of the following statements is false?
A. The ideal solution molar enthalpy is equal to the ideal gas molar enthalpy if evaluated at the same temperature and pressure. B. The partial molar volume of component i in the ideal gas state at the system temperature and pressure is not equal to the pure component molar volume evaluated at the system temperature and the partial pressure of component i. C. The partial molar internal energy of component i in the ideal gas state evaluated at the system temperature is equal to the pure component molar internal energy of component i in the ideal gas state evaluated at the system temperature. D. All of the above. E. None of the above.
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What will be an ideal response?
What colors of light most actively stimulate photosynthesis?
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