Heat flows from the product into the evaporator because:
A) The evaporator is at a lower pressure than the product.
B) The refrigerant in the evaporator has fewer BTU/lb than the product.
C) The evaporator is at a lower temperature than the product.
D) The refrigerant in the evaporator has a lower specific heat than the product.
C
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In a water-cooled condensing unit/cooling tower combination, the temperature difference of the water through the condenser will be approximately ____.
A. 10°F B. 20°F C. 30°F D. 40°F
This symbol in a wiring diagram indicates ________
A) A fuse B) A female terminal C) A male terminal D) None of these
With regard to a parallel LC circuit, which statement is false?
A) The inductor and capacitor voltages are equal. B) The total circuit current is lower than the highest valued branch current. C) The total circuit current is equal to the sum of the individual branch currents. D) The value of XP is greater than one (or both) of the branch reactance values.
A constant current source
A) delivers a load current that remains constant when the load resistance changes B) delivers a load current that remains constant when input voltage decreases C) delivers a load current that remains proportional to load resistance D) all the above