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
Answer: A
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Which of the following statements is false?
A. On a xy diagram, if the y (vapor-phase composition) crosses the y = x line, the system will exhibit an azeotrope. B. The larger the relative volatility for a binary mixture, the easier it will be (in general) to separate those two components through distillation. C. For a system that obeys Raoult’s Law, the K-factor for a component is simply the vapor-pressure of that component divided by the system pressure. D. The K-factors for the components in a mixture, by definition, cannot all be < 1. E. At an azeotrope, the relative volatility for a system is, by definition, equal to 1.
The preferred method to clear diagnostic trouble codes (DTCs) is to ________
A) Remove the computer (PCM) Power feed fuse B) Cycle the ignition key on and off 40 times C) Use a scan tool D) Disconnect the negative battery cable for 10 seconds
A vapor-charged thermal bulb assembly responds faster than a liquid-charged thermal bulb assembly.
Answer the following statement true (T) or false (F)
A technician measures approximately 0.7V across a diode in a 12V electric circuit. This indicates the diode is reverse biased.
Answer the following statement true (T) or false (F)