How can you lower the temperature at which evaporation takes place?
A) Decrease the pressure on the high side of the pump.
B) Reduce the pressure on the low side of the system.
C) Add more refrigerant into the pump.
D) Raise the pressure on the low side of the pump.
B
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During the 17th century, indentured servitude solved the labor problem in many English colonies for all of the following reasons EXCEPT that
A. the Indian population proved to be an unreliable work force because they died quickly after contact with whites. B. African slaves cost too much money. C. in some areas, families formed too slowly. D. Spain had stopped sending slaves to its New World colonies. E. families procreated too slowly.
The United States imports much of its petroleum
Indicate whether the statement is true or false
Which of the following is one of the basic characteristics of DRAMs?
A) DRAMs have a broader "dynamic" storage range than other types of memories. B) DRAMs must have a constantly changing input. C) DRAMs must be periodically refreshed in order to retain data. D) DRAMs are simpler devices than other type memories.
There is a direct relationship between temperature and pressure in an automotive air conditioning system.
Answer the following statement true (T) or false (F)