How does an energy recovery wheel improve system efficiency?
A) by moving some of the system refrigerant with a turbulator
B) by reducing the condenser head pressure
C) by transferring heat between the ventilation air and the exhaust air
D) by keeping the evaporator clean
C
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The unit of measurement for flux in a magnetic circuit is called the ____.
A. resistance B. maxwell C. gilbert D. reluctance
Explain why applying the correct mechanical pressures called out in fuel cell installations and maintenance is critical.
What will be an ideal response?
The world demand for petroleum will continue to increase
Indicate whether the statement is true or false
Senator Joseph McCarthy first rose to national prominence by
A. revealing that communist spies were passing atomic secrets to the Soviet Union. B. charging that there was extensive communist influence in Hollywood and the media. C. asserting that General George Marshall was part of a vast communist conspiracy within the U.S. Army. D. mobilizing Republicans to demand a stronger anticommunist foreign policy in East Asia. E. charging that dozens of known communists were working within the U.S. State Department.