Hitler's advance in the European theater of war crested in late 1942 at the Battle of ____, after which his fortunes gradually declined.
A. the Bulge
B. Stalingrad
C. Monte Cassino
D. Britain
E. El Alamein
Answer: B
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What cooling towers use temperature differences inside and outside the stack to facilitate air movement?
A) Induced draft tower B) Forced draft tower C) Closed circuit cooling tower D) Natural draft tower
After repairing a system that has had an electrical motor failure (compressor burnout), it is good field practice to re-use the recovered refrigerant in that system.
Answer the following statement true (T) or false (F)
How does heat capacity correlate with outdoor temperature on a balance point graph?
A) As outdoor temperature increases, the balance point decreases. B) As outdoor temperature increases, heat pump capacity decreases. C) As outdoor temperature increases, heat pump capacity increases. D) As outdoor temperature increases, heat pump capacity remains constant.
Which of the following types of fuel pump can be used as the high pressure pump in a typical CR systems?
A. Vane pump. B. Swash plate pump. C. Crescent pump. D. Inline piston pumps.