In a wastewater cooled system, the difference between the condensing temperature of the refrigerant and the leaving water temperature is approximately ____.
A. 10°F
B. 20°F
C. 30°F
D. 40°F
Answer: A
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which statement is correct?
Gasoline is injected into the cylinder of a car’s engine and compressed on the upstroke of the piston. The compression is well modeled as adiabatic. At the moment when the cylinder’s volume is at its lowest, but before the sparkplug ignites the mixture, A. The ideal gas law applies, but will not apply after the ignition because it does not account for reactions such as combustion. B. The temperature of the gas is higher than it was before the compression started. C. You cannot plausibly write an energy balance using“the gas inside the cylinder” as a system, because of the very complex physical shape of the spark plug. D. If a cubic equation of state describing the fluid at this point yields only one real number solution, this is an indication that the pressure of the gas is above the critical pressure. E. None of these are correct.
Woodrow Wilson's early efforts to conduct a strongly anti-imperialist U. S. foreign policy were first undermined when he
A. dispatched U.S. military forces to protect American interests in China. B. told the Filipinos that they could not obtain their independence for at least forty years. C. sent American marines to Haiti and the Dominican Republic. D. sent the U.S. Navy to seize the Virgin Islands from Denmark. E. began constructing a massive U.S. Navy base at Pearl Harbor, Hawaii.
Chamfers remove sharp edges, add to the appearance of the part, and:
A. Provide handling safety. B. Reduce manufacturing costs. C. Make assembly more difficult.
An inverted output AND gate is called a(n) ________ gate
Fill in the blank(s) with correct word