A refrigeration system was checked for leaks. The system temperature and surroundings were 75°F when the system was charged with nitrogen to 100 psig. The temperature then dropped to 50°F. What should the pressure be if no nitrogen has escaped?
A) 90 psig B) 94 psig C) 100 psig D) 9 psig
B
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Safety nets made of _____ are stronger, lighter in weight, and more resistance to wear and weather elements than the original safety nets.
A. manilla rope B. chain mail C. synthetic fibers D. natural fibers
Describe the open ditch method of subirrigation
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Before a treaty annexing Hawaii to the United States could be rushed through the U.S. Senate in 1893
A. President Harrison's term expired and the less imperialist Grover Cleveland became President. B. war broke out between the United States and Great Britain. C. the white American sugar rebels decided that Hawaii should remain independent. D. popular opinion in the United States turned against such colonial ventures. E. the pro-annexation forces demanded that Hawaii be admitted to the Union as a state.
What is the volume of a room in cubic feet measuring 21' 6" long x 14' 6" wide x 9' tall?
What will be an ideal response?