A device that prevents freezing by draining water after the valve is closed is the _____.
a. temperature and pressure relief valve
b. relief valve
c. wall hydrant
d. frostproof connector
c. wall hydrant
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What is a datum?
What will be an ideal response?
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Our study of Thermodynamics did not include how energy is:
A) Used B) Transferred C) Stored D) Transformed
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Which new technology encouraged European artists to shift away from realism in favor of impressionism?
a. cinema b. photography c. newspapers d. telephones
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What is the normal frequency of AC power in the United States?
A) 90 cycles per second B) 60 cycles per second C) 25 cycles per second D) 50 cycles per second
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