A technician determines that an air-conditioning system holding 50 lb of refrigerant lost one lb of refrigerant in a month. Does the EPA require the leak to be repaired?
A) No, because 1 lb is not 35 percent of 50
B) Yes, because leaking 1 lb in a month is a leak rate of 24 percent per year
C) No, because systems that only hold 50 lb are exempt
D) No, because 1 lb is not 15 percent of 50
B
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Most of the wheat produced is used for _____ food
a. human c. pet b. animal d. surplus
A 20 MW coal-fired power plant has an efficiency of 40%. Estimate the annual consumption of coal burned in this plant. Assume a heating value of approximately 7.5 MJ/kg (megajoules per kilogram) for coal.
What will be an ideal response?
Following the conclusion of the Civil War,
A. Americans had less free time. B. America developed a universal disapproval and dislike of cruel and violent sports like boxing. C. Americans became less involved in physical sports and games. D. Americans increasinglyshared a common and standardized popular culture. E. minstrel shows lost their popularity in the South.
Biotic diseases are often caused by nutrient deficiencies
Indicate whether the statement is true or false