When working in the refrigeration and air-conditioning industry, matter is typically encountered in three states:
A) Chemical, plasma, electrical. B) Solid, liquid, vapor.
C) Animal, vegetable, mineral. D) Fahrenheit, Celsius, Kelvin.
B
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The coefficient of performance of the refrigeration cycle when operating as an air-conditioner is nearest:
A 5-ton ideal air-conditioner operates between 120 kPa and 800 kPa. The refrigerant is R134a.
A) 3.6
B) 3.9
C) 4.2
D) 4.6
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Selective herbicides affect almost all plants
Indicate whether the statement is true or false
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A Coriolis flow meter is a __________ type of flow meter.
A. volumetric B. weight C. mass D. velocity
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Word addresses include __________.
A. control file B. timer C. counters D. all of the above
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