RETA CARO Chapter 1 Exam Questions With Verified Solutions
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Reta
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Reta
RETA CARO Chapter 1 Exam Questions With Verified Solutions
Purpose of a Refrigeration System
Achieve or maintain proper temperatures in a refrigeration process used for cooling/freezing applications
Ton of Refrigeration
Rate BTUs transfer per unit time
288,000 BTUs/24 Hours
12,000 BTUs/12...
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RETA CARO Chapter 1 Exam Questions With
Verified Solutions
Purpose of a Refrigeration System
Achieve or maintain proper temperatures in a refrigeration process used for cooling/freezing
applications
Ton of Refrigeration
Rate BTUs transfer per unit time
288,000 BTUs/24 Hours
12,000 BTUs/12 Hours
200 BTUs/1 Minute
rate of refrigeration or cooling
Pressure
Force per unit area.
PSIA
Absolute pressure; measures pressure from zero pressure
PSIG
Gauge pressure, uses atmospheric pressure as the zero point (14.7psia); 0PSIG = 14.7PSIA
Temperature
Measure of the intensity of the heat energy in an object or space
Fahrenheit to Celsius
F=1.8(C)+32
Heat
A form of energy measured in BTUs
BTU
British Thermal Unit; the amount of heat required to change the temperature of one pound of pure
liquid water, one degree Fahrenheit
Heat Quantity
Quantity of heat, measured in BTUs, depends on the mass of an object
Sensible Heat
heat energy that causes a change in temperature, can be sensed on a thermometer, does not change
state
Latent Heat
heat energy that causes a change in state, cannot be measured with a thermometer
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