RETA CARO TEST BANK ALL CHAPTERS 1 9 EXAM SCRIPT COMPREHENSIVE QUESTIONS AND CORRECT ANSWERS GUARANTEED TO PASS

RETA CARO TEST BANK ALL CHAPTERS 1 9
EXAM SCRIPT COMPREHENSIVE
QUESTIONS AND CORRECT ANSWERS
GUARANTEED TO PASS

⩥ What is the primary purpose of a refrigeration system ?
Answer: achieve and maintain a temperature


⩥ What is a hazard of trapping liquid ?
Answer: A possible release


⩥ How much can the pressure of trapped liquid increase per degree
Fahrenheit of temperature increase
Answer: 100 to 150 psi


⩥ Mechanical refrigeration is a series of steps that
Answer: moves heat energy from a space or object to an area where it
can do no harm


⩥ How does the refrigeration compressor maintain the temperature in
the system evaporators ?

, Answer: Drawing out vaporized refrigerant at a rate to maintain the
desired evaporating pressure


⩥ Which natural refrigerant is considered to be non- flammable
Answer: Carbon Dioxide


⩥ Heat energy always flows
Answer: from an object at a higher temperature to an object at a lower
temperature


⩥ 32 psia equals
Answer: 17.3 psig


⩥ 0 ° F is equal to
Answer: -18 ° C


⩥ Why does the refrigerant in the condenser change state from vapor to
liquid
Answer: The refrigerant loses heat energy to the surrounding
environment


⩥ If a liquid is below its saturation temperature what is its condition ?
Answer: Subcooled