
Unit 22 Refrigeration System Flashcard
Flashcard
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Science
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University
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Practice Problem
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Hard
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1.
FLASHCARD QUESTION
Front
What is the function of a water regulating valve in a refrigeration system?
Back
A water regulating valve modulates the flow of water through the condenser to maintain optimal head pressure.
2.
FLASHCARD QUESTION
Front
How is a shell-and-tube condenser cleaned?
Back
A shell-and-tube condenser is cleaned with a brush after removing the end caps.
3.
FLASHCARD QUESTION
Front
What are the main functions of a condenser in a refrigeration system?
Back
The condenser desuperheats the vapor from the compressor, condenses the vapor, and subcools the liquid refrigerant before it leaves the condenser.
4.
FLASHCARD QUESTION
Front
True or False: A water regulating valve helps to maintain a system's head pressure by modulating the flow of refrigerant through the condenser.
Back
False. It modulates the flow of water, not refrigerant.
5.
FLASHCARD QUESTION
Front
What does the refrigerant do in a condenser?
Back
The refrigerant rejects heat in the condenser.
6.
FLASHCARD QUESTION
Front
What is head pressure in a refrigeration system?
Back
Head pressure is the pressure in the condenser that is necessary to condense the refrigerant from vapor to liquid.
7.
FLASHCARD QUESTION
Front
What is the purpose of a fan in a water-cooled condenser?
Back
The fan helps to dissipate heat from the condenser by increasing airflow.
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