

Understanding Automatic Expansion Valves
Interactive Video
•
Physics, Science, Other
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What principle do Automatic Expansion Valves (AEVs) share with fixed orifice devices?
They both use a variable hole size.
They both require manual adjustment.
They both control refrigerant flow through a fixed hole.
They both use electronic sensors.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the hole size in AEVs change with cooling demand?
It increases with more demand.
It remains constant regardless of demand.
It increases with less demand.
It decreases with more demand.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What components control the hole size in AEVs?
A piston and a cylinder
A valve and a lever
A diaphragm and a spring
A motor and a sensor
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the diaphragm in AEVs?
To act as a fixed barrier
To cover the entire opening
To partially cover the opening
To break easily under pressure
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the spring in an AEV is compressed?
The diaphragm opens the hole wider.
The diaphragm closes part of the hole.
The refrigerant flow increases.
The refrigerant pressure decreases.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the combination of diaphragm and spring affect refrigerant flow?
It automatically adjusts flow based on demand.
It allows for manual control of flow.
It keeps the flow constant.
It stops the flow completely.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the orifice opening size in AEVs control?
The pressure of the refrigerant
The weight of the refrigerant
The temperature of the refrigerant
The color of the refrigerant
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