Answer :
Final answer:
A Capillary tube is the metering device that consists of a length of seamless tubing with a small and precisely formed inside diameter. It is used in refrigeration and air conditioning systems to regulate the flow of a refrigerant.
Explanation:
The metering device that consists of a length of seamless tubing with a small and precisely formed inside diameter is called a Capillary tube.
A capillary tube is used in various applications, including refrigeration and air conditioning systems, to control the flow of a refrigerant. It works by using the surface tension and pressure difference between the inside and outside of the tube to regulate the flow rate.
For example, in a refrigeration system, the capillary tube helps to create a pressure drop, which causes the refrigerant to expand and cool down as it enters the evaporator coil. This allows the refrigerant to absorb heat from the surrounding environment and provide cooling.
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