What is a capillary tube and what is it used for?
A. A tube used to protect the gauge from damage due to overpressure
B. A tube used to regulate the flow of fluid to the gauge
C. A tube used to reduce the effects of temperature changes on the gauge reading
D. A tube used to protect the gauge from contamination by foreign substances
Answer:C
What is a capillary tube and what is it used for?
A. A tube used to protect the gauge from damage due to overpressure B. A tube used to regulate the flow of fluid to the gauge C. A tube used to reduce the effects of temperature changes on the gauge reading D. A tube used to protect the gauge from contamination by foreign substances
Explanation: A capillary tube is a long, thin tube that is installed between the process being measured and the gauge, which reduces the effects of temperature changes on the gauge reading. The tube is filled with a fluid that expands and contracts with changes in temperature, which helps to compensate for the effects of temperature on the gauge.