How does a pressure gauge measure differential pressure?
A. It measures the difference between the pressure being measured and a reference pressure
B. It measures the pressure being measured with respect to a perfect vacuum
C. It measures the difference in pressure between two points in a system
D. It cannot measure differential pressure
Answer:C
How does a pressure gauge measure differential pressure?
A. It measures the difference between the pressure being measured and a reference pressure B. It measures the pressure being measured with respect to a perfect vacuum C. It measures the difference in pressure between two points in a system D. It cannot measure differential pressure
Explanation: Differential pressure is the difference in pressure between two points in a fluid system. A pressure gauge that measures differential pressure has two pressure connections, one for each point being measured, and the gauge mechanism measures the difference between the two pressures and indicates it on the gauge face.