Which of the following is a common flow-sensing element that creates a difference in pressure that can be measured by a D/P cell?
A) Rotating piston
B) Oval gear
C) Orifice plates
D) Rotating vane meters

Question

Quizplus · Accepted Answer

A) Incorrect. Some common instruments used to measure flow by positive displacement are the rotating piston, nutating disk, oval gear, and rotating vane meters.
B) Incorrect. Some common instruments used to measure flow by positive displacement are the rotating piston, nutating disk, oval gear, and rotating vane meters.
C) Correct. Common flow-sensing elements that create a difference in pressure that can be measured by a D/P cell include pitot tubes (Figure 27.4), orifice plates, flow nozzles, flow tubes, and Venturi tubes.
D) Incorrect. Some common instruments used to measure flow by positive displacement are the rotating piston, nutating disk, oval gear, and rotating vane meters.

Which of the Following Is a Common Flow-Sensing Element That