Which of the following pressure sensing...

Question 1 of 270705eccefa5bacbc34ba4d4876b

Which of the following pressure sensing mechanisms in a linear-scaled pneumatic indicator is generally used to sense pneumatic pressure as received from a pneumatic pressure transmitter?

Back

Question 1 of 27070

Which of the following pressure sensing mechanisms in a linear-scaled pneumatic indicator is generally used to sense pneumatic pressure as received from a pneumatic pressure transmitter?

🔍 Key Concepts

• Pneumatic transmitters and indicators – how air pressure signals are sent and displayed on panel instruments • Common pressure-sensing elements – diaphragm, Bourdon tube, bellows, spiral/helical coils and what they’re best suited for • Difference between linear scale indicators (uniform spacing) vs. non‑linear scales (compressed at one end)

💭 Think About

• For each sensing element listed, ask: does it naturally produce a linear deflection with respect to pressure, or is the response more curved/non‑linear? • Think about which element is most commonly found in general industrial pneumatic panel gauges receiving a 3–15 psi signal from a transmitter. • Consider which of these elements is often used when moderate pressures and small strokes are needed for accurate indication, rather than for very high pressures.

✅ Before You Answer

• Confirm which element is most widely used in standard pressure gauges found on machinery and process systems. • Verify which element typically produces a non‑linear movement, requiring a curved or crowded scale, and which produces a more uniform, easy‑to-read scale. • Check which elements are usually chosen for small pressure ranges in control systems (like 3–15 psi) as opposed to very high-pressure service.