The Bourdon tube gauge shape is?

The Bourdon tube gauge shape is?

• A. S shaped
• B. U shaped
• C. C shaped
• D. T shaped

Answer: (C)

The key idea is how a Bourdon tube converts pressure into motion by its curved shape. A Bourdon tube is formed into a circular arc, commonly described as C-shaped. When pressure inside the tube rises, the curved tube tends to straighten, and this small change in curvature is transferred through a linkage to move the gauge’s needle. The C-shaped form provides a straightforward, predictable deflection that can be calibrated into a readable pressure value. A U-shaped or S-shaped tube would complicate the motion and calibration, producing nonlinear or less direct movement, so the standard configuration is the C-shaped tube.

The key idea is how a Bourdon tube converts pressure into motion by its curved shape. A Bourdon tube is formed into a circular arc, commonly described as C-shaped. When pressure inside the tube rises, the curved tube tends to straighten, and this small change in curvature is transferred through a linkage to move the gauge’s needle. The C-shaped form provides a straightforward, predictable deflection that can be calibrated into a readable pressure value. A U-shaped or S-shaped tube would complicate the motion and calibration, producing nonlinear or less direct movement, so the standard configuration is the C-shaped tube.