A bourbon tube is best described as which shape?

A bourbon tube is best described as which shape?

• A. Thermocouple
• B. Bellows sensor
• C. Float type
• D. Bourbon tube

Answer: (D)

A Bourdon tube is defined by its curved, hollow metal tube geometry. When internal pressure rises, the curved tube tends to straighten, and that movement is converted into a readable motion for a gauge. So, describing it as a curved tube (often shown in a C-shape or spiral) best captures its shape and how it senses pressure. The other devices are different sensing mechanisms—thermocouples for temperature, bellows sensors for expansion/contraction, and float types for level—so they don’t describe the Bourdon tube’s characteristic curved form.

A Bourdon tube is defined by its curved, hollow metal tube geometry. When internal pressure rises, the curved tube tends to straighten, and that movement is converted into a readable motion for a gauge. So, describing it as a curved tube (often shown in a C-shape or spiral) best captures its shape and how it senses pressure. The other devices are different sensing mechanisms—thermocouples for temperature, bellows sensors for expansion/contraction, and float types for level—so they don’t describe the Bourdon tube’s characteristic curved form.