Question

A C-type Bourdon tube is used to measure pressure in a pipe and it indicates a pressure of $10kPa$. If atmospheric pressure is $101.3kPa$. Then the absolute pressure in the pipe (in kPa) is

• A. $10$
• B. $91.3$
• C. $101.3$
• D. $111.3$

Answer 1

The correct option is D $111.3$

Since C-type Bourdon tube measure gauge pressure,

$\therefore P_g=10kPa$

$P_{atm}=101.3KPa\left(given\right)$

$P_{absolute}=P_g+P_{atm}$

$=10+101.3=111.3kPa$