Question

Differential manometer is used to measure

• A. Very low pressure
• B. Pressure in pipes, channels etc
• C. Atmospheric pressure
• D. Difference of pressure between two points

Answer 1

Answer:

D. Difference of pressure between two points

Differential manometers measure the pressure difference between two points. They are commonly used in pipes or channels. The U-tube differential manometer is the most common type, consisting of a U-tube filled with heavy liquid. The equation for pressure difference is ΔP = pgh, where p is the density of the liquid, g is acceleration due to gravity, and h is the height difference of the liquid in the U-tube.