A manometer is an instrument used for measuring?

A. Relative density of liquid
B. Pressure in liquids and gases
C. Humidity
D. Atmospheric pressure

Correct Answer:

Option B – Pressure in liquids and gases

Explanation

a manometer is used to measure pressure in liquids and gases. Manometer gauges measure the pressure of gases and vapors from atmospheric to about 1 Pa by balancing the force exerted by the gas or vapor against the weight of a column of liquid, usually mercury, water, or oil.