

Hydraulics - Engineering
Q1: To measure very low pressure, we useA
barometers
B
piezometers
C
manometers
D
differential manometers.
ANS:C - manometers Manometers are devices used to measure the pressure of a fluid by balancing it against a column of another fluid, typically a liquid such as mercury or water. They work on the principle of hydrostatic equilibrium, where the pressure exerted by the fluid being measured is balanced by the weight of the column of the reference fluid. There are several types of manometers, including:
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