A device used for measuring the rate of a flow of a fluid flowing through a pipe is known as

Explanation:

• A venturimeter is a device used for measuring the rate of a flow of a fluid flowing through a pipe. It is made up of a U-shaped tube filled partially with mercury. The venturi meter is connected to a pipe at two points as shown in the figure:

• The basic principle on which a venture meter works is that by reducing the cross-sectional area of the flow passage, a pressure difference is created and the measurement of the pressure difference enables the determination of the discharge through the pipe

Orifice Meter:

• An Orifice Meter is a device used for measuring the rate of flow of a fluid through a pipe. It is a cheaper device as compared to a venturi meter.

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NOTE:

Both the venturi meter and orifice meter are used to find out the discharge, so both options are correct, and we have marked the correct answer according to the official key of JKSSB

Important PointsPitot-tube is a device used for measuring the velocity of flow at any point in a pipe or a channel.