Question

for the measurement of flow the cheapest device is
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Answer 1

Answer:

Orificemeter

Explanation: Orificemeter is the cheapest available device for measuring flow/discharge rate. 2. The principle of Orificemeter is same as that of Venturimeter.

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Answer 2

Answer:

The orifice meter is the most inexpensive instrument for measuring flow/discharge rate.  The principle of an orifice meter is the same as the principle of a venturi meter.

Explanation:

An orifice meter is a device that measures the flow rate of a gas or fluid. It is made up of three parts: an orifice plate, an orifice plate housing, and a meter tube.

It is generally built of carbon steel, with the following essential components:

• The inlet section is a linear segment that extends from the device and serves as the end connection for the fluid flowing within.
• The outlet portion, like the intake section, is a linear segment where the pressure of the gas or fluid expelled is calculated.
• Orifice Plate - located between the outlet and inlet segments and utilized to provide a pressure drop that allows the flow rate to be measured.
• Flow Conditioner - a device that is positioned in the metre tube's intake portion and is used to improve linear flow.

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