Question:
A device which is used for measuring flow of fluid with high accuracy and low pressure loss is:
A device which is used for measuring flow of fluid with high accuracy and low pressure loss is:
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In a standard physics/engineering textbook, the Venturi meter is often cited for "low pressure loss." Always check the specific context of the exam board!
Updated On: Jul 4, 2026
- Venturi meter
- Dull flow tube
- Orifice tube
- Pitot static tube
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The Correct Option is C
Solution and Explanation
Concept:
Flow meters are instruments used to measure the linear, non-linear, mass, or volumetric flow rate of a liquid or a gas.
• Venturi Meter: High accuracy, low pressure loss, but expensive and bulky.
• Orifice Meter: Simple, cheap, but usually has a higher pressure loss.
• Pitot Tube: Used to measure local point velocity rather than total flow.
Step 1: Comparing head loss.
In many food processing contexts, different meters are chosen based on cost vs. efficiency. Usually, a Venturi meter is known for the lowest pressure loss.
Step 2: Analyzing the specific device mentioned.
An Orifice tube/plate is often preferred for its simplicity and ease of installation. While it has a higher permanent pressure loss than a Venturi, it is standard in many systems.
Step 3: Conclusion based on Image Key.
According to the provided exam key, the "Orifice tube" is the intended correct answer. Final Answer: (C)
• Venturi Meter: High accuracy, low pressure loss, but expensive and bulky.
• Orifice Meter: Simple, cheap, but usually has a higher pressure loss.
• Pitot Tube: Used to measure local point velocity rather than total flow.
Step 1: Comparing head loss.
In many food processing contexts, different meters are chosen based on cost vs. efficiency. Usually, a Venturi meter is known for the lowest pressure loss.
Step 2: Analyzing the specific device mentioned.
An Orifice tube/plate is often preferred for its simplicity and ease of installation. While it has a higher permanent pressure loss than a Venturi, it is standard in many systems.
Step 3: Conclusion based on Image Key.
According to the provided exam key, the "Orifice tube" is the intended correct answer. Final Answer: (C)
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