What is the principle behind a manometer? (2023)

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Question: What is the principle behind a manometer? (2023)

Options:

Correct Answer: It measures pressure difference.

Exam Year: 2023

Solution:

A manometer is used to measure the pressure difference between two points in a fluid.

What is the principle behind a manometer? (2023)

What is the principle behind a manometer? (2023)

Step 1: Understand that a manometer is a device used to measure pressure.
Step 2: Know that it compares the pressure of a fluid at one point to the pressure at another point.
Step 3: Realize that it usually consists of a U-shaped tube filled with liquid (like water or mercury).
Step 4: Observe that when pressure is applied to one side of the tube, the liquid level changes.
Step 5: Measure the difference in height of the liquid in the two sides of the tube to find the pressure difference.

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