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Difficulty: EasyFluid Dynamics and Bernoulli's Principle

Evaluate whether the following statement is true or false:

In a mechanical carburetor, outside air flows through a narrow central constriction. As the air accelerates and its velocity increases through this narrow section, the static pressure of the air increases, forcing fuel to mix into the airstream.

Answer: Answer

Answer

False
The statement is false because Bernoulli's principle establishes an inverse relationship between a fluid's velocity and its static pressure. As the air accelerates through the carburetor's narrow constriction, its static pressure drops, creating a low-pressure area (a partial vacuum) that siphons fuel into the airstream, rather than an area of increased pressure.

Step-by-Step Solution

1
Recall Bernoulli's principle regarding fluid velocity and static pressure.
Bernoulli's principle states that as the velocity of a fluid increases, its static pressure decreases.
Establishing the fundamental physical law governing fluids moving through a constriction.
2
Evaluate the claim made in the statement.
The statement incorrectly claims that an increase in air velocity causes the static pressure to increase.
Comparing the scenario's claim directly against the established physics principle to determine its validity.

Key Concept

Inverse relationship between fluid velocity and static pressure (Bernoulli's Principle)
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Topics

Fluid Dynamics and Bernoulli's Principle

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