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The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, are related to the upstream pressure and velocity, respectively, as follows:
- a)pressure is lower but velocity is higher
- b)pressure is higher but velocity is lower
- c)both pressure and velocity are lower
- d)pressure and velocity are identical
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
The pressure and velocity at the throat of a Venturi tube, measuring t...
The convergent entrance of venture-tube is called as “upstream”. As pipe becomes narrow towards throat, a gradual decrease in cross-sectional area of the conduct causes higher fluid velocity according to continuity equation). Due to this, pressure drops.
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The pressure and velocity at the throat of a Venturi tube, measuring t...
Explanation:
Introduction:
A Venturi tube is a device used to measure the flow rate of a fluid by utilizing the principle of fluid dynamics. It consists of a converging section, called the inlet, and a diverging section, called the throat, connected by a narrow passage.
Pressure and Velocity Relationship:
According to Bernoulli's principle, the pressure and velocity of a fluid are inversely proportional to each other. As the fluid flows through a Venturi tube, the converging section causes the fluid to accelerate, resulting in an increase in velocity and a decrease in pressure. At the throat, where the cross-sectional area is the smallest, the velocity is the highest and the pressure is the lowest.
Options:
Let's analyze each option to determine the correct answer.
a) Pressure is lower but velocity is higher:
This option is correct. As explained earlier, the pressure decreases and the velocity increases as the fluid flows through the Venturi tube from the inlet to the throat.
b) Pressure is higher but velocity is lower:
This option is incorrect. The pressure decreases and the velocity increases, so the statement contradicts the behavior of fluid flow in a Venturi tube.
c) Both pressure and velocity are lower:
This option is incorrect. While the pressure decreases, the velocity actually increases as the fluid flows through the Venturi tube.
d) Pressure and velocity are identical:
This option is incorrect. The pressure and velocity are inversely related, so they cannot be identical.
Therefore, the correct answer is option 'A' - pressure is lower but velocity is higher.
Introduction:
A Venturi tube is a device used to measure the flow rate of a fluid by utilizing the principle of fluid dynamics. It consists of a converging section, called the inlet, and a diverging section, called the throat, connected by a narrow passage.
Pressure and Velocity Relationship:
According to Bernoulli's principle, the pressure and velocity of a fluid are inversely proportional to each other. As the fluid flows through a Venturi tube, the converging section causes the fluid to accelerate, resulting in an increase in velocity and a decrease in pressure. At the throat, where the cross-sectional area is the smallest, the velocity is the highest and the pressure is the lowest.
Options:
Let's analyze each option to determine the correct answer.
a) Pressure is lower but velocity is higher:
This option is correct. As explained earlier, the pressure decreases and the velocity increases as the fluid flows through the Venturi tube from the inlet to the throat.
b) Pressure is higher but velocity is lower:
This option is incorrect. The pressure decreases and the velocity increases, so the statement contradicts the behavior of fluid flow in a Venturi tube.
c) Both pressure and velocity are lower:
This option is incorrect. While the pressure decreases, the velocity actually increases as the fluid flows through the Venturi tube.
d) Pressure and velocity are identical:
This option is incorrect. The pressure and velocity are inversely related, so they cannot be identical.
Therefore, the correct answer is option 'A' - pressure is lower but velocity is higher.
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The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer?
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The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer?.
The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer?.
Solutions for The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, arerelated to the upstream pressure and velocity, respectively, as follows:a)pressure is lower but velocity is higherb)pressure is higher but velocity is lowerc)both pressure and velocity are lowerd)pressure and velocity are identicalCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
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