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If a thin plate is held parallel to fluid stream the pressure drag on it is:
- a)Maximum
- b)Minimum
- c)Zero
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
If a thin plate is held parallel to fluid stream the pressure drag on ...
Viscous forces and pressure forces are responsible for drag forces. There are two types of drag forces present pressure drag and skin friction drag. Pressure drag is due to the wake region behind the body and skin friction drag is due to the viscosity of the fluid.
In case of flow over a thin plate placed parallel to a stream of flowing fluid, the flow separation (if occurs), would occur only towards the rear end and the wake is negligibly small. The resulting pressure drag will also be very small, approximate to zero.
On the other hand, pressure drag will be large when the thin plate is held perpendicular to the flow.
Most Upvoted Answer
If a thin plate is held parallel to fluid stream the pressure drag on ...
Explanation:
When a thin plate is held parallel to the fluid stream, the pressure on both sides of the plate is equal. Therefore, the pressure drag on the plate is zero because there is no pressure difference to generate a force in the direction of flow.
Pressure drag is caused by the difference in pressure between the front and back of an object in a fluid stream. When an object is placed perpendicular to the flow, the pressure on the front is higher than the pressure on the back, causing a force in the opposite direction of flow. This is known as pressure drag.
However, when an object is placed parallel to the flow, the pressure on both sides is equal, and there is no pressure difference to generate a force in the direction of flow. Therefore, the pressure drag on a thin plate held parallel to the fluid stream is zero.
Conclusion:
Hence, the correct option is C) Zero.
When a thin plate is held parallel to the fluid stream, the pressure on both sides of the plate is equal. Therefore, the pressure drag on the plate is zero because there is no pressure difference to generate a force in the direction of flow.
Pressure drag is caused by the difference in pressure between the front and back of an object in a fluid stream. When an object is placed perpendicular to the flow, the pressure on the front is higher than the pressure on the back, causing a force in the opposite direction of flow. This is known as pressure drag.
However, when an object is placed parallel to the flow, the pressure on both sides is equal, and there is no pressure difference to generate a force in the direction of flow. Therefore, the pressure drag on a thin plate held parallel to the fluid stream is zero.
Conclusion:
Hence, the correct option is C) Zero.
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If a thin plate is held parallel to fluid stream the pressure drag on it is:a)Maximumb)Minimumc)Zerod)None of theseCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If a thin plate is held parallel to fluid stream the pressure drag on it is:a)Maximumb)Minimumc)Zerod)None of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If a thin plate is held parallel to fluid stream the pressure drag on it is:a)Maximumb)Minimumc)Zerod)None of theseCorrect answer is option 'C'. Can you explain this answer?.
If a thin plate is held parallel to fluid stream the pressure drag on it is:a)Maximumb)Minimumc)Zerod)None of theseCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If a thin plate is held parallel to fluid stream the pressure drag on it is:a)Maximumb)Minimumc)Zerod)None of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If a thin plate is held parallel to fluid stream the pressure drag on it is:a)Maximumb)Minimumc)Zerod)None of theseCorrect answer is option 'C'. Can you explain this answer?.
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