Mechanical Engineering Exam > Mechanical Engineering Questions > Consider the following statements:1. Streak l...
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Consider the following statements:
1. Streak line indicates instantaneous position of particles offluid passing through a point.
2. Streamlines are paths traced by a fluid particle with constantvelocity.
3. Fluid particles cannot cross streamlines irrespective of thetype of flow.
4. Streamlines converge as the fluid is accelerated, and diverge when retarded.
Which of these statements are correct?
1. Streak line indicates instantaneous position of particles offluid passing through a point.
2. Streamlines are paths traced by a fluid particle with constantvelocity.
3. Fluid particles cannot cross streamlines irrespective of thetype of flow.
4. Streamlines converge as the fluid is accelerated, and diverge when retarded.
Which of these statements are correct?
- a)1 and 4
- b)1, 3 and 4
- c)1, 2 and 4
- d)2 and 3
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Consider the following statements:1. Streak line indicates instantaneo...
Ans. (b) 2 is wrong.
Most Upvoted Answer
Consider the following statements:1. Streak line indicates instantaneo...
Statement Analysis:
Let's analyze each statement one by one:
Statement 1: Streak line indicates instantaneous position of particles of fluid passing through a point.
A streak line represents the path traced by a fluid particle over a certain period of time. It shows the history of the fluid particle's movement. Therefore, statement 1 is incorrect.
Statement 2: Streamlines are paths traced by a fluid particle with constant velocity.
Streamlines represent the instantaneous direction of fluid flow at each point in the fluid. Fluid particles along a streamline move parallel to each other and maintain a constant velocity. Therefore, statement 2 is correct.
Statement 3: Fluid particles cannot cross streamlines irrespective of the type of flow.
Streamlines are imaginary lines that do not have any physical existence. They represent the direction of fluid flow at each point. Fluid particles can cross each other's path, but they cannot cross streamlines. Therefore, statement 3 is correct.
Statement 4: Streamlines converge as the fluid is accelerated, and diverge when retarded.
Streamlines converge when the fluid is accelerated because the fluid particles are brought closer together. On the other hand, streamlines diverge when the fluid is retarded because the fluid particles move away from each other. Therefore, statement 4 is correct.
Correct Statements:
Based on the analysis above, the correct statements are:
- Statement 2: Streamlines are paths traced by a fluid particle with constant velocity.
- Statement 3: Fluid particles cannot cross streamlines irrespective of the type of flow.
- Statement 4: Streamlines converge as the fluid is accelerated, and diverge when retarded.
Therefore, the correct option is option B, which includes statements 1, 3, and 4.
Let's analyze each statement one by one:
Statement 1: Streak line indicates instantaneous position of particles of fluid passing through a point.
A streak line represents the path traced by a fluid particle over a certain period of time. It shows the history of the fluid particle's movement. Therefore, statement 1 is incorrect.
Statement 2: Streamlines are paths traced by a fluid particle with constant velocity.
Streamlines represent the instantaneous direction of fluid flow at each point in the fluid. Fluid particles along a streamline move parallel to each other and maintain a constant velocity. Therefore, statement 2 is correct.
Statement 3: Fluid particles cannot cross streamlines irrespective of the type of flow.
Streamlines are imaginary lines that do not have any physical existence. They represent the direction of fluid flow at each point. Fluid particles can cross each other's path, but they cannot cross streamlines. Therefore, statement 3 is correct.
Statement 4: Streamlines converge as the fluid is accelerated, and diverge when retarded.
Streamlines converge when the fluid is accelerated because the fluid particles are brought closer together. On the other hand, streamlines diverge when the fluid is retarded because the fluid particles move away from each other. Therefore, statement 4 is correct.
Correct Statements:
Based on the analysis above, the correct statements are:
- Statement 2: Streamlines are paths traced by a fluid particle with constant velocity.
- Statement 3: Fluid particles cannot cross streamlines irrespective of the type of flow.
- Statement 4: Streamlines converge as the fluid is accelerated, and diverge when retarded.
Therefore, the correct option is option B, which includes statements 1, 3, and 4.
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Community Answer
Consider the following statements:1. Streak line indicates instantaneo...
Don't the particles cross in laminar flow?
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Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer?.
Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice Consider the following statements:1. Streak line indicates instantaneous position of particles offluid passing through a point.2. Streamlines are paths traced by a fluid particle with constantvelocity.3. Fluid particles cannot cross streamlines irrespective of thetype of flow.4. Streamlines converge as the fluid is accelerated, and diverge when retarded.Which of these statements are correct?a)1 and 4b)1, 3 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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