Civil Engineering (CE) Exam  >  Civil Engineering (CE) Questions  >   Statement I: When flow is unsteady, both nor... Start Learning for Free
Statement I: When flow is unsteady, both normal and tangential components of acceleration will occur.
Statement II: During unsteady flow, in addition to the change of velocity along the path, the velocity will also change with time.
  • a)
    Both Statement I and Statement II are individually true, and Statement II is the correct explanation of Statement I
  • b)
    Both Statement I and Statement II are individually true, but Statement II is not the correct explanation of Statement I
  • c)
    Statement I is true, but Statement II is false
  • d)
    Statement I is false, but Statement II is true
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Statement I: When flow is unsteady, both normal and tangential compon...
The normal acceleration in the flow represents the motion of fluid particles along curved paths (e.g. flow through bends) and tangential acceleration represents the increase in speed of the particle as it moves along the path. These two acceleration components can exist even if the flow is steady. Example: low of water through a converging bend at constant rate.
Also consider flow of water at an increasing or decreasing flow rate through a straight pipe of uniform cross-section. In this case normal acceleration is zero, even though tangential acceleration is non-zero and a function of time, making the flow unsteady.
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Most Upvoted Answer
Statement I: When flow is unsteady, both normal and tangential compon...
Explanation:

Statement I:
- When flow is unsteady, both normal and tangential components of acceleration will occur.
- This statement is true because in unsteady flow, the direction and magnitude of velocity can change with time, leading to both normal and tangential components of acceleration.

Statement II:
- During unsteady flow, in addition to the change of velocity along the path, the velocity will also change with time.
- This statement is also true as unsteady flow refers to a flow condition where the velocity at a specific point changes with time, in addition to changing along the flow path.

Explanation of the relationship between Statement I and Statement II:
- Statement II provides a correct explanation of Statement I because in unsteady flow, the change in velocity with time (Statement II) is the reason why both normal and tangential components of acceleration occur (Statement I).
- Therefore, both statements are individually true, and Statement II correctly explains the occurrence of normal and tangential components of acceleration in unsteady flow.
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Statement I: When flow is unsteady, both normal and tangential components of acceleration will occur.Statement II: During unsteady flow, in addition to the change of velocity along the path, the velocity will also change with time.a) Both Statement I and Statement II are individually true, and Statement II is the correct explanation of Statement Ib) Both Statement I and Statement II are individually true, but Statement II is not the correct explanation of Statement Ic) Statement I is true, but Statement II is falsed) Statement I is false, but Statement II is trueCorrect answer is option 'A'. Can you explain this answer?
Question Description
Statement I: When flow is unsteady, both normal and tangential components of acceleration will occur.Statement II: During unsteady flow, in addition to the change of velocity along the path, the velocity will also change with time.a) Both Statement I and Statement II are individually true, and Statement II is the correct explanation of Statement Ib) Both Statement I and Statement II are individually true, but Statement II is not the correct explanation of Statement Ic) Statement I is true, but Statement II is falsed) Statement I is false, but Statement II is trueCorrect answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Statement I: When flow is unsteady, both normal and tangential components of acceleration will occur.Statement II: During unsteady flow, in addition to the change of velocity along the path, the velocity will also change with time.a) Both Statement I and Statement II are individually true, and Statement II is the correct explanation of Statement Ib) Both Statement I and Statement II are individually true, but Statement II is not the correct explanation of Statement Ic) Statement I is true, but Statement II is falsed) Statement I is false, but Statement II is trueCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement I: When flow is unsteady, both normal and tangential components of acceleration will occur.Statement II: During unsteady flow, in addition to the change of velocity along the path, the velocity will also change with time.a) Both Statement I and Statement II are individually true, and Statement II is the correct explanation of Statement Ib) Both Statement I and Statement II are individually true, but Statement II is not the correct explanation of Statement Ic) Statement I is true, but Statement II is falsed) Statement I is false, but Statement II is trueCorrect answer is option 'A'. Can you explain this answer?.
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