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Fluid Mechanics MCQ Questions & Answers | Chemical Engineering

Learn Fluid Mechanics MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Fluid Mechanics MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-3 section-1

Each section contains 100 MCQs on Fluid Mechanics .
21
The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.
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Answer & Solution
Answer: Option B
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22
The ratio of inertial forces to elastic forces is called the __________ number.
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Answer: Option B
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23
$$\frac{{{\text{N}}_{{\text{Re}}}^2}}{{{{\text{N}}_{{\text{Fr}}}}}}$$ is called the __________ number.
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Answer: Option B
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24
The ratio of inertial forces to gravity forces is called the __________ number.
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Answer: Option B
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25
The ratio of pressure forces to inertial forces is called the __________ number.
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Answer: Option B
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26
Ratio of inertial forces to surface tension forces is called the __________ number.
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Answer: Option D
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27
The ratio of inertial forces to viscous forces is called the __________ number.
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Answer: Option D
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28
Cavitation in a centrifugal pump can be avoided by keeping the
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Answer: Option A
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29
Which of the following must be followed by the flow of a fluid (real or ideal)?
(I) Newton's law of viscosity.
(II) Newton's second law of motion.
(III) The continuity equation.
(IV) Velocity of boundary layer must be zero relative to boundary.
(V) Fluid cannot penetrate a boundary.
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Answer & Solution
Answer: Option B
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30
Cavitation in a centrifugal pump results from
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Answer: Option B
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