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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-7 section-4

Each section contains 100 MCQs on Fluid Mechanics .
61
In case of a rotameter, the density of the float material is __________ that of the liquid it replaces.
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Answer & Solution
Answer: Option A
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62
In Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass varies as the __________ of its diameter.
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Answer: Option B
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63
Which of the following has the maximum compression ratio?
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Answer: Option C
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64
Stoke's law is valid, when the particle Reynolds number is
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Answer: Option A
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65
Umf is the minimum fluidisation velocity for a bed of particles. An increase in the superficial gas velocity from 2 Umf to 2.5 Umf results in (all velocities are smaller than the entrainment velocity of the particles) no change in the
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Answer: Option C
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66
Foot valve provided in the pump is a __________ valve.
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Answer: Option B
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67
A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is
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Answer: Option D
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68
For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by
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Answer: Option B
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69
In open channel flow in a rectangular channel, the ratio between the critical depth and the initial depth, when a hydraulic jump occurs is
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Answer: Option C
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70
Power required by a centrifugal pump is proportional to (where, D = diameter, N = r.p.m)
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Answer: Option D
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