Hydraulics And Fluid Mechanics MCQ Questions & Answers

Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering

Learn Hydraulics And Fluid Mechanics MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Hydraulics And Fluid Mechanics MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-10 section-2

The power transmitted through the pipe is maximum when the head lost due to friction is equal to

A) One-fourth of the total supply head B) One-third of the total supply head C) One-half of the total supply head D) Two-third of the total supply head

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Answer & Solution

Answer: Option B

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The flow which neglects changes in a transverse direction is known as

A) One dimensional flow B) Uniform flow C) Steady flow D) Turbulent flow

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Answer & Solution

Answer: Option A

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If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by

A) $${\text{H}} = \frac{{{\text{Hg}}}}{{{\text{hf}}}}$$ B) H = Hg × hf C) H = Hg + hf D) H = Hg - hf

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Answer & Solution

Answer: Option D

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A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.

A) Incompressible B) Compressible C) Viscous D) None of these

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Answer & Solution

Answer: Option A

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Coefficient of velocity is defined as the ratio of

A) Actual velocity of jet at vena contracta to the theoretical velocity B) Area of jet at vena contracta to the area of orifice C) Actual discharge through an orifice to the theoretical discharge D) None of the above

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Answer & Solution

Answer: Option A

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For measuring flow by a Venturimeter, if should be installed in

A) Vertical line B) Horizontal line C) Inclined line with flow downward D) In any direction and in any location

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Answer & Solution

Answer: Option D

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The maximum discharge over a broad crested weir is

A) $$0.384{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{1}{2}}}$$ B) $$0.384{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{3}{2}}}$$ C) $$1.71{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{1}{2}}}$$ D) $$1.71{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{3}{2}}}$$

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Answer & Solution

Answer: Option D

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In a centrifugal pump, the liquid enters the pump

A) At the top B) At the bottom C) At the canter D) From sides

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Answer & Solution

Answer: Option C

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The ratio of the inertia force to the __________ is called Euler's number.

A) Pressure force B) Elastic force C) Surface tension force D) Viscous force

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Answer & Solution

Answer: Option A

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100

Bulk modulus of a fluid is the ratio of

A) Shear stress to shear strain B) Increase in volume to the viscosity of fluid C) Increase in pressure to the volumetric strain D) Critical velocity to the viscosity of fluid

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Answer & Solution

Answer: Option C

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Hydraulics And Fluid Mechanics MCQ Questions &amp; Answers | Mechanical Engineering

Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering