Hydraulics And Fluid Mechanics MCQ Questions & Answers

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-8 section-6

Each section contains 100 MCQs on Hydraulics and Fluid Mechanics in ME .

Liquids transmit pressure equally in all the directions. This is according to

A) Boyle's law B) Archimedes principle C) Pascal's law D) Newton's formula

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The hydraulic mean depth or the hydraulic radius is the ratio of

A) Area of flow and wetted perimeter B) Wetted perimeter and diameter of pipe C) Velocity of flow and area of flow D) None of these

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Answer & Solution

Answer: Option A

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The mass of 2.5 m³ of a certain liquid is 2 tonnes. Its mass density is

A) 200 kg/m³ B) 400 kg/m³ C) 600 kg/m³ D) 800 kg/m³

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Answer & Solution

Answer: Option D

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Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

A) 39.2% B) 49.2% C) 68.8% D) 84.8%

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Answer & Solution

Answer: Option A

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Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of

A) 39.2% B) 49.2% C) 68.8% D) 84.8%

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Answer & Solution

Answer: Option D

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The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

A) Head of water (h) B) h² C) $$\frac{{\text{V}}}{{\text{T}}}$$ D) $$\frac{{\text{h}}}{2}$$

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Answer & Solution

Answer: Option C

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The loss of pressure head in case of laminar flow is proportional to

A) Velocity B) (Velocity)² C) (Velocity)³ D) (Velocity)⁴

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Answer & Solution

Answer: Option A

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In a centrifugal pump, the regulating valve is provided on the

A) Casing B) Delivery pipe C) Suction pipe D) Impeller

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Answer & Solution

Answer: Option B

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Piezometer is used to measure

A) Pressure in pipe, channels etc. B) Atmospheric pressure C) Very low pressures D) Difference of pressure between two points

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Answer & Solution

Answer: Option C

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Differential manometer is used to measure

A) Pressure in pipes, channels etc. B) Atmospheric pressure C) Very low pressure D) Difference of pressure between two points

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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

Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering