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-1 section-7

The centre of gravity of the volume of the liquid displaced is called

A) Centre of pressure B) Centre of buoyancy C) Metacentre D) None of these

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Answer & Solution

Answer: Option B

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A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

A) 9,000 kg B) 13,500 kg C) 18,000 kg D) 27,000 kg

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Answer & Solution

Answer: Option B

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In a reciprocating pump, air vessels are used to

A) Smoothen the flow B) Reduce suction head C) Increase delivery head D) Reduce acceleration head

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Answer & Solution

Answer: Option D

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The absolute pressure is equal to

A) Gauge pressure + atmospheric pressure B) Gauge pressure - atmospheric pressure C) Atmospheric pressure - gauge pressure D) Gauge pressure - vacuum pressure

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Answer & Solution

Answer: Option A

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The pressure less than atmospheric pressure is known as

A) Suction pressure B) Vacuum pressure C) Negative gauge pressure D) All of these

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Answer & Solution

Answer: Option D

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One stoke is equal to

A) 10^-2 m²/s B) 10^-3 m²/s C) 10^-4 m²/s D) 10^-6 m²/s

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Answer & Solution

Answer: Option C

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The Newton's law of resistance is based on the assumption that the

A) Planes of the body are completely smooth B) Space around the body is completely filled with the fluid C) Fluid particles do not exert any influence on one another D) All of the above

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Answer & Solution

Answer: Option D

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When the Mach number is between __________ the flow is called super-sonic flow.

A) 1 and 2.5 B) 2.5 and 4 C) 4 and 6 D) 1 and 6

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Answer & Solution

Answer: Option D

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The center of pressure of a surface subjected to fluid pressure is the point

A) On the surface at which resultant pressure acts B) On the surface at which gravitational force acts C) At which all hydraulic forces meet D) Similar to metacentre

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Answer & Solution

Answer: Option A

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Surface tension

A) Acts in the plane of the interface normal to any line in the surface B) Is also known as capillarity C) Is a function of the curvature of the interface D) Decreases with fall in temperature

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Answer & Solution

Answer: Option A

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

Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering