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-7 section-4

The discharge over a rectangular notch is (where b = Width of notch and H = Height of liquid, above the sill of the notch)

A) $$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{gH}}} $$ B) $$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{g}}} \times {\text{H}}$$ C) $$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{g}}} \times {{\text{H}}^{\frac{3}{2}}}$$ D) $$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{g}}} \times {{\text{H}}^2}$$

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Answer & Solution

Answer: Option C

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An ideal flow of any fluid must fulfill the following

A) Newton's law of motion B) Newton's law of viscosity C) Pascal's law D) Continuity equation

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Answer & Solution

Answer: Option D

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Venturimeter is used to

A) Measure the velocity of a flowing liquid B) Measure the pressure of a flowing liquid C) Measure the discharge of liquid flowing in a pipe D) Measure the pressure difference of liquid flowing between two points in a pipe line

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Answer: Option C

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The centre of pressure acts __________ the centre of gravity of immersed surface.

A) At B) Above C) Below D) None of these

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Answer & Solution

Answer: Option C

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In a free nappe,

A) The pressure below the nappe is atmospheric B) The pressure below the nappe is negative C) The pressure above the nappe is atmospheric D) The pressure above the nappe is negative

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Answer & Solution

Answer: Option A

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In a static fluid

A) Resistance to shear stress is small B) Fluid pressure is zero C) Linear deformation is small D) Only normal stresses can exist

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Answer & Solution

Answer: Option D

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The unit of kinematic viscosity in S.I. units is

A) N-m/s B) N-s/m² C) m²/s D) N-m

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Answer & Solution

Answer: Option C

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Center of pressure on an inclined plane is

A) At the Centroid B) Above the Centroid C) Below the Centroid D) At metacentre

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Answer & Solution

Answer: Option C

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Low specific speed of turbine implies it is

A) Propeller turbine B) Francis turbine C) Impulse turbine D) Any one of the above

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Answer & Solution

Answer: Option C

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Medium specific speed of turbine implies it is

A) Propeller turbine B) Francis turbine C) Impulse turbine D) Any one of the above

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Answer & Solution

Answer: Option B

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

Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering