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-3 section-5

When the flow in an open channel is gradually varied, the flow is said to be

A) Steady uniform flow B) Steady non-uniform flow C) Unsteady uniform flow D) Unsteady non-uniform flow

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Answer & Solution

Answer: Option B

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When the flow parameters at any given instant remain same at every point, then flow is said to be

A) Quasi-static B) Steady state C) Laminar D) Uniform

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Answer & Solution

Answer: Option D

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The water in a jet propelled boat is drawn through the openings facing the direction of motion of the boat. The efficiency of propulsion is given by

A) $$\frac{{2{\text{v}}}}{{{{\text{V}}_{\text{r}}} - {\text{v}}}}$$ B) $$\frac{{2{\text{v}}}}{{{{\text{V}}_{\text{r}}} + {\text{v}}}}$$ C) $$\frac{{\text{V}}}{{{{\text{V}}_{\text{r}}} - {\text{v}}}}$$ D) $$\frac{{\text{V}}}{{{{\text{V}}_{\text{r}}} + {\text{v}}}}$$

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Answer & Solution

Answer: Option B

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The atmospheric pressure with rise in altitude decreases

A) Linearly B) First slowly and then steeply C) First steeply and then gradually D) Unpredictable

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Answer & Solution

Answer: Option B

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An ideal flow of any fluid must satisfy

A) Pascal law B) Newton's law of viscosity C) Boundary layer theory D) Continuity equation

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Answer & Solution

Answer: Option D

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The bulk modulus of elasticity

A) Has the dimensions of 1/pressure B) Increases with pressure C) Is large when fluid is more compressible D) Is independent of pressure and viscosity

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Answer & Solution

Answer: Option B

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Gradually varied flow is

A) Steady uniform B) Non-steady non-uniform C) Non-steady uniform D) Steady non-uniform

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Answer & Solution

Answer: Option D

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Which of the following pump is generally used to pump highly viscous fluid?

A) Centrifugal pump B) Reciprocating pump C) Air lift pump D) Screw pump

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Answer & Solution

Answer: Option D

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A hydraulic accumulator is a device used to store _________ energy which may be supplied to a machine later on.

A) Strain B) Pressure C) Kinetic D) None of these

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Answer & Solution

Answer: Option B

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A hydraulic accumulator normally consists of

A) Two cylinders, two rams and a storage device B) A cylinder and a ram C) Two coaxial rams and two cylinders D) A cylinder, a piston, storage tank and control valve

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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