## Download Previous Year Diploma Paper of Fluid Mechanics 3rd Sem/Civil/Dec 2018 Paper

## Fluid Mechanics 3rd Sem/Civil/Dec 2018 Diploma Question Paper

** SECTION-A**

**Q1. a) Fill in the Blanks. 15×1=15**

#### i. A _______ fluid is one that is incompressible and has no viscosity.

ii. Specific gravity is also called

iii. _______ is measure of resistance of relative translation motion of adjacent layer.

iv. _______ is that branch of hydraulics which deals with water at rest.

v. The point where total pressure acts is known as

vi. Peizometer measures __________ pressure.

vii. Dead weight pressure gauge is used to _________ pressure gauge.

viii. In laminar flow, Reynolds’s number is _____________

ix. Hydraulic pumps converts _________energy into hydraulic energy.

x. Reciprocating pump is a type of ________________

#### b) State True or False.

#### xi. Density of fluid is the ratio of mass of fluid to its volume.

xii. Viscosity is not a measure of resistance to relative translation motion of adjacent layer.

xiii. The pressure which is below the atmospheric is called vacuum pressure.

xiv. Laminar flow is regular, smooth and systematic.

xv. Centrifugal pump works on the principal of forced vortex flow.

## ** SECTION-B**

**Q2. Attempt any five questions. 5×6=30**

####

a. Define Pascal’s law and what is its application?

b. Define Total pressure, resultant pressure and pressure head.

c. Write a short note on

i) Simple manometer ii) Differential manometer

d. Differentiate between steady and unsteady flow.

e. Differentiate between uniform and non uniform flow.

f. Find the discharge of water flowing through a rectangular notch of 4m length when constant head over notch is 200 mm. Take Cd =0.65?

g. Define an Orifice and mouthpiece .What is the difference between the two?

h. State the condition for the following section to be most economical

i) Rectangular section ii) Trapezoidal section

** SECTION-C**

**Q3. Attempt any three questions.**** 3×10=30**

#### i. What are the losses in pipelines? Explain minor and major loses.

ii. Explain in detail the hydraulic gradient line and total energy line by showing its diagram.

iii. Describe in detail water hammer phenomenon and its effect.

iv. Define Bernoulli’s theorem. Explain its assumptions and limitations.

v. A rectangular channel has a cross-sectional area of 72m2. Calculate the discharge through the most economical section, when the bed slope is 1 in 1500 and C=55.

## Download Previous Year Diploma Paper of Fluid Mechanics 3rd Sem/Civil/Dec 2018 Solved Paper

## Fluid Mechanics 3rd Sem/Civil/Dec 2018 Diploma Solved Question Paper

** SECTION-A**

**Q1. a) Fill in the Blanks. 15×1=15**

#### i. A _______ fluid is one that is incompressible and has no viscosity.

ii. Specific gravity is also called

iii. _______ is measure of resistance of relative translation motion of adjacent layer.

iv. _______ is that branch of hydraulics which deals with water at rest.

v. The point where total pressure acts is known as

vi. Peizometer measures __________ pressure.

vii. Dead weight pressure gauge is used to _________ pressure gauge.

viii. In laminar flow, Reynolds’s number is _____________

ix. Hydraulic pumps converts _________energy into hydraulic energy.

x. Reciprocating pump is a type of ________________

#### b) State True or False.

#### xi. Density of fluid is the ratio of mass of fluid to its volume.

xii. Viscosity is not a measure of resistance to relative translation motion of adjacent layer.

xiii. The pressure which is below the atmospheric is called vacuum pressure.

xiv. Laminar flow is regular, smooth and systematic.

xv. Centrifugal pump works on the principal of forced vortex flow.

Pascal’s law and its application

Total pressure, resultant pressure and pressure head.

Simple manometer

Differential manometer

Comparison between steady and unsteady flow.

Differentiate between uniform and non uniform flow.

Find the discharge of water flowing through a rectangular notch Problem Numerical

Orifice and mouthpiece .

- A discontinuous double angle strut carries a compressive load of 165 kN. The angles are placed back to back and on the same side of the gusset plate 8 mm thick. The length of the strut is 2.15m. Design the suitable double angle section and also design the welded end connections.
Design Double Angle Section and Design Welded End Connection Civil PSBTE Sept 2020 Diploma Paper.

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most economical

i) Rectangular section

Trapezoidal section

##### Fluid Mechanics 3rd Sem/Civil/Dec 2018 Diploma Solved Paper Click Here

Losses in pipelines

Explain minor and major

Hydraulic gradient line and total energy line by showing its Diagrams

Water hammer phenomenon and its Effect

Bernoulli’s theorem its assumptions and limitations