(dce 211) - anucde · (dce 211) b.tech. degree ... state and explain chaining on uneven or sloping...

(DCE 211)

B.Tech. DEGREE EXAMINATION, DEC. - 2013

(EXAMINATION AT THE END OF SECOND YEAR)

Civil Engineering

Paper - I : MATHEMATICS - III

Time : 03 Hours Maximum Marks : 75

Answer Question No. 1 is compulsory. [15 × 1 = 15]

Answer ONE question from each unit [4 × 15 = 60]

1) Answer the following Questions.

a) Define Euler’s Formulae.

b) Define Odd function.

c) Define Periodic Function.

d) Fine a0 in the Fourier series of f (x) = |x|, the interval .xπ π− < < .

e) Write any two properties of Fourier transform.

f) Write complex form of Fourier series.

g) Define Fourier Cosine.

h) Prove that 1/2 1/2.E Eδ −= − .

i) Evaluate 2 cos 2 .x∆

j) Define Interpolation.

k) Write the Newton’s forward interpolation formula.

l) Write stirling’s formula.

m) Prove that (1 )(1 ) 1.+ ∆ − ∇ =

n) State Simpon’s 1/3 rule.

o) State Lagrange’s interpolation formula for unequal interval.

UNIT-I

2) a) Obtain the Fourier series for ( ) xf x e−= in the interval 0 2x π< < .

b) Express f (x) = x as half range cosine solving in 0 < x < 2

(OR)

c) Obtain Fourier Series for the function f (x) given by

2

( ) 1 , 0x

f x xππ

= + − ≤ ≤

1 2

,0x

x ππ

−≤ ≤

Hence deduce that

2

2 2 2

1 1 1..........

1 3 5 8

π+ + + =

d) If ( ) sin for 04

f x x xπ

= ≤ ≤

cos for4 2

x xπ π

= ≤ ≤

UNIT-II

3) a) Find the complex form of the Fourier series of the following periodic

function ( ) sin ,0f x x x π= < <

b) Find the Fourier Cosine Transform of 2

1( )

1f x

x=

+

(OR)

c) Find the Fourier series of x2 in ( , ).π π− Use Parseval’s formula to prove

that

4

4 4 4 4

1 1 1 1.........

1 2 3 4 90

π+ + + + =

d) Find the Fourier Transform of

21 | | 1( )

0 | | 1

x if xf x

if x

− <=

> use it to evaluate

2

6

0

( cos sin )x x xdx

x

∞ −∫

UNIT-III

4) a) Using Newton’s forward, find the value of f (1.6) if

b) Use Bessele’s formula to obtain y25 given y20=24, y24= 32, y23=35, y32= 40

(OR)

x: 1 2 3 4

f(x): 3.49 4.82 5.96 6.5

c) Given

d) Find a real root of the equation 3x = cos x + 1 by using Newton-Raphson

method.

UNIT-IV

5) a) Use Lagrange’s formula to find the form of f (x), given

x 0 2 3 6

f(x) 648 704 729 792

b) Using Newton’s divided difference, evaluate f (8) and f (15).

(OR)

c) Evaluate

6

2

01

xdx

x+∫ by using (i) Trapezoidal rule.

(ii) Simpson’s 1/3 rule.

��

θ 00 5

0 10

0 15

0 20

0 25

0 30

0

Tan θ 0 0.0875 0.1763 0.2679 0.3640 0.4663 0.5774

x 4 5 7 10 11 13

f(x) 48 100 294 900 1210 2028

(DCE 212)


(Examination at the end of Second Year)

CIVIL ENGINEERING

Paper – II : BUILDING MATERIALS AND CONSTRUCTION


Answer Q.1 is compulsorily [15]

Answer ONE question from each unit. [4 X 15 = 60]

1) a) Define structural stability.

b) What are detonators?

c) What are the harmful ingredients in brick earth?

d) Write the different types of kilns.

e) What are the sources of lime?

f) Define conifers.

g) What is standing timber?

h) Write the different types of defects in steel.

i) What are the ingredients of an oil borne paint?

j) Define acoustic plaster.

k) Define DPC.

I) What is scaffolding?

m) What are the characteristics of an ideal paint?

n) Write two uses of steel.

o) What are the different process of manufacture of steel?

UNIT - I

2) a) Explain the qualities of a good building stone.

b) Write the various uses of stones.

OR

3) With neat sketch explain the process of manufacture of bricks by clamp

burning and also write its advantages and disadvantages.

UNIT - II

4) With neat sketch explain the macro and micro structures of a tree.

OR

5) Explain the following methods of steel manufacturing with neat sketches.

a) Open-hearth process.

b) Electric process.

UNIT - III

6) a) Explain about different types of foundations.

b) Explain about the classification of piles.

OR

7) a) Write about the classification of stone masonry. b) Write about the foundation on black cotton soils.

UNIT - IV

8) a) Give the causes of dampness.

b) Explain about different damp proofing materials.

OR

9) a) Explain about the classification of types of shoring.

b) What is a form work? Explain about different types of form works.

��

(DCE 213)



Civil Engineering

Paper – III : SURVEYING - I


Answer Question No. 1 Compulsory (15×1=15)

Answer one question from each unit (4 × 15= 60)

1) a) Define Surveying.

b) What is a plan?

c) Write about city surveying?

d) What are the different types of surveys based on instruments used?

e) What is a Map?

f) What are the different sources of errors?

g) Define precision.

h) What is a permissible error?

i) What are the various methods used for measuring the distances directly?

j) Write any four instruments used for chaining?

k) What are the different types of tapes?

l) Define peg.

m) Define levelling.

n) What is a contour?

o) What are the different methods used for locating contour?

UNIT - I

2) a) List out the different accessories of plane table surveying. Also explain the

purpose for which they are used.

b) Discuss the advantages and disadvantages of plane table Surveying over

other method of Surveying.

OR

3) a) Describe plane Table intersection method with the help of neat sketches.

Under what circumstances this method is resorted to.

b) Explain the various sources of errors in plane Table Surveying.

UNIT - II

4) a) State and Explain Chaining on Uneven or Sloping Ground.

b) Explain the Chaining a line on a flat ground.

OR

5) a) Describe the procedure for measuring horizontal angles by reiteration method.

b) Can you use a theodlite as a leveling instruments? If so how?

UNIT - III

6) a) What are the obstacles in chaining? Explain about them.

b) State and Explain the Principles of Chain Surveying.

OR

7) a) Explain clearly the points of difference between the prismatic compass and

Surveyor’s compass.

b) What are the sources of errors in compass Surveying and what precautions

are to be taken to eliminate them?

UNIT - IV

8) a) Explain the different methods of leveling.

b) Explain the sources of error in levelling.

OR

9) a) Explain the Ceylon Ghat Tracer concept.

b) What are the uses of contour maps?

� � �

(DCE 214)

B.Tech. Degree Examination, DEC. - 2013


Civil Engineering

Paper - IV: STRENGTH OF MATERIALS -I

Time: 03 Hours Maximum Marks: 75

Answer Question No. 1 is compulsory. [15]

Answer ONE question from each unit [4 × 15 = 60]

1) a) What is meant by stress?

b) Write the formula for equivalent area of a compound section and

define each term?

c) Define volumetric strain.

d) Write about volumetric strain of rectangular bar?

e) Define strain energy.

f) Draw S.F diagram for simply supported beam of length ‘L’ and

carrying UDL throughout the span.

g) What is the use of MACAULAY’S method?

h) Write deflection formula for cantilever subjected to a point load at the

end?

i) Write any two assumptions in pure torsion theory?

j) What is meant by polar modulus?

k) Calculate and draw B.M for a simply supported beam of length and

carrying two point loads w1: 10N, w2: 20N at a distance 2m,4m from

left hand side?

l) Define temperature stress?

m) Write about parallel axis theorem.

n) What is meant by elastic limit?

o) What is meant by point of contraflexure?

UNIT - I

2) a) What do you mean by ‘a bar of uniforr, strength’?

b) A steel rod 5m long and 25mm diameter is subjected to an axial tensile

load of 45 kN. Determine the change in length, diameter and volume of the

rod. Take E=2 x 105 N/mm2 and Poisson’s ratio = 0.25.

OR

3) a) Find an expression for the strain energy stored in a body when the load is

applied gradually.

b) An unknown weight falls through a height of 25mm on a collar rigidly

attached to the lower end of a vertical bar 6m long and 850mm in section.

If the maximum extension of the rod is to be 3 mm, what is the

corresponding stress and magnitude of the unknown weight? Take E=2.0 x

105N/mmz.

UNIT – II

4) a) How many points of contraflexure you will have for simply supported

beam overhanging at one end only?

b) A simply supported beam of length 10m carries point loads of 4kN, 10kN

and 7kN at a distance of 1.5m, 2.5m and 3m respectively from left end A.

Draw the S.F. and B.M. diagrams for the simply supported beam.

OR

5) A beam of span L, simply supported at the ends, is loaded with a triangular

load with intensity zero at one end to ‘w’ per unit length at the other end. Plot

the shear force and bending moment diagrams, indicating the principle values.

UNIT – III

6) a) Drive an expression for the shear stress at any point in a circular section of

a beam, which is subjected to a shear force F.

b) A rolled steel joist 350 mm deep and 250 mm wide has flange 16 mm

thick and web 12mm thick. Calculate the proportion in which the flange

and web resist

i) B.M ii) Shear force

OR

7) a) Derive an expression for circumferential stress and longitudinal stress for a

thin shell subjected to an internal pressure.

b) Compare (i) the maximum tensile stresses and (ii) the proportional

increase in volume of a thin cylinder and a thin spherical shell having the

same internal pressure and the diameter/thickness ratio. Take µ=0.3

UNIT - IV

8) a) A close coiled helical spring is made of 10mm square rod. It has 10 coils of

100mm diameter. Find the safe axial load for the spring if the maximum

shear stress is limited to 180N/mm2. Find also the deflection of the load

and the stiffness of the spring. Take C=8.5 x 104N/mm

2.

b) What are the basic assumptions in torsion?

OR

9) A specimen 35mm in diameter and 280mm in length was subjected to tensile

and torsion test. It was found that a tensile load 100KN produced an elongation

of 0.60mm and a torque of 185KN-mm produced a twist of 1.5. Determine.

a) Young’s modulus

b) Rigidity modulus

c) Poisson’s ratio

d) Bulk modulus

��

(DCE215)

B.Tech. DEGREE EXAMINATION, DEC. 2013


Civil Engineering

Paper – V : FLUID MECHANICS


Question No.1 compulsory [15 x 1 = 15]

Answer One question from each Unit [4 x 15 = 60]

1) a) What is vapour pressure?

b) What is buoyancy?

c) Distinguish between ideal fluid and real fluid.

d) What is hydrostatic paradox?

e) What is meant by turbulence?

f) What are the advantages of venturimeter?

g) What are the advantages of orifice meter?

h) What are the types of mouthpieces?

i) Write down the equation of moment of momentum.

j) What is laminar flow?

k) What is critical velocity?

l) What is meant by water hammer?

m) Why pipes are connected in parallel?

n) What is siphon? Where is it used?

o) State the Chezy’s formula for loss of head due to friction in pipe.

UNIT - I

2) a) A Solid cylinder of 4m diameter has 2.5m height. Find the metacentric

height of the cylinder when it is floating with its axis vertical. The specific

gravity of cylinders iS 0.7.

b) Define and derive Newton’s law of viscosity. Give the classification of

fluids based on the Newton’s law. Give the graphical representation of

variation of stress with (dy/dx).

OR

3) a) Write in brief about the classification of flows.

b) Write about the momentum principle. And also write the applications of

momentum equation.

UNIT - II

4) a) Describe briefly different methods of drawing flow nets.

b) The velocity vector in an incompressible flow is given by

V = (6xt + yz2)i + (3t + xy

2)j + (xy – 2xyz – 6tz)K

i) Verify whether the continuity equation is satisfied

ii) Determine the acceleration vector at point A (1,1,1,) at t = 1.0

OR

5) a) Define potential head, velocity head and datum head.

b) List out the assumptions and limitations of Bernoulli’s equation.

© 360 liters per second of water is flowing in a pipe. The pipe is bent by

120o. The diameters at the inlet and outlet of the bend being 360mm

240mm respectively and volume of the bend is 0.14m3. The pressure at the

entrance is 72KN/m2 and the exit if 2.4m above the entrance section

UNIT - III

6 a) Define coefficient of discharge, coefficient of contraction and coefficient of

velocity. What is the relation among them.

b) Derive the formula for velocity of flow through an orifice.

OR

7) a) Explain the principle and working of picot tube with the help of a neat

sketch.

b) Petroleum oil of (Specific Gravity = 0.93 and viscosity = 13CP) flows is

thermally through a horizontal 5cm pipe. A picot tube is inserted at the

center of a pipe and its leads are filled with the same oil and attached to a v-

tube containing water. The reading on the manometer is 10 cm. Calculate

the volumetric flow of oil in m3/sec. The coefficient of picot tube is 0.98.

UNIT - IV

8) a) What do you understand by total energy line, hydraulic gradient line, pipes

in series, pipes in parallel and equivalent pipe.

b) Find the loss of head when a pipe of diameter 200 mm is suddenly enlarged

to a diameter of 400 mm. The rate of flow of water through the pipe is 250

liters/s.

OR

9) a) Determine (i) the pressure gradient, (ii) the shear stress at the two

horizontal parallel plates and (iii) the discharge per meter width for the

laminar flow of oil with a maximum velocity of 2 m/s between two

horizontal parallel fixed plates which are 100 mm apart. Given =2.4525 N

s/m2.

b) Describe Reynolds experiments to demonstrate the two types of flow.

��

(DCE216)

B. Tech. DEGREE EXAMINATION, DEC. – 2013


Civil Engineering

Paper - VI : ENGINEERING GEOLOGY


Answer Question No. 1 compulsorily (15)

Answer ONE question from each Unit (4 × 15 = 60)

1) a) What is meant by weathering?

b) Define Mohr’s Scale of hardness.

c) What are Radial faults?

d) Define Polymorphism.

e) What is Fan fold?

f) Define columnar joints.

g) Write different parts of a dam?

h) What are landslides?

i) What are the different types of rocks?

j) Define Mineral.

k) What are the different types of dams?

l) Define Angular unconformities.

m) Define Isomorphism.

n) Define Magnitude of earthquake.

o) Write the names of economic minerals.

UNIT - I

2) a) Explain the process of weathering of Rocks.

b) What are the influencing factors due to rock weathering give their

importance in civil engineering.

OR

3) Write the physical properties, chemical composition and uses of following

minerals.

a) QUARTZ b) GYPSUM c) HEMATITE d) CHROMITE

e) FELDSPAR.

UNIT - II

4) Describe the mechanism of metamorphism, types of metamorphism and

structures of metamorphic Rocks.

OR

5) Distinguish between the following:

a) Granite, Biotite-Granite gneiss, Quartzite

b) Shale, Slate, Schist.

c) Marble, Limestone, Sandstone

UNIT - III

6) a) What are the parts of FAULTS? Classify the types of Faults with sketches.

b) Distinguish between the structures of Fractures, Joints, Folds,

Unconformity. Give their importance in Role of Civil engineering.

OR

7) a) Explain the causes, classification, waves and effects of earthquakes. Give

their preventive measures for construction of Building in earthquakes

prone areas.

b) Explain the importance classification and effects of landslides. Give a

brief note on Preventive measure for landslides.

UNIT - IV

8) Explain in details of influence and importance of geological structures for

successful tunneling.

OR

9) Explain the purposes, topographical, litho logical considerations in the selection

of a site for successful Dam construction.

��

(DCE 221)

B.Tech. DEGREE EXAMINATION, DEC. 2013


CIVIL ENGINEERING

Paper – I: CONCRETE TECHNOLOGY


Answer Question No.1 compulsory [15]

Answer ONE question from each Unit [4 x 15 = 60]

1) a) What is Ordinary Portland Cement?

b) Explain the functions of sand in mortar.

c) Define water-cement ratio.

d) What is an admixture?

e) Define Workability.

f) Write different types of Batching of concrete.

g) Define Curing of concrete.

h) Define Segregation.

i) What is no fines concrete?

j) What is hardened concrete?

k) What are the factors affecting workability?

l) What are the factors affecting shrinkage?

m) Explain hot weather concreting.

n) What is fibre reinforced concrete?

UNIT – I

2) a) Describe the oxide composition of Ordinary Portland Cement.

b) What are the main compounds into which the above oxides will transform

in the process of fusion?

(OR)

3) a) Explain the phenomenon of bulking of fine aggregates and its practical

significance in mix proportioning.

b) Explain Alkali-aggregate reaction and its effect on the final product of

concrete.

UNIT – II

4) a) List out various field and laboratory tests that are conducted to assess the

properties of fresh concrete.

b) Explain Compaction Factor test describing the test equipment. Compare the

Compaction factor values to Slump of the concrete for different

workability.

(OR)

5) a) Explain workability of concrete? List out various tests to measure

workability of concrete.

b) Explain the significance of the tests on concrete at fresh state while we are

interested only in concrete at hardened state?

UNIT - III

6) a) Explain the effect of gel space ratio on strength of hardened concrete.

b) Calculate the theoretical strength of a sample of concrete made with 600gm

of cement with 0.36 water/cement ratio, on full hydration and 75%

hydration based on concept of gel/space ratio. Specific volume of cement is

0.319ml/gm.

(OR)

7) a) What are the factors affecting the shrinkage of concrete and discuss their

influence?

b) How do you find permeability of hardened concrete in the laboratory?

c) Discuss Carbonation Shrinkage.

UNIT – IV

8) a) Explain significance of concrete mix design. What are various factors to be

kept in mind while designing a concrete mix?

b) Explain I.S. Code method of mix design. What are various mix design

features incorporated in revised I.S. 456-2000.

(OR)

9) a) Explain salient features of Light weight concretes.

b) Explain different types of fibres used to prepare fibre reinforced concretes

and their relative features.

��

(DCE 222)



Civil Engineering

Paper – II : BUILDING DRAWING


Answer ONE question from each unit. (4 X 15 = 60)

UNIT - I

1) a) Write the importance of lighting and ventilation in planning of a

building.

b) What are the principles under laying building bye-laws?

OR

2) a) Write a short note on:

i) Floor Space Index.

ii) Floor Area Ratio.

b) Write a note on building regulations.

UNIT - II

3) a) Draw the line diagram for residential building.

b) Draw the line diagram for school buildings.

OR

4) a) Draw the conventional signs for:

i) Wood across grains.

ii) Steel.

iii) Rock.

iv) Stone masonry.

b) Give neat and fully dimensional sketches of elevation, section and plan

of a full paneled door of 1200mm×2000mm

UNIT - III

5) The line diagram of a residential building is shown in fig.

i) Foundation: 300mm thick C.C 1:2:4 and 600mm wide.

ii) Basement: Brick work in c.m, 1:6 300mm wide and 450 mm above

ground level.

iii) Super structure: all walls are 200mm thick are of brick.

iv) Height of ceiling above floor level is 3000mm.

v) Roof: 120mm thick R.C.C slab.

vi) Parapet wall 100mm thick should be a height of 1000mm above the

roof.

vii) Flooring: 20mm thick c.m. 1:3 over plain cement concrete layer of

1:3:6, 100mm thick.

OR

6) Design a residential building for the following data:

a) The site having dimensions 14m×20m and 7m wide road on southern

side of the plot.

b) The building shall have the following accommodation

i) Verandah.

ii) Living room.

iii) Kitchen-cum- dining room.

iv) Master bed room.

v) Children bed room.

Assume doors and other dimensions. Give the detailed specifications provided

in the building.

��

(DCE 223)

B.Tech. DEGREE EXAMINATION, DEC - 2013

(Examination at the end of Second Year )

Civil Engineering

Paper – III : SURVEYING - II


Answer Question No.1 compulsorily (15×1=15)

Answer ONE Question from each unit (4×15=60)

1) a) Define the term Oblique offset.

b) What is the term Horizontal line.

c) Define the term centering.

d) Name the three methods of measuring volume.

e) What is meant by degree of curve.

f) Define the term Base line.

g) What is the term level surface.

h) Define the term check line.

i) What is bench mark.

j) Define line of collimation.

k) What is level line.

l) Define vertical axis.

m) What is axis of plate level.

n) What is local attraction.

o) Define horizontal plane.

UNIT-I

2) a) State and Explain about total station?

b) What is basic principle of E.D.M? What are the instrumental error in

E.D.M?

OR

3) a) What is a traverse? What are the different types of traverse. Briefly

explain the methods of traversing.

b) Differentiate between Isogonics lines and agonic lines.

c) What are the sources of errors in Theodolite traversing?

UNIT-II

4) a) Explain the measurement of volume for cross section.

b) Explain i) Simpson’s rule

ii) Coordinate method.

OR

5) Calculate the area of a figure from following readings recorded by the

planimeter with the anchor point outside the figure.

Initial reading = 9.918

Final reading = 4.254

Multiplying constant M = 100sq.cm

Constant of the instrument: C = 23.521

It was observed that the zero mark on the dial passed the index once in the anti

clock wise direction.

UNIT-III

6) a) Explain the advantages of Tacheometric Surveying.

b) Explain different systems of Tacheometry and discuss their relative

merits.

OR

7) Derive an expression for the horizontal distance of a vertical staff from a

tacheometer if the line of slight is inclined.

UNIT-IV

8) a) Explain the relationship between radius and degree of curves.

b) Explain the elements of simple circular curve.

OR

9) a) Describe the methods of sitting out a simple circular curve using two

Theodolites.

b) Two roads meet at angle of 127o30

/. Calculate the necessary data for

setting out curve of 450m radius to connect two straight portions of

the road if a Theodolite is available.

��

(DCE 224 )



Civil Engineering

Paper - IV : STRENGTH OF MATERIALS-II


Answer Question No.1 is compulsory (15)

Answer One question from each unit (4×15=60)

1) a) What is the importance of Mohris stress circle.

b) Write any two different types of loading that can be applied on member.

c) What are the two methods for determining stresses on sections oblique to

the line of action of external forces.

d) Define the term longitudinal stress.

e) Define the term slenderness ratio.

f) Write the basic differential equation of the elastic curve.

g) Write general equation for elastic curve.

h) What is complimentary shear stress?

i) Define the term Poisson’s ratio.

j) Define the term ‘‘factor of safety’’.

k) What is shear strain energy?

l) What are the main theories of failure for a material?

m) What is the importance of wire winding of thin cylinders?

n) What type of stresses act upon pressure vessels are shells?

o) What is the point of contra flexure?

Unit -I

2) Apiece of material is subjected to two perpendicular tensile stresses of loo mpa

and 60mpa. Determine the plane on which the resultant stress has maximum

obliquites with the normal. And also find the resultant stress on this plane.

OR

3) a) A rectangular block is subjected to three mutually normal stresses of

magnitude 60Mpa, 70Mpa, and 80Mpa. Determine the strain energy and

shear strain energy per unit volume. Take E=200Gpa and poissions ratio

0.3.

b) What is strain energy of a material? Derive the expressions for the same in

different forms.

Unit -II

4) A thin cylindrical boiler is of internal diameter 2m, thickness of metal 14mm

and the permissible tensile stress of plate is 90N/mm2. The efficiency of

longitudinal joint and circumterential joint are 70% and 46% respectively.

Calculate the permissible stream pressure, and the longitudinal and

circumterential stresses in the solid plate.

OR

5) a) What is mohr’s stress circle? How is it useful in the solution of stress-

analysis problems?

b) Show that shear stress in a body acted upon by two equal perpendicular

stresses is zero.

Unit -III

6) A bolt is acted upon by an axial pull of 16kn along with a transverse shear force

of 10kn. Dematerial is 250Mpa and a factor of safety 2.5 is to be taken.

Poisson’s ratio is 0.3.

OR

7) a) What is Rankine emperical relation for columns?

b) A 3.2m long fixed-end hollow cast-iron column has its internal and

external diameters as 60mm and 80 respectively. Determine Rankine’s

crippling load using the value of crushing stress to be 500Mpa and the

value of the Rankine’s constant 1/1600.

Unit -IV

8) A horizontal continous beam ABC is fixed at C and simply supported at A&B.

The lengths AB and BC are 5m and 6m respectively. A point load of 50KN acts

at a distance of 3m from A and another of 70KN at a distance of 3m from C.

Find the reactions on the supports and draw the shear force and bending moment

diagrams.

OR

9) Derive expressions to find out the equations for slope and deflection of a

simply supported beam of length ‘L’ and uniform EI with a central point load

W. Hence evaluate its maximum slope and deflection.

� � �

(DCE 225)



Civil Engineering

Paper - V : HYDRAULICS & HYDRAULIC MACHINES


Answer Question No. 1 compulsorily. (5×3=15)

Answer ONE question from each unit. (4×15 = 60)

1) a) Define GVF and RVF? Also differentiate between GVF and RVF.

b) Write short note on Buckingham-Pi theorem.

c) What is surge? Give the classification of surges briefly.

d) Write the functions of draft tube.

e) Give the conditions to be fulfilled by a circular section to get the maximum

discharge.

UNIT - I

2) a) State and explain Chezy’s formula for uniform flow in open channels.

What is momentum energy correction factor?

b) What do you mean by most economical section of a open channel? Discuss

in detail.

OR

3) a) What different types of flows in open channels? What is energy correction

factor? Derive the equation for the same.

b) State and explain Bazin’s formula for uniform flow in open channels.

UNIT - II

4) a) What is rapidly varied flow? Derive the expression for energy dissipation

in a hydraulic jump formation.

b) List out different surface profiles of non uniform flow in open channels.

OR

5) a) What are the characteristics of non uniform flow in open channels? State

the dynamic equation of GVF and discuss its uses.

b) Explain how energy is dissipated in a hydraulic jump formation.

UNIT - III

6) a) What is the type of Francis turbine? Explain its working with neat

sketches.

b) Discuss the significance and uses of the draft tubes? Derive the equation

for the efficiency of a draft tube. How are they classified?

OR

7) a) What are the types of hydroelectric power plants? Explain in detail.

b) What are the criteria on which the turbines are classified?

UNIT - IV

8) a) What is indicator diagram of a reciprocating pump? Explain the working

of a reciprocating pump with neat sketches.

b) How many impellers are required in a multistage pump to lift 5000

liters/minute against a head of 200 m, at a speed of 800 rpm. The specific

speed of the impeller is not to exceed 700.

OR

9) a) What are the performance characteristics of centrifugal pumps?

b) Determine the number of the impellers required for a multistage

centrifugal pump to deliver 3000 liters per minute to a height of 200m at a

speed of 800 rpm. The specific speed value is not to exceed 600.

� � �

(DCE 226)



Civil Engineering

Paper - VI : FUNDAMENTALS OF ELECTRICAL SCIENCE &

MECHANICAL SCIENCE


Answer Question No.1 & 6 Compulsory (15)

Answer any ONE question from each unit (4x15=60)

PART – A

(Electrical Science)

1) a) Differences between DC and AC supply.

b) Working principle for DC generator.

c) Basic principle of operation of alternators.

d) Effect of wind on sag.

e) Define “stress” in overhead conductors.

f) Define power and write its units.

g) Main parts of a transformer.

UNIT - I

2) a) Explain with the help of circuit diagram, the principle and working of half-

wave rectifier.

b) Explain the classification of DC generator and also draw their pictorial

representation.

OR

3) Explain the principle of operation of single phase transformer with the help of

neat diagram.

UNIT - II

4) Explain the constructional features of 3-phase induction motor with neat

diagrams. Derive its induced EMF equation.

OR

5) What are the different types of electrical towers and write the effects on it?

PART – B

(Mechanical Science)

6) a) Different types of belt drives.

b) Different types of welding.

c) Operation of a turbine.

d) Principle of Gas turbine.

e) Different types of Boilers.

f) Function of a compressor.

g) Define “slip”.

UNIT – III

7) What is a casting process? Write the different casting processes with neat

sketches.

OR

8 a) Write about welding operation and mention its applications.

b) Two pull-ups, one 350 mm diameter and the other 150 mm diameter are on

parallel shafts 1.75 m apart and are connected by a crossed belt. Find the

length of the belt required and angle of contact between the belt and each

pulley.

UNIT – IV

9) Derive the expression for the length of the belt drive for open belt drives.

OR

10) a) Explain the difference between Impulse and Reaction Turbine.

b) Derive the expression for work required in case of single stage air

compressor.

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(dce 211) - anucde · (dce 211) b.tech. degree ... state and explain chaining on uneven or sloping...

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