I0511 I
2010
CIVIL ENGINEERING
Paper 1
Time: 3 Hours] Maximum Marks: 300

INSTRUCTIONS
Candidates should attempt all the questions in Parts B However, they have to choose only three questions in Part D. This paper has four parts: Answers must be written in the medium opted (i.e. English Kannada). A B C D 20 marks 100 marks 90 marks 90 marks Marks allotted to each question are indicated in each part. C. or
[Turn over


0511 (2

PART A 4x5=20
Answer all questions. Each question carries 5 marks.
1. Differentiate between statically determinate and statically indeterminate structures.

What are Newtonian fluids?


Define the terms Hydraulic gradient line and Total energy line.


How are soils classified based on their grain Slze, as per recommendations of the Bureau of Indian Standards


31 0511
PARTB 10x10=100 Answer all questions. Each question carries 10 marks.
2.
Explain the procedure of analysis .of continuous beams by Moment Distribution Method, including beams with sunken supports.

3.
Design a suitable fillet welded joint between two plates of size 160 mm x 8 mm and 200 mm x 8 mm to develop the full strength of the smaller plate in tension. Assume allowable tensile stress in the plates as 140 N/mm2.

4.
What are the assumptions made in the limit state design of concrete structures What are the recommendations of the Indian Standard code in this regard

5.
Derive an expression for .capillary rise (of water) in a glass tube, when the bottom end of the tube is dipped in a tub of water.

6.
Explain steady and unsteady flows uniform and non-uniform flows.

7.
Derive an expression for the average coefficient of permeability in layered soils [with three layers of thicknesses H2 and Hfrom top; with


s
coefficients of permeabilities of the individual layers being kI, k2and k
a
respectivelyJ when flow is vertical and normal to the bedding planes.
8.
.Explain the types of triaxial shear tests based on drainage conditions. What do you understand by effective and total shear strength parameters Discuss their utility in geotechnical designs.

9.
What is SPT What are the corrections applied to the observed blow counts? How is SPT value useful in estimating the load carrying capacity of individual piles?

10.
What are low level and higher level computer languages List any five programming languages and their main purpvses.

11.
Define the following fluid properties, giving their units


Specific weight,


SpecifIC volume, and




Viscosity.
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05/1 14)
PARTe 6x15=90
Answer all questions. Each question carries 15 marks.
12. Sketch the shear force and bending moment diagrams for the beam shown in Figure below
40kN 80kN
80kN-m(r e40kN-m
11
m
13. Design a compression member, using anyone of the angle sections available shown in table below, whose effective length is 2-95 m and to carry a compressive load of 65 kN.
ISA 75 x 75 x 10 with sectional area of 1402 mm2 and mImmum radius of gyration.
Oi) ISA 80 x 80 x 10 with sectional area of 1781 mm2 and mInimUm radius of gyration of 15·4 mm.
ISA 90 x 90 x 10 with sectional area of 2012 mm2 and mmUTIum radius of gyration of 16·4 mm.
Permissible stresses are
1/r Permissible stress l/r Permissible stress
in MPa in MPa
100 84 160 42
120 67 170 37
140 53 180 33
150 47 200 27

14. What is dimensional analysis Discuss the methods of dimensional analysis.
0511
15.
Find the discharge through a trapezoidal channel, of bottom width 8 m with side slopes of IH av. The depth of flow of water is 2-4 m and value of Chezy's constant is 50. Slope of the bed of the channel is 1 in 4000.

16.
The soil stratum at a site consists of a 5 m thick layer of sand at top, overlying a 6 m thick clay layer. Ground water table at site is at 3 m depth below the ground surface. Neglecting capillary effects draw total, neutral and effective stress diagrams. Other data available are:


E 0·6, S 40% above water table, G 2·65
Sand
Clay
w G 2·7
17. With a neat sketch showing all the components of a (Vidalean) Reinforced Earth Retaining wall, explain the role of each component. What are the, advantages of Reinforced Earth
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05/1 61
PARTD
Answer any 30 marks. three of the following five questions. Each question carries

18. Explain the external stability checks to be performed in the analysis of conventional gravity retaining walls and also in case of reinforced earth retaining walls.
A masonry retaining wall, of trapezoidal section and 4-5 m high has top and base widths of 0·6 m and 2-4 respectively. The back of the retaining wall is smooth and vertical and the backfill soil has a unit weight of 18 kN/m3 to its full height, with angle of internal friction of 30°. Assume SEC of foundation soil as 150 kN/m2 and coefficient of friction at base as 0·7. Check the external stability of the retaining wall and give your comments. 2x15
19. What is boundary layer Differentiate between laminar boundary layer and turbulent boundary layer.

What are the methods of preventing the separation of boundary layer?


Define displacement thickness and what IS the expreSSIOn for displacement thickness 3xlO


20. (al What are the modes of vibrations of a block foundation lllustrate with a sketch.

What are the types of machine foundations?


What are the design criteria to be followed while designing machine foundations


Define coefficient of elastic uniform compression and coefficient of elastic uniform shear. Give the relationship between the two. 1


4x7­
2
21. Clearly differentiate between consolidation and compaction.
What do you understand by normally consolidated. over consolidated and under consolidated clays?
7 05/1

The soil stratum at a site consists of a 5 m thick top layer of sand overlying a 6 m thick clay layer. Clay layer is underlain by rock. Ground water table at· site is 3 m below the ground surface. Sand above the water table has a unit weight of 19 kN/m3. Saturated density of sand is 21 kN/m3. Saturated density of clay is 19·5 kN/m3. Liquid limit of clay is 70% and its original voids ratio was 0-65. Additional vertical stress at the centre of the clay layer due to the construction of a building is 100 kN/m2. Depth of foundation is 2·5 m. Estimate the magnitude of primary consolidation settlement. 3xlO
22. What is the difference between a parallel port and a serial port (of a computer)
Write a FORTRAN program to display the results of 200 tests on 100 specimens of a certain building material. Each specimen was subjected to two tests namely Tl and T2. Acceptance criteria for each sample are (il that results of both tests T1 and T2 should be more than 75 units or Result of test Tl should be more than 80 units and result of test T2 should be more than 60 units. 10+20
I05/2 I
2010
CIVIL ENGINEERING
Paper 2
Time: 3 Hours J Maximum Marks: 300

INSTRUCTIONS
Candidates should attempt all the questions in Parts B C. However, they have to choose only three questions in Part D.
Answers must be written in the medium opted (i.e. English Dr KannadaJ.
This paper has four parts:
A 20 marks
B 100 marks
C 90 marks
D 90 marks

Marks allotted to each question are indicated in each part.
[Turn over

05/2 (2
PART A
Answer all questions. Each question carries 5 marks.

1. What is ferrocement What are the materials used Give Borne practical of ferrocement.

How are roads classified


Give the general water budget equation for a catchment.


What is a traffic rotary and what is its main objective?



I 05/2
PARTB

Answer all questions. Each question carries 10 marks. 10x10=100
2.
With neat sketches, explain the main features of English and Flemish bonds.

3.
What are the basic rules for CPM network What are the advantages of CPM?

4.
Explain the CBR method of design of pavements.

5.
Soil stratum at a site consists of a 9 m thick top clay layer underlain by a 1·5 m thick sand layer underlain by impermeable rock. Water is pumped Qut of a main well dug up to the rock layer. At steady state, the rate of flow was found to be 54 ell.m.lhouT. Water levels in two observation wells located at radial distances of 6 m and 15 m from axis of main well were 5 m and 4-5 m below the ground surface, respectively. Compute the coeflicient of permeability of the sand layer.

6.
What are the types of rails used in railways? What are the requirements of an ideal rail

7.
What is turbidity Explain how turbidity can be measured m the laboratory.

8.
Differentiate between structural and non-structural cracks in buildings. What arc the principal causes of development of cracks in buildings Discuss any two of these causes in detail.

9.
Give detailed specifications for supplying and fixing Indian pattern water-closet including flushing cistern.

10.
Write a detailed note on EIA of thermal power plants.

11.
Discuss the factors influencing the choice of the type of dam at a given site.


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OS/2

PARTe
Answer all questions. Each question carries 15 marks. 6x15=90
12.
Give a comparison between slow sand filter and ra:rid gravity filter.

13.
What is a WBM road Briefly explain the method of construction of WBM roads.

14.
Give the permissible water quality standards for drinking water.

15.
Explain BOD. 2-5 ml of raw sewage has been diluted to 250 rol. The D.O. concentration of the diluted sample at the beginning of the BOD test was 8 mg/I. If after 5 days incubation at 20°C, the D.O. concentration of the diluted sample reduced to 5 determine the BOD of the raw sewage.

16.
What are the component parts of a permanent way State the requirements of an ideal permanent way.

17.
What are the objectives of river training? How are river training works classified? Explain any two methods of river training.


05/2
PARTD
Answer any three of the following five questions. Each question carnes
30 marks.

18.
What are the various aspects of geometric design of roads Explain each one of them briefly.

19.
Explain the different types of spillways generally provided to dispose off the surplus water from dam reservoirs.

20.
What is superelevation Explain with a sketch.

The radius of a horizontal circular curve is 100 ro, The design
speed is 50 kmph and the design coefficient of lateral friction is
0·15. Calculate the


Superelevation, if full lateral friction is acting.


Coefficient of friction needed, if no superelevation IS provided. I


Equilibrium superelevation, if pressure on the inner and I outer wheels should be equal. 10+20

21.
Write a detailed note on digestion and disposal of primary and secondary


t
sludge.
22. Write a note on elements of fire proof construction.

How can the ventilation and illumination of a room be improved?


What are the functions of


Septic tank


Soak well




Leach pit (ivl Manhole 8+10+12