(dce 411) - anucde2 (dce 411) unit i 2. a semi circular beam simply supported on the supports...

(DCE 411)

B.Tech. DEGREE EXAMINATION, JUNE 2010.

Final Year

Civil Engineering

Paper I — ADVANCED STRUCTURAL ANALYSIS — II

Time : Three hours Maximum : 75 marks

Answer question No. 1 is Compulsorily.

(15)

Answer ONE question form each Unit.

(4 × 15 = 60)

1. (a) What are the forces developed in a curved beam?

(b) How overturning of the curved beam is avoided?

(c) State Muller-Breslaw principle.

(d) What are the uses of influence line diagram?

(e) A uniformly distributed load of 12 kN/m, 6 m moves on a simply supported girder of span

10 m. Find the greatest reactive at a support.

(f) State any one theorem of plastic collapse.

(g) State upper bound and lower bound theorems.

(h) Define the following terms :

(i) shape factor

(ii) plastic beige.

(i) Write any two assumption made is plastic theory.

(j) How many mechanisms are formed is case of frames?

(k) Differentiate flexibility method from stiffness method.

(l) Write any four design steps to be followed in stiffness matrix method.

(m) State generalised co-ordinate system and give one example.

(n) State degree of static and Kinematic Indeterminacy.

(o) Define plastic moment capacity.

(DCE 411) 2

UNIT I

2. A semi circular beam simply supported on the supports equally spaced as shown in fig. 1.

Find the

(a) Total load on the semicircular beam

(b) Bending moment at a point p

(c) Maximum value of twisting moment.

Fig. 1

Or

3. Using Muller-Breslau principle, compute the influence line ordinates at 2 m intervals for

moment at mid-span of BC of the continuous beam ABC shown in fig. (2)

Fig. 2

UNIT II

4. Determine the collapse load for the beam shown in fig. (3).

Fig. (3)

Or

(DCE 411) 3

5. A Potal frame shown in fig. (4) has uniform section throughout. Determine the value of the

plastic moment of resistance ( )pM in terms of the load Wu @ collapse.

Fig. (4)

UNIT III

6. Analyse the continuous beam shown is fig. (5) by the flexibility matrix method.

Fig. (5)

Or

7. Analyse the frame shown in fig. (6) below, by flexibility method and draw bending moment

diagram.

Fig. (6)

(DCE 411) 4

UNIT IV

8. Analyse the continuous beam shown in fig. (7) by stiffness method and draw bending

moment diagram.

Fig. (7)

Or

9. Using stiffness method, find the displacement at A and B of the portal frame shown in fig. (8)

(use the advantage of symmetry) EI is constant.

Fig. (8)

———————

(DCE 412)


Final Year

Civil Engineering

Paper II — EARTHQUAKE ENGINEERING


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

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

1. (a) Define transient vibrations.

(b) Mention the types of vibrations.

(c) Define degrees of freedom.

(d) How ground motion excitation is done?

(e) What is dry fiction damping?

(f) Why vibration Isolation is required?

(g) How Coulomb damping is done?

(h) How damping is measured?

(i) What are the factors influencing the ground motion?

(DCE 412) 2

(j) Mention any four effects of liquefaction.

(k) What is the main importance of ductility in earthquake resistant design?

(l) Define Ductility ratio.

(m) What is the need for Base Isolation?

(n) What is the main methodology for seismic Retrofitting of R.C. Buildings?

(o) What are the methodologies available for the evaluation of existing buildings (Seismic Evaluation)?

UNIT I

2. (a) Explain briefly the types of prescribed Deterministic loading with the help of neat sketches. (10)

(b) Write a short notes about consequences of vibration. (5)

Or

3. The damped frequency of a system is obtained as 9.8 Hz from a free vibration test during the forced vibration test with constant exciting force on the same system, the maximum amplitude of vibration is found to be at 9.6 Hz. Find the damping factor for the system and its natural frequency.

(DCE 412) 3

UNIT III

4. (a) Explain briefly the factors influencing the

ground motion. (5)

(b) How we can identify the earthquake sources?

(5)

(c) Explain in detail the types of Seismic Base

Isolation system. (5)

Or

5. (a) What is seismic dampers? Explain in detail

the types of Dampers with the help of neat

sketches. (10)

(b) Write a short notes on measurement of

strong motion. (5)

UNIT III

6. Explain step-by-step procedure for lateral load

analysis of masonry buildings with the help of

neat sketches. (15)

Or

7. (a) Explain in brief about identification of

seismic damage in building components. (10)

(b) What are the main sources of weakness in

RC frame buildings? (5)

(DCE 412) 4

UNIT IV

8. (a) Write briefly the step-by-step procedure of

earthquake resistance design in case of steel

structures. (10)

(b) How repair and Retrofitting is done for

damaged steel structures? (5)

Or

9. (a) Explain in brief the types of liquefaction. (5)

(b) Describe the methods to reduce liquefaction

with the help of neat sketches. (10)

——————

(DCE 413)


Final Year

Civil Engineering

Paper III — WATER RESOURCES ENGINEERING — III

DESIGN AND DRAWING


UNIT I

1. Design a notch type canal drop with the following details.

Particulars U/S D/S

Full supply discharge 8 m3/s 8 m3/s

Bed level of canal 50 m 48 m

Full supply level 51.5 49.5

Bed width 8 m 8 m

Top width of banks 2 m 2 m

Top level of banks 52.5 52.5

Side slopes in cutting 1 : 1, filing 121 : 1

Hard soil for foundation = 48.5 m

Draw a rough sketch not to scale showing the obtained details.

Or

2. Design a canal regulator for the following data :

Hydraulic particulars Canal U/S Canal D/S

Full supply discharge 20 m3/s 16 m3/s

Bed width 15 m 15 m

Bed level 10 m 10 m

Full supply level 12 m 11.75 m

Top level of bank 13 m 12.75 m

Ground level at site GL = 9 m

Bottom level of bank = 15 m

Draw not to scale sectional elevation.

(DCE 413) 2

UNIT II

3. Design a direct sluice taking off from a maincanal irrigates 200 hectares of land with a

duty of 800.

Hydraulic particulars of main canal :

Full supply discharge = 500 cumecs

Bed width of canal = 20 m

Bed level of canal = 50 m

Full supply depth of water = 3 m

Half supply depth of water = 2 m

Ground level = 52 m

Top bund level = 54 m

Top width of bund = 5 m

The canal has 1 : 1 and 1 : 2 side slopes in cutting and in embankment respectively.

Hydraulic particulars of the distributary canal.

Bed width of distributary = 1 m

Bed level of distributary = 50.50

Full supply level = 52 m

Top level of bank = 52.75 m

Top width of bank = 1.0 m

Hard soil is available at 51.5 m. Draw section and elevation along the barrel.

Or

4. Design a surplus weir for minor tank forming a group of tanks with the following available

information.

Combined catchment area = 30 sq.km.

Catchment area intercepted by the upper tank = 20 sq.km.

Ryye’s constant or coefficient = 9

The earth bund has the following details

Top width = 2.4 m

Side slopes = 2 : 1 on both sides

(DCE 413) 3

Top level of bund = 100.5 m

Full tank level = 98.0 m

Maximum water level = 98.75 m

General ground level at the site is 97 m

Ground level slopes of to a level 96 m in a distance of 8 m

Provision is to be made to store water upto maximum water level in times of necessity

Draw half longitudinal section and half longitudinal elevation.

——————

(DCE 414)


Final Year

Civil Engineering

Paper IV — ENVIRONMENTAL ENGINEERING — II


Answer question No.1 is compulsory. (15 marks)


1. (a) What are the main sanitary works?

(b) Why it is necessary to collect, treat and dispose of the waste products of town?

(c) What are the various sewerage systems?

(d) Differentiate between sewage and drainage.

(e) What are the various types of storm water regulator used in a sewerage system?

(f) Write any two factors affect the quantity of sanitary sewage.

(g) How quantity of storm sewage is determined by Rational methods?

(h) What do you understand by velocity of flow?

(i) What materials can be used for constructing swages?

(j) What do you understand by the drop man hole?

(k) List out the various methods of sewage disposal.

(l) What do you understand by sewage sickness?

(m) Write any two main objects of treating sewage.

(n) What do you understand by ‘Sanitary land filling’ and how is it practised?

(o) What is meant by the term refuse?

(DCE 414) 2

UNIT I

2. (a) What are the aims and objects of sewage disposal? (5)

(b) Draw a general layout of a sewerage system and indicate on it a lateral, branch, main

and outfall senses. (5)

(c) Describe the method of estimating sanitary sewage of acity in detail. (5)

Or

3. (a) What do you understand by time of concentration? What is its importance in

determination of storm flow? How it is calculated? (7 21 )

(b) Write a short note on the laying of senses and their Jointing with the aid of neat

sketches. (7 21 )

UNIT II

4. (a) Why the examination of sewage is necessary? How the sewage sampling is done? How

bacteriological examination of sewage is done? (7 21 )

(b) Design a circular sewage sedimentation tank for a town having population of 45,000.

The average water demand is 150 liters / capita/ day. Assume that 70% water reaches

at the treatment with and the maximum demand is 2.7 times the average demand.

(7 21 )

Or

5. (a) What are the properties and quantity of sludges obtained from various sewage

treatment units? (7 21 )

(b) Sketch and describe the construction and working of an Imboff tank. (7 21 )

(DCE 414) 3

UNIT III

6. Determine the size of a high rate trickling filter for the following data :

(a) Sewage flow = 4.5 mld

(b) Recirculation ratio = 1.5

(c) BOD of raw sewage = 250 mg/l

(d) BOD removal in primary tank = 30%

(e) Final effluent BOD desired = 30 mg/l.

Or

7. (a) Write a detailed note on land treatment of sewage dealing with the chemical as well as

the engineering aspect of the process. (7 21 )

(b) What do you understand by self-purification property of a steam? Explain the factors

affecting the property. (7 21 )

UNIT IV

8. (a) What is sewage sludge? Explain all its characteristics and composition? Explain with

sketch the disposal of sludge by ‘Lagooning’ (or) by ‘Application on land’. (7 21 )

(b) Design a sludge digestion tank with the following data :

(i) Average flow of sewage = 70 × 106 litres/day

(ii) Total suspended solids is the raw sewage = 350 mg/litre.

(iii) Volatile suspended solids = 250 mg/litre.

(DCE 414) 4

(iv) Moisture content of the digested sludge = 87%.

Assume suitable data if necessary. (7 21 )

Or

9. (a) What are the different methods of disposal of solid refuse? Which one is most popular in

India? Explain the process in detail. (5)

(b) Explain briefly sludge intilization and sludge disposal. (5)

(c) Draw a sketch of a sludge digested and explain its working. (5)

———————

(DCE 415)


Final Year

Civil Engineering

Paper V — ESTIMATION AND VALUATION


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


1. (a) What is meant by Degree of accuracy?

(b) Give the different types of specifications.

(c) What is meant by scrap value?

(d) Write any two factors which affect the value of a property.

(e) Write one difference between earnest money deposit and security money deposit.

(f) What is measurement book?

(g) What are the different methods used in the estimation of the quantities of the

earthwork?

(h) Write any two merits of contracts, of any one type.

(i) What is sinking fund?

(j) What are outgoings in valuation?

(k) What is the difference between Gross income and Net income?

(l) Write a note on obsolescence.

(m) Write a note on Mortgage.

(n) What do you mean by Task or out-turn work?

(o) What is capitalized value?

(DCE 415) 2

UNIT I

2. Explain in detail about the estimation of various main items of work.

Or

3. (a) Briefly explain about the centre line method of building estimates.

(b) The arch of a culvert, subtend an angle of 120° span the at the centre of the arch is 5.00

m and the thickness of the arch is 50cm. The length of the arch. is 8.00m from face to

face. Calculate the quantities of arch masonry work, and cement plastering in the soffit

of arch.

UNIT II

4. At hill side a road is to be constructed on the original ground having a cross fall of 1 in 6. The

formation width of the road is 10m and the side slopes are in cutting 1 in 1 and in filling 1 in

1 21 . The depths of cutting at the centre line of the road for two adjacent sections at a

distance 30 m apart are 0.4m and 0.7m. Estimate the quantities of earth work in banking

and cutting for the above portion of road.

Or

5. The ground levels at various chainages along the centre line of a proposed road are under.

Chainage : 21 22 23 24 25

RL of Ground (m) 180.50 183.36 185.52 187.10 186.50

The ground has a uniform cross slope of 1 in 10. The chainage is 30m long. The road

formation is proposed at a uniform gradient passing through GL, at end chainages.

Formation width of road is 8m side slope of cutting as 1:1. Estimate the quantity of

earthwork for the proposed road section in a tabular form.

UNIT III

6. Write down detailed specifications for the following items of work :

(a) Wood work for door and windows.

(b) Size stone masonry in CM (1 : 6)

(c) RCC linters and columns (1 : 2 : 4).

Or

(DCE 415) 3

7. Workout the unit rates for the following items of work :

(a) Cement concrete (1 : 4 : 8) in foundation.

(b) Plastering in CM (1 : 4), 12 mm thick.

(c) First class brick work in CM (1 : 6).

UNIT IV

8. (a) Draft a tender notice for the construction of an office building with plinth area of

15,000 sq.m. (10)

(b) Explain about the contracting systems. (5)

Or

9. (a) What do you mean by valuation? Write a detailed explanatory note on factors affecting

valuation. (7 21 )

(b) What is meant by Depreciation? Explain various methods for estimating cost

depreciation. (7 21 )

———————

(DCE 416 (A))


Final Year

Civil Engineering

PRE STRESSED CONCRETE


Answer Question No.1 compulsorily. (15 marks)


1. (a) How the shrinkage of concrete in prestressed members occurs?

(b) What is the main use of light - weight aggregate prestressed concrete?

(c) List out the various types of devices used to tensioning steel is prestressing systems.

(d) What are the basic assumptions made while analysis of prestress and bending?

(e) Define pressure line as Thrust line.

(f) How the stresses in tendons resist the prestressing force?

(g) What is meant by cracking moment?

(h) List out the losses in predestining systems.

(i) Why suitable control on deflections is very essential?

(j) List out various types of flexual failures encountered in prestressed concert members.

(k) Mention the different types of shear walks.

(l) When we can say the member is subjected to prove torsion in case of prestressed

concrete members?

(m) Define transmission length in pretensioned members.

(n) Define Bond stresses in case of pretensioned members.

(o) How the stress-distribution nature will be in case of end block of a post-tensioned

pressed concrete element?

(DCE 416 (A)) 2

UNIT I

2. (a) Write the advantages of pre stress concrete. (5)

(b) List out the different methods of protersioning methods and explain in detail any two

methods with the help of neat sketches. (10)

Or

3. A post-tensioned concrete beam, 150 mm wide and 350 mm deep, is pre-stressed by three

cable, each with a cross-sectional area of 50mm2 and with an initial stress of 1200N/mm2. All

the three cables are straight and located 100 mm from the soffit of the beam. If the modular

ratio is 6, calculate the loss of stress in the three cables due to elastic deformation of concrete

for all the following cases.

(a) Simultaneous tensioning and anchoring of all the three cables and

(b) Successive tensioning of the three cables, one at a time.

UNIT II

4. A rectangular concrete beam 250 mm wide by 300 mm deep is pre-stressed by a force of

540KN at a constant eccentricity of 60 mm. The beam supports a concentrated load to 70KN

at the centre of a span of 3m. Determine the location of a pressure line at the centre, quarter

span and support sections of the beam. Neglect the self-weight of the beam.

Or

5. (a) List out the salient factors which influencing Deflections in case of presstressed

concrete members. (5)

(b) A concrete beam with a cross-sectional area of 32 × 103 mm2 and radius of gyration of

72mm is prestressed by a parabolic cable carrying an effective stress of 1500 N/mm2.

The span of the beam is 8m. The cable, composed of 6 wires of 8mm diameter, has an

eccentricity of 50mm at the centre and zero at the supports. Neglecting all losses, find

the central deflection of the beam as follows.

(i) Self – Weight + Prestress, and

(ii) Self – Weight + Prestress + live load of 2 KN/m. (10)

(DCE 416 (A)) 3

UNIT III

6. (a) Explain briefly the general concepts of elastic design in case of prestressed – concrete

sections for flexure. (7 21 )

(b) What are the preliminary design considerations to be considered incase of elastic design

of prestressed – concrete sections for flexure. (7 21 )

Or

7. Make a preliminary design for section of a prestressed – concrete beam to resist a total

moment of 450 KN-m. The overall depth of ‘T’ section is 920mm and flange width 600 mm,

thickness of flange and web is 100 mm. The effective prestress for steel is 900 MPa, and

allowable stress for concrete under working load is 15 MPa.

UNIT IV

8. A pre tensioned beam of rectangular section, 200 mm wide by 450 mm deep, is prestressed by

12 wires of 5 mm diameter located at an effective eccentricity of 150 mm. The maximum

shear force at a particular section is 120 KN. If the modular ration is 6, calculate the flexual

bond stress developed assuming.

(a) The section as un cracked

(b) The section as cracked.

Or

9. (a) Explain stress distribution in End block with the help of neat sketches. (5)

(b) The end block of a prestressed concrete beam, 150 mm wide and 250 mm deep, supports

an eccentric prestressing force of 150 KN, the line of action of which coincides with the

button Kern of the section. The depth of the anchor plate is 50 mm. Estimate the

magnitude and position of the principal tensile stress on a horizontal plane passing

through the centre of the anchorage plate. (10)

———————

(DCE 416 B)


Final Year

Civil Engineering

Paper VI — STRUCTURAL DYNAMICS



(1 × 15 = 15)

Answer ONE question form each Unit.

(4 × 15 = 60)

1. (a) What are degrees of freedom (or) generalised co-ordinates?

(b) Distinguish between static and dynamic degrees of freedom.

(c) What are two types of dynamic forces due to Newton’s second law?

(d) In structures how will you classify vibration?

(e) What is single degree of freedom?

(f) What is meant by Logarithmic decrement?

(g) What is meant by response?

(h) Define dynamic load factor magnification factor.

(i) Mention the important methods to determine the damping of an SDOF system subjected

to free vibration.

(j) Define Impulsive loading of SDOF system.

(k) Write Duchamets Integral of Impulsive loading.

(l) What is the difference between ‘shear building’ and ‘shear walled building’?

(m) How frequency is affected in shear building?

(n) What is meant by coupled stiffness matrix?

(o) For a stable system, how many real modes are present?

UNIT I

2. Derive the general governing differential equation for an undamped for vibration of an

elastic simple degree of freedom system by the Newton method.

Or

3. What are the different types of damping? Explain briefly Coulomb Damping with neat

sketch.

(DCE 416 B) 2

UNIT II

4. The damped frequency of a system is obtained as 9.8 Hz from a free vibration test during the

forced vibration test with constant exciting force on the same system, the maximum

amplitude of vibration is found to be at 9.6 Hz. Find the damping factor for the system and

its natural frequency.

Or

5. Use the Duhamel integral to determine the response of an undamped SDOF system to a

blast loading specified by the triangular pulse shown in fig. (1). Obtain the response

expressions that are valid for tdt < and for tdt > . The system is initially at rest.

Fig. (1)

UNIT III

6. Derive the Rayleigh formula in terms of deflections for finding the fundamental frequency of

a discrete mass system.

Or

7. Derive the natural frequency and the fundamental mode shape of the chimney given by

fig. (2) using Rayleigh’s method, given by following.

Fig. (2)

Diameter at to = 15 m

Diameter at bottom = 25 m

Modulus of elasticity of concrete = 3.6 × 105 N/mm2

Thickness at tops = 0.25 m

Thickness at bottom = 1.20 m

Specific gravity of concrete = 2.5

(DCE 416 B) 3

UNIT IV

8. Obtain the natural frequency and mode shapes of the three degree freedom system as shown

is fig. (3).

Fig. 3

Or

9. Explain with suitable sketches the analysis and design procedure for evaluating the bending

moments and shears in multi strayed framed buildings using response spectrum method

given is IS = 1893 (Modal super position method).

————————

(DCE 416 C)


Final Year

Civil Engineering

Paper VI — FINITE ELEMENT ANALYSIS



(1 × 15 = 15)

Answer ONE question from each Unit.

(4 × 15 = 60)

1. (a) What are the various steps involved in the finite element analysis?

(b) What is the need to study finite element method?

(c) State generalized Hooke’s law.

(d) Define stiffness matrix.

(e) How the element shapes are classified?

(f) Define shape function.

(g) State the convergence requirements of polynomial shape functions.

(h) Why polynomial shape functions should satisfy geometric isotropy / geometric invariance

requirement?

(i) Differentiate between the terms lumped loads and consistent loads.

(j) Differentiate between a bar element and a truss element.

(k) Define plane stress and plane strain.

(l) What is the main concept of Isoparametric formation in case of finite element method?

(m) Define super parametric and subparametrics in case of FEM.

(n) What are the basic theorems in Isoparametric concept?

(o) Write any few advantages of Isoparametric elements.

UNIT I

2. (a) Explain briefly the linear constitutive equations in case of FEM. (10)

(b) Clearly point out the situations is which FEM is preferred over other methods. (5)

Or

(DCE 416 C) 2

3. Determine the shape functions for a two nodes bar element using

(a) Cartesian co-ordinate system.

(b) Local co-ordinate system ranging from 1 to zero.

UNIT II

4. (a) State and explain the three basic laws on which Isoparametric concept is developed. (5)

(b) Write short notes on :

(i) Uniqueness of mapping of Isoparametric elements.

(ii) Gaussian quadrature integrates technique. (10)

Or

5. For the element shown in fig. (1), assemble Jacob matrix and strain displacement matrix for

the Gauss point (0.37735, 0.37735).

Fig. (1)

UNIT III

6. The rectangular element shown in fig. (2) is formed by assembling four CST elements.

Compute the stiffness matrix of the element after static condensation.

Fig. (2)

Or

(DCE 416 C) 3

7. Compute the stiffness matrix for the CST element shown in Fig. (3)

Fig. (3)

UNIT IV

8. (a) Explain briefly patch test and its importance incase of plane stress and plane strain

analysis. (7 21 )

(b) Why finite element discretization of reinforced cencute structures essentially depends on

the pressence of reinforcement? (7 21 )

Or

9. Find the nodal displacement and element stresses in the propped beam shown in fig. (4).

Idealize the beam into two CST elements as shown in fig. Assume plane stress condition.

Take µ = 0.25, E = 2 × 105 N/mm2, Thickness = 15 mm.

Fig. (4)

———————

(DCE 421)


Final Year

Civil Engineering

Paper VII — ADVANCED DESIGN OF STRUCTURES



(1 × 15 = 15)


(4 × 15 = 60)

1. (a) What type of stresses are adopted in the reinforcement in order to avoid tensile cracking

of concrete of the tank wall?

(b) Mention the different types of Joints adopted in tanks.

(c) What type of stresses are caused in a spherical done?

(d) Write any four classification of Bridges.

(e) What is the importance of Impact factor in case of Road bridges?

(f) Write the classification of culverts based on the construction of the structure.

(g) Why Pigeaud’s theory is commonly adopted for design of Deck slab?

(h) What are the materials to be considered to construction of piers and Abutments?

(i) Define sub structure in case of bridges.

(j) What type of foundations are used in bridge structures?

(k) What is the importance of bearings in case of bridges?

(l) What is the main purpose of Grip length is case of road bridges?

(m) What are the rational methods used to estimate the load distribution in case of bridges?

(n) What are the loads to be considered while designing road bridges?

(o) Mention the four types of standard loadings for which road bridges are designed.

(DCE 421) 2

UNIT I

2. Design an Intze tank of 10,00,000 litres capacity. The height of staging is 18 m upto the

bottom of tank. The bearing capacity of soil may be assumed to be 180 kN/m2. Assume the

intensity of wind pressure as 1600 N/m2. Use M20 cerate and HYSD bar.

Or

3. Explain briefly (step-by-step), the design of stagging for over head tanks.

UNIT II

4. Explain in detail the components of a bridge with neat sketches.

Or

5. Design an R.C. slab culvert for the following data :

Culvert to be an state Highway

Width of bridge = 14.0 m

No footpath provided.

Conditions of exposure ; moderate’

Materials : concrete grade M25 and HYSD bar.

Clear span = 6.0 m

Height of vent = 3.0 m

Depth of foundation = 1.40 m

Wearing course 60 mm thick as phallic concrete.

UNIT III

6. Design a T-beam bridge for the following data :

(a) Clear width of roadway = 7.0 m

(b) Effective span of bridge (centre to centre of bearings) = 15 m

(c) Live load = one lane of IRC class AA (a) two lanes of IRC class A loading

(d) Average thickness of wearing coat = 75 mm

(e) Grade of concrete = M25

(f) Grade of steel reinforcement = S 415.

Or

(DCE 421) 3

7. A pier shown in fig. (1) supports the deck forming a major highway. The various forces acting

on the pier are listed below.

Dead loads from each span = 200 KM

Reaction due to live load G one span = 1000 KN

Brailing forces = 140 KN

Wind pressure on pier = 2.4 KN/m2

Material of pier = 1:3:6 cement concrete

Density of concrete = 24 KN/m3.

Calculate the stress developed at the base of the pier due to the following cares :

(a) Dead load and self-weight of pier.

(b) Effect of buoyancy.

(c) Due to eccentricity of live load.

(d) Due to longitudinal braking forces.

(e) Due to wind pressure.

Estimate the maximum and minimum stresses developed at the base of pier due to the

critical combinations of the various loads.

UNIT IV

8. Mention the classification of bridge bearings and explain any two types of bearings with neat

sketches.

Or

(DCE 421) 4

9. Design a well foundation for the pier of a major highway bridge to suit the following data :

Internal diameter of well = 3.0 m

Type of soil state = Clayee (K = 0033)

Depth of well = 25 m below bed level

Materials M – 20 grade concrete

Fe 415 grade HYSD bar.

————————

(DCE 422)


Final Year

Civil Engineering

Paper VIII — CONSTRUCTION MANAGEMENT



(1 × 15 = 15)


(4 × 15 = 60)

1. (a) Write the different stages involved in a project management.

(b) Write any two objectives of any project.

(c) Define event and write the types involved.

(d) What is the purpose of using dummies?

(e) What is meant by slack?

(f) Write the formula for calculating expected time and explain the terms involved in it.

(g) Explain resource levelling in brief.

(h) Write any two factors affecting cost owning and operating the equipment.

(i) What is the significance of benefit cost ratio?

(j) What do you mean by safety budgeting?

(k) How can you define equity?

(l) When do you call a particular period as pay back period?

(m) What are the various communication tools used in management information system in

construction?

(n) What is a mile stone chart?

(o) What are the basic properties of a event?

(DCE 422) 2

UNIT I

2. (a) What is a bar chart? What are the steps involved in the construction of Barcharts and

what are its limitations? (10)

(b) Explain the main causes of project failure. (5)

Or

3. (a) What is meant by scheduling? Explain the various methods of scheduling. (10)

(b) Explain the factors affecting job layout. (5)

UNIT II

4. (a) What do you mean by CPM? What are the time estimates used in CPM and explain their

significance ? (10)

(b) Write the differences between PERT and CPM. (5)

Or

5. (a) Explain in brief the steps involved in the optimization of cost. (5)

(b) For a PERT network, the time estimates are given below. Draw the network and

determine the path. Time durations are in days. (10)

Activity 1-2 1-6 2-3 3-5 2-4 4-7 5-8 6-7 7-8

to 3 3 6 5 2 3 1 3 4

tm 6 8 12 11 5 6 4 9 19

tp 15 14 30 17 8 15 7 27 28

UNIT III

6. (a) Explain in detail about Resource smoothing.

(b) Briefly explain the objectives of material management.

Or

7. (a) What are the functions of material management department?

(b) What are the factors affecting the selection of machinery?

(DCE 422) 3

UNIT IV

8. (a) What are the various measures that the taken for the prevention of fires in construction

industries?

(b) Explain the project management information system concept.

Or

9. (a) Explain in detail about the fault free analysis.

(b) Briefly explain the quality assurance techniques.

—————————

(DCE 423)


Final Year

Civil Engineering

Paper IX — TRANSPORTATION ENGINEERING — II


Answer question No. 1 compulsorily.

(1 × 15 = 15)


(4 × 15 = 60)

1. (a) How the transportation modes are classified?

(b) Compare Railway transportation with Road

Transportation.

(c) What is the characteristics of railway

transportation?

(d) Define gauge of a railway track.

(e) Why the uniformity of gauges is desirable in

any country?

(f) What do you understand by a railway track

and a permanent way?

(g) What is meant by wear of rails?

(DCE 423) 2

(h) What do you mean by buckling of rails?

(i) What is the necessity of welding the rails?

(j) What are the desirable qualities of good

sleepers?

(k) What is the necessity of geometric design of

a railway track?

(l) What are the objects of signalling?

(m) Write any two zoning laws in case of airport

obstruction.

(n) What is the necessity to provide Drainage

systems Airport Planning and layout?

(o) Define dredging.

UNIT I

2. (a) Draw a typical cross-sections of a permanent

way. Discuss in brief the basic functions of

various components of the railway track.

(7 21 )

(b) Explain the characteristics of various rail

types in tabular form with regard to their

performance in the railway track. (7 21 )

Or

(DCE 423) 3

3. (a) Discuss different types of rail-joints with the

help of neat sketches and give their merits

and limitations. (7 21 )

(b) Discuss the factors on which sleeper density

depends and how the sleeper density is

expressed. (7 21 )

UNIT II

4. (a) How do you define the super elevation? What

are the objects of providing super elevation

on curves of a railway track? (7 21 )

(b) The railway gradient has been fixed as 1 is

200 on a section of B.G. track. What should

be the compensated gradient when a 4° horizontal curve is also to be introduced on

this railway gradient? (7 21 )

Or

5. (a) Draw a neat diagram of simple right-hand

(or) left-hand turnout and show its various

component parts? Explain the working

principle of the turnout. (6)

(b) Explain and discuss the following by means

of sketches.

(i) Way side stations (9)

(ii) Junction stations

(iii) Terminal stations.

(DCE 423) 4

UNIT III

6. (a) Write a brief note on development of air transportation system in India. (7 2

1 )

(b) Discuss briefly the classification of obstructions. (7 2

1 )

Or

7. (a) Write a brief note on the following with neat sketches : (9)

(i) Runway orientation.

(ii) Approach zone.

(iii) Runway geometric design.

(b) Explain in detail the design methods of flexible and rigid pavements. (6)

UNIT IV

8. (a) What are the factors to be studies and scrutinized in harbour planning? (7 2

1 )

(b) Write a brief note on classification of ports. (7 2

1 )

Or

9. (a) Why is it necessary to provide facilities like aprons, transit sheds and warehouses at the ports? Explain with neat sketches. (7 2

1 )

(b) State the types of dredging devices commonly used in harbour engineering practice and explain with a neat sketch the most efficient of these. (7 2

1 )

——————

(DCE 424 B)


Final Year

Civil Engineering

Paper X — ADVANCED ENVIRONMENTAL ENGINEERING


Answer Question No. 1 compulsorily.

(1 × 15 = 15)


(4 × 15 = 60)

1. (a) What are the factors affecting self-purification of polluted steams?

(b) What are the main characteristics of the treatment plant effluents?

(c) Mention the effects caused due toxic substances present is the industrial wastes.

(d) Why Girt Chamber is provided in primary treatment of waste water plants?

(e) Why low cost waste treatment systems preferred when compaired to conventional

biological treatment methods?

(f) When Aerated Lagoons are preferred in the case of low cost waste treatment systems?

(g) Why the industrial waste water requires treatment?

(h) What type of treatment requires for pulp and paper mill wastes?

(i) What are the sources of diary wastes?

(j) What are the harmful effects of polluted air on human beings?

(k) What is meant by smog?

(l) What is the main concept in biological waste treatment?

(m) Define a wind rose.

(n) What are the sources of noise pollution?

(o) What are the main principles of air pollution abatement?

UNIT I

2. (a) Write a brief note on characteristics of the treatment plant effluents in case of stream

sanitation. (5)

(b) Explain self-purification of steams and indicate how sun-light helps in such purification. (5)

(c) Explain the importance of study of reoxygenation and deoxygenation in problems of

steam sanitation. (5)

Or

(DCE 424 B) 2

3. Design a continuous flow type oxidation ditch to treat a domestic sewage flow of 5 MLD.

Following values of the parameters and conditions may be assumed.

Total 5 day 20° C BOD of the raw sewage = 150 mg/lit

Desired total 5 day 20° C BOD at the effluent = 20 mg/lit

Suspended solids in the raw sewage = 230 mg/lit

Desired suspended solid at the effluent = 30 mg/lit

Mixed liquor suspended solids = 5000 mg/lit

Growth yield co-efficient = 0.55

Micro organism decay co-efficient = 0.03

Mean all residence time = 15 days.

UNIT II

4. (a) Explain briefly the different processes of treatment of industrial wastes. (721 )

(b) Draw neatly the flow diagram for complete treatment of sugar mill waste and explain. (721 )

Or

5. (a) Write a brief note on treatment of the dairy wastes. (5)

(b) Draw the flow diagram for treatment of waste of a typical pulp mill and explain. (10)

UNIT III

6. (a) Write the overall objectives of the biological waste treatment. (721 )

(b) Explain with a neat sketch the biological denitrification process. (721 )

Or

7. (a) What are the types and sources of particulate matte causing air pollution? Briefly

explain them. (721 )

(b) Explain briefly the various methods adopted for determining the health effects of air

pollutants on people. (721 )

UNIT IV

8. (a) With the help of neat sketches, explain the working of

(i) Wind speed recorder.

(ii) Wind direction recorder. (721 )

(b) Describe with neat sketches, how different atmospheric conditions give rise to different

kinds of plumes. (721 )

Or

(DCE 424 B) 3

9. (a) List the various types of collection equipment for particulates and explain with a neat

sketch, the principle, construction, and working of a settling chamber. How can its

efficiency be improved? (10)

(b) Explain briefly the effects of noise pollution. (5)

——————

(DCE 424 F)


Final Year

Civil Engineering

Paper X — REMOTE SENSING AND PHOTO

INTERPRETION


Answer question No. 1 compulsorily.

(1 × 15 = 15)


(4 × 15 = 60)

1. (a) Define Remote sensing.

(b) Write Rayleigh's criterion of roughness of the

surface and explain the various terms in it.

(c) Space borne sensors are used to assist which

type of activities?

(d) What is meant by IFON?

(e) What is the useful spectral range ( µ m) for

mercury .doped germanium?

(f) What is the purpose of launching NIMBUS

satellites?

(DCE 424 F) 2

(g) How refers to which quantity on an image?

(h) Give the formula for finding Target number.

(i) Give the main classification of spatial

pattern recognition.

(j) Write any two activities that any urban

planners uses geographic information for.

(k) What is the purpose of using a thematic

mapper?

(l) Give the names of any two Indian remote

sensing satellites.

(m) What do you mean by Ground truth?

(n) What is meant by black body radiation?

(o) Write the name of any two input devices in

GIS.

UNIT I

2. (a) Briefly explain electromagnetic spectrum

along with the pictorial representation.

(b) Explain the spectral signatures of typical

features of earths surface.

Or

3. Explain in detail about the four geometrical

characteristics that are observed in a radar image.

(DCE 424 F) 3

UNIT II

4. (a) What are the advantages of land sat

imagery?

(b) Write a brief note on Aerial Photo

grammetry.

Or

5. (a) Explain in detail the various pre-processing

methods.

(b) Write a brief note on Image classification.

UNIT III

6. Explain in detail the application of remote sensing

in water resources evaluation.

Or

7. Explain digital analysis of landsat data for forest

and vegetation classification and biomass

estimation.

UNIT IV

8. (a) Write the differences between Raster Data

Representation and Vector Data

Representation.

(b) Briefly explain the different stages of GIS

Data Modelling.

Or

(DCE 424 F) 4

9. (a) Explain in detail about data manipulation

and analysis operation in GIS.

(b) What are the various data output products

obtained?

————————

(dce 411) - anucde2 (dce 411) unit i 2. a semi circular beam simply supported on the supports...

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