second year department of civil engineering second year · while marking layout on ground for a...

Second Year DEPARTMENT OF CIVIL ENGINEERING

Sanjay Ghodawat Polytechnic, Atigre Third Sem 1

Second Year Diploma in

Civil Engineering Third Semester

MSBTE Question Papers

Sr.

N

o.

Course/

Semester/

Master

Subject Subject

ABBR

Subject

Code CO

Pag

e

No.

1

CE - 3- G

Building

Construction BCO 17308 CO 202

2 Building Drawing BDR 17309 CO 203

3 Surveying SUR 17310 CO 204

4 Mechanics of

Structures MOS 17311 CO 205



Building Construction - 17308

Summer 2014 17308

21314

3 Hours / 100 Marks Seat No.

Instructions – (1) All Questions are Compulsory.

(2) Illustrate your answers with neat sketches wherever necessary.

(3) Figures to the right indicate full marks.

(4) Assume suitable data, if necessary.

(5) Mobile Phone, Pager and any other Electronic

Communication devices are not permissible in Examination Hall.

Marks

1. a) Attempt any SIX of the following: 12

i) Define foundation.

ii) Enlist any four tools and plants used for stone masonry.

iii) State the functions of arch.

iv) Define the term ‘Newel Post’ with reference to stairs.

v) Enlist any four types of stairs.

vi) Write any two objects of pointing.

vii) What are the various types of crack ?

viii) Define ‘Prestressed concrete’.

b) Attempt any TWO of the following: 08

i) Differentiate between load bearing structure and framed

structure.

ii) Enlist any eight precautions which are required to be taken

while marking layout on ground for a structure.

iii) What are the various methods to dewater deep excavation ?

Explain any one.

2. Attempt any FOUR of the following: 16

a) Enlist various building components of superstructure. Explain

any one.

b) What are the general principles of earthquake resistant

structures

while planning ?

c) Explain timbering and strutting for foundation trench.

d) What are the requirements of good foundation ?

e) Enlist any four precautions to be taken while constructing

foundation in black cotton soil.

f) Enlist any four terms used in stone masonry. Explain any one.




a) Which type of stone masonry will you suggest for pitching of

earthen dam ? Why ?

b) Enlist various types of doors. Explain any one.

c) Give the reasons to justify the following statements.

i) Normally the bottom and lock rails are made wider than top rails.

ii) In ledged and braced doors, the braces are made to incline

upwards from the hanging edge.

d) Sketch neatly large view of stair to show details of the

following:

i) Nosing ii) Baluster iii) Waist iv) Tread

e) State any four types of floors. Explain any one.

f) Differentiate between pitched roof and flat roof.


a) Give the reasons for the following:

i) The wooden floor is provided in the auditoriums.

ii) For multi-storeyed building, a flat roof is the only choice.

b) Describe the procedure for carrying out the plaster in cement

mortar in two coats.

c) Enlist any four types of pointing. Explain any one.

d) Which type of paint is suitable for exposed rough surface ? Why ?

e) What are the requirements of a good formwork ?

f) Describe the procedure for water proofing of sanitary block after

construction.


a) How will you prevent subterranean termites ?

b) What are the various methods of prestressing the concrete ?

Explain any one.

c) State any four types of shallow foundation. Explain any one.

d) What are the advantages and disadvantages of ready-mix-

concrete ?

e) Explain meaning and application of ‘Tremix concreting’.

f) Explain the applications of Roller compacted concrete and High

impact resisting concrete.

6. Attempt any TWO of the following: 16

a) Explain under-reamed piles with respect to meaning, sketch,

advantages and disadvantages.

b) Explain any four types of bonds in brickwork with neat sketch.

c) Explain prefabricated construction with respect to meaning, types,

advantages and disadvantages.



Summer 2015 17308

21415

3 Hours/100 Marks Seat No.

Instructions : (1) All questions are compulsory.




MARKS

1. A) Attempt any six questions. 12

a) Define ‘tread’.

b) Enlist means of vertical communication.

c) Define ‘plastering’.

d) State two purposes of termite proofing.

e) Define ‘workability of concrete’.

f) What do you mean by steel fibre reinforced concrete ?

g) Define ‘scaffolding’.

h) Suggest suitable size of door for

i) WC ii) Living room.

B) Attempt any two questions : 8

a) What is necessity of dewatering of foundation trenches ?

b) What is DPC ? What is its necessity ?

c) What are the various tools and plants used for excavation of

foundation ?

2. Attempt any four questions : 16

a) Explain the term timbering and strutting foundation trench.

b) Draw flow diagram showing classification of foundation.

c) Draw neat labelled sketch of ‘raft foundation’.

d) Draw neat labelled sketch of ‘pile foundation’.

e) Suggest suitable type of foundation for

i) Marshy land ii) Black cotton soil.

f) What are the requirements of good stone masonry ?


a) Explain expansion joint in SM with respect to purpose and

procedure.

b) Differentiate with respect to four points Brick Masonry and

stone Masonry.

c) Draw neat labelled sketch showing component parts of

scaffolding.



d) Draw neat labelled sketch of flush door.

e) Explain procedure for replacing glass of existing sliding

window.

f) List various components of building and define ‘composite

structure’.


a) List four precautions to be taken while marking layout on

ground.

b) Define foundation and enlist two requirements of good

foundation.

c) Mention suitability and draw neat labelled sketch of

bifurcated staircase.

d) Mention suitability of each type of floor finish with reason

i) Chequered tiles ii) Caddappa.

e) Draw neat labelled sketch of lean to roof.

f) Explain concrete floor w.r.t. construction and suitability.


a) Explain procedure of repainting after repairs.

b) Explain pointing with respect to necessity, types and

procedure.

c) Enlist types of painting with suitability of each type.

d) Draw neat labelled sketch of formwork for beam.

e) Explain waterproofing with respect to necessity and

importance.

f) Suggest suitable maintenance procedure for the following :

i) leakage in slab ii) ant attack in door frame

iii) cracks in wall iv) settlement of building.

6. Attempt any two questions : 16

a) Define prefabricated structures. Mention any four advantages

and disadvantages.

b) Explain Tremix concrete method w.r.t.

i) Definition ii) Procedure

iii) Application iv) Equipments used.

c) i) Enlist soil reinforcing techniques and explain any one.

ii) ‘Roller compacted concrete’ is a special type of concrete.

Justify the statement.

_________________



Building Drawing - 17309

Summer 2014 17309

21314



(2) Answer each next main question on a new page.




MARKS

1. A) Attempt any three questions : (4×3=12)

a) Draw graphical symbols for following as per IS 962-1989.

BM, Concrete, Woodwork, Glass

b) Draw any four types of lines used in Civil Engg. Drawing.

c) Define FSI. How you will calculate plinth area from carpet area

?

d) Specify minimum dimensions of following units of residential

building.

Living room, Bedroom, Kitchen, WC.

B) Draw to a suitable scale a line plan of post office building. Label all

units with their dimensions. Clearly indicate positions of openings. 8

2. Fig No. 1 : Shows a line plan of residential building. Draw to a scale of

1:50 the following views. Show all dimensions and label the units. Use

appropriate symbols for room furnishings such as WB, WC, Kitchen Sink,

Otta, Cupboards etc.

i) Developed plan 12

ii) Elevation 6

iii) Section along AB 10

Use following construction notes –

Depth of foundation 1200 mm below GL

Plinth height above GL 600 mm

Height of bottom of slab from FL = 3200 mm

Slab thickness – 150 mm

Chajja projection – 750 mm

Super structure in BBM with all walls 300 mm thick.

Assume additional data if required.



Fig. No. 1

3. Attempt any three questions : (8×3=24)

a) Draw neat sketch showing RCC components of lintel with 1 :

20 scale.

b) Prepare schedule of openings in the standard format and

area statement for building in Q. No. 2.

c) Explain any four important principles of planning.

d) i) Write dimensions of rise and tread for residential and public

building.

ii) Enlist types of perspective drawing and specify two principles

used in perspective drawing.

4. Attempt any two questions : (8×2=16)

a) Explain important rules and byelaws of sanctioning authorities

for construction in rural area.

b) Enlist units of primary health centre and write minimum

dimension of each unit including sanitary unit.

c) Draw foundation plan for 2 BHK residential building. Assume

suitable sizes.



Use scale 1 : 50 (Building load bearing type).

5. Draw to a suitable scale two point perspective drawing of the object

shown below in Fig. No. 2. Assume eye level 1.5 m above GL and

station point at 3.0 m from PP. Retain all construction lines. 12

Fig. No. 2

_________________



Summer 2015 17309

21415


.





(5) Use of Non-programmable Electronic Pocket Calculator is

permissible.

(6) Mobile Phone, Pager and any other Electronic Communication

devices are not permissible in Examination Hall.

MARKS

1. A) Attempt any three : 12

a) Draw graphical symbols as per IS 968-1989 :

i) Glass ii) Wood work

iii) Brick work iv) Concrete.

b) Draw any four types of line used in drawing.

c) Define :

i) Roominess ii) Privacy.

d) State minimum dimensions for :

i) Kitchen ii) Garage

iii) Bathroom with attached W.C.

iv) W.C.

B) Draw a line plan of a college canteen. Approximate built up area is

200 sq.m. 8

2. Figure No. 1 shows line plan of a residential building. Draw to a scale

of 1 : 50 the following views. Show all dimensions and label parts.

i) Developed plan. 12

ii) Section along AB. 8

iii) Front elevation. 8

a) Depth of foundation below G.L – 1.10 m

b) Plinth height above G.L – 600 mm

c) Height of bottom of slab from floor level – 3000 mm

d) Slab thickness – 125 mm

e) Chajja projection – 600 mm

f) Thickness of all walls – 150 mm

g) Assume suitable positions for windows.

Assume suitable any other data, if required.



Figure No. 1 (Q. No. 2 and Q. No. 1)

3. Attempt any three : 24

a) Draw to a suitable scale foundation plan for a building shown

in figure no. 1 Q. No. 2 footing size C1 = 900 × 1200 ; C2 = 900 ×

1500.

b) Write suitable construction notes for the building shown in

figure no. 1.

c) Define built up area and carpet area. Calculate built up area

of a building show in figure no. 1. Also calculate carpet area for

same building.

d) What is the purpose of perspective drawing ? What do you

mean by a station point and vanishing point in perspective

drawing ? Also state the principles used in perspective drawing.



4. Attempt any two : 16

a) Draw a plan and section of a single flight of a R.C.C. stair case

from following data :

i) Number risers – 10 of 150 mm height.

ii) Number of trades – 9 of 275 mm width.

iii) Width of stair case is 1000 mm.

iv) Landing at top is 1000 mm × 1000 mm.

v) Waist slab 125 mm thk.

b) Explain with example the aspect and prospect. State your

comments on aspect of a residential building shown in figure No.

1 (Q. No. 2).

c) What do you mean by F.S.I. ? Calculate F.S.I. remaining and

F.S.I. consumed for the building shown in figure No. 1. The plot is

15 M × 25 M. F.S.I. permissible in this case is one.

5. a) Draw to a suitable scale a two point perspective drawing for

pedestal shown in Fig. 2. Assume eye level 1.4 M. above G.L. 12

Figure No. 2 (Q. No. 5. a)

OR

b) Draw to a suitable scale a two point perspective assuming eye level

1.4 M. for a drawing shown in Figure No. 3.

Figure No. 3 (Q. No. 5. b)

Figure No. 2 (Q. No. 5. a) Figure No. 3 (Q. No. 5. b)

_______________________



Surveying - 17310

Summer 2014 17310

21314


Instructions – (1) All Questions are Compulsory.

(2) Answer each next main Question on a new page.




(6) Use of non-programmable Electronic Pocket Calculator is

permissible.



Marks

1. a) Attempt any SIX of the following: 12

i) State the primary classification of survey.

ii) State different objectives of survey.

iii) Define ranging and list the instrument required for ranging.

iv) Write the bearing of line AB and line CD.

1)

2)

v) Write any four personal errors in compass survey.

vi) List the accessories required for plane table survey.

vii) Define Datum line and Bench Mark.

viii) Describe in brief negative staff reading.

b) Attempt any TWO of the following: 08

i) Explain the principles of surveying.

ii) State the uses of survey.

iii) Explain linear measurement by pacing and by speedometer.




a) Differentiate between Direct Ranging and Indirect Ranging.

b) Explain the process of chaining on sloping ground by stepping

method with neat sketch.

c) A 30M chain was found to be 5cm. too short after chaining

1200M. It was found to be 10cm too short after chaining

2100M. If the chain was correct before commencement of the

work find the true distance.

d) State the points to be considered while selecting survey

stations.

e) Draw the sketch of chain triangulation and label different

lines.

f) Explain principle of optical square with neat sketch.


a) Write the obstacles in chaining and explain how you

overcome when building comes across the chain line.

b) Distinguish between True Meridian and Magnetic Meridian

and explain Dip of Needle.

c) Why zero is marked at south end on a prismatic compass ?

d) Draw a labelled sketch of prismatic compass and give

example of reading taken on prismatic compass.

e) Define bearing of a line and convert following fore bearing

into back bearing

i) 127° 30'

ii) S 38° 30' W

iii) 54° 45'

f) Define closing error and explain graphical method of adjusting

closing error.


a) Calculate interior angles in a closed traverse PQRST by following

observational bearings.

Line FB

PQ S 37° 30' E

QR S 43° 15' W

RS N 74° W

ST N 11° E

TP N 57° 45' E



b) State different accessories of plane table survey and their use.

c) Write any two advantages and disadvantages of plane table

survey.

d) Explain traversing method of plane table surveying.

e) Explain with neat sketch method of orientation by back

sighting of plane table survey.

f) Define line of collimation and axis of bubble tube.


a) Describe the advantages of Auto level.

b) Explain with neat sketch reciprocal levelling.

c) Distinguish between the following:

i) Back sight and fore sight.

ii) Simple levelling and differential levelling.

d) Define fly levelling and explain the situations when fly levelling

is required.

e) Enlist the sources of errors in levelling and explain any one

source in detail.

f) Explain the precautionary measures in levelling.

6. Attempt any TWO of the following: 16

a) i) Find the area of the plot ABCD from the data collected in

chain and cross staff survey. (Refer Figure No.1)

Fig. No. 1

ii) Q and R are two points on the opposite banks of a river along

a chain line PQR which crosses the river at right angles to the

bank. From a point A which is 96.2m from Q along the bank, the



bearings of R is 305° 30' and the bearing of P is 215° 30'. If the

length of PQ is 150 m, Find the width of river.

b) The following bearings were observed in running a closed

Traverse PQRST with prismatic compass.

Line F.B. B.B.

PQ 80° 10' 259° 0'

QR 120° 20' 301° 50'

RS 170° 50' 350° 50'

ST 230° 10' 49° 30'

TP 310° 20' 130° 15'

Calculate the included angle and find out corrected FB and

BB with usual check.

c) The following page of old level book having few staff reading

missing find out the missing reading and rewrite the page.

Apply usual checks.

Stn. Staff Reading H.I. RL Remark

BS IS FS

1 2.650 × 100.000 B.M.

2 × 98.910

3.830 98.820

4.640 × × 98.380 CP1

0.380 ×

1.640 × 103.7 102.060 CP2

2.840 100.860

× 3.48 104.9 100.220 CP3

× 102.700 End Stn.



Summer 2016 17310

15162



(2) Attempt all questions including Question No. 1 which is compulsory.






permissible.



Marks

1. a) Attempt any six of the following : (6×2 = 12)

1) Define survey and state its object.

2) Draw the conventional symbols for following

1) Embankment 2) Cutting.

3) State the use of following

1) Arrow 2) Wooden peg.

4) Define :

1) Base line 2) Check line.

5) What is meant by perpendicular and oblique offset ?

6) State the principle of plane table survey.

7) Define true meridian and magnetic meridian.

8) Define :

1) Datum 2) Change point.

b) Attempt any two of the following : (4×2 = 8)

1) State and explain principle of survey.

2) A line was measured by 20 m chain which was accurate

before starting the day’s work.

After chaining 900 m, the chain was found to be 6 cm too long.

After chaining total distance 1575 m the chain was found to be

14 cm too long. Find the true distance of the line.

3) State any four codes of signals in ranging.



2. Attempt any four of the following : (4×4 = 16)

1) Explain in detail classification of survey.

2) Draw the neat sketch of 30 m chain.

3) Explain principle, construction, use of optical square.

4) Convert following bearing to another bearing system.

1) N 28°33′E 2) S 41°5′E

3) 240°130′ 4) 270°00′

5) What is meant by orientation in plane table survey ? State its

method and explain any one.

6) Explain Temporary adjustment of dumpy level.


1) Explain chaining on sloping ground.

2) What is meant by well conditioned and ill conditioned

triangles ? Draw the fig.

3) Define :

1) Whole circle bearing

2) Reduced bearing

3) Fore bearing

4) Back bearing.

4) Following are the bearing of line of closed traverse ABCD.

Calculate interior angles of traverse.

Line F.B.

AB N 45°10 E

BC S 60°40 E

CD S 9°50W

DA N 80°40W

5) Explain Radiation method of plane table survey.

6) State fundamental axis of dumpy level and give their

relationship.


1) Find the area of the field done by cross-staff survey.

Q.No. 4 (1) Fig. (a)

2) State the sources of errors in compass survey.

3) Explain Intersection method of plane table survey.

4) Explain types of bench marks.

5) Differentiate between H.I. method and rise and fall method.

6) The bearing of line AB is 153°30′ and angle ABC 135°40′ . What

is bearing of BC ?



Q.No. 4 (1) Fig. (a)


1) Explain how will you overcome the obstacles over river during

chaining operation.

2) What is meant by local attraction ? How will you suspect local

attraction at the field ? State its effect on included angle.

3) State any four advantages and disadvantages of plane table

survey.

4) What is meant by profile levelling and cross-sectioning ?

5) Following readings were taken with dumpy level.

3.865, 3.345, 2.930, 1.950, 0.855, 3.795, 2.640, 1.540, 1.935, 0.865

and 0.665. The level was shifted after 5th and 8th reading. The

first reading was taken on B.M. of R.L. 150-250. Calculate R.L. of

remaining points. Apply usual check use H.I. method.

6) Following consecutive reading were taken on continuously

sloping ground with dumpy level 3.875, 3.630, 2.865, 1.945, 0.920,

3.165, 2.895, 1.125, 0.965 and 0.785. The first reading was taken on

B.M. of R.L. 260-865. Use rise and fall method. Find the R.L.’s of all

points and apply usual check.

6. Attempt any two of the following : (8×2=16)

1) Following fore and back bearings were observed in running

close compass traverse.

1) Find the station free from local attraction.

2) Find corrected F.B. and B.B.

Line F.B. B.B.

AB 44°30 226°30

BC 124°30 303°15

CD 181°0 1°0

DA 289°30 108°45



2) Find the missing readings. Calculate R.L.’s of all stations apply

Arithmetical check.

Stan. B.S. I.S. F.S. Rise Fall R.L. Remark

1 2.345 129.50 BM1

2 1.650 X 0.035

3 2.210 X

4 X 1.850 X

5 1.850 1.925 0.455

6 X 0.37 129.00 BM2

3) i) What is meant by closing error ? How will you adjusted graphically?

ii) State any four advantages of auto level.

––––––––––––––



Mechanics of Structures - 17311

Summer 2015 17311

21415







(6) Use of Non-programmable Electronic Pocket Calculator

is permissible.



MARKS

1. A) Solve any six of the following : 12

a) State perpendicular axis theorem, giving its expression.

b) Write mathematical expression of M.I. of a triangle about

horizontal axis passing through its apex.

c) Define ductility and malleability.

d) State the difference between nominal breaking stress and

actual breaking stress from point of cross section of body.

e) State any four end conditions of column.

f) Justify the end condition of column, if

i) y = 0 but dx dy ≠ 0

ii) y ≠ 0 and dx dy ≠ 0.

g) State the meaning of proof resilience.

h) Differentiate between gradual and sudden applied load with

respect to stress produced.

B) Solve any two of the following : 8

a) i) Enlist four assumptions in bending theory.

ii) State bending equation giving meaning of terms used in it.

b) Draw shear stress distribution diagram for triangular section

showing maximum shear stress and stress at neutral axis.

c) Define short columns and long columns.



2. Solve any two of the following : 16

a) Find the M.I. of section shown in Fig. 1 about horizontal axis

passing through C.G.

b) Find the moment of inertia of section shown in Fig. 2 @ x – x

and y – y axis.

c) i) Using parallel axis theorem, obtain the expression for

moment of inertia of a rectangle b × d about the axis passing

through its base and side.

ii) Draw stress-strain curve for mild steel under tensile loading

showing important points on it.


a) A composite bar comprising of aluminium and steel is as

shown in Fig. 3. Find the value of ‘P’ if net elongation produced in

the bar is 2 mm.

Take Es = 20 × 104 N/mm2 and Eal = 7 × 104 N/mm2.



b) A RCC column 400 mm × 400 mm is reinforced with 4 bars of

20 mm φ diameter. Determine the stresses induced in steel and

concrete if it is subjected to an axial load of 500 kN. Take

modular ratio Ec /Es =13.33

c) A cube of 150 mm side is subjected to a uniform tensile stress

of 50 N/mm2 on all faces. Calculate the increase in volume of

the cube and bulk modulus.

Take E = 2 × 105 N/mm2 and Poisson’s ratio is 0.33.


a) A steel rod, 1 m long is fixed at the ends and subjected to a

pull of 9 kN. Determine the residual stress due to an increase of

20°C. Diameter of bar = 12 mm. E = 200 kN/mm2, α = 16 × 10−6/°C.

b) A cube of 250 mm side is subjected to a compressive, force of

3.8 MN on each face. The change in volume is found to be 5200

mm3. Find E and K if (1/m m)= 0.25

c) A simply supported beam of span 5 m carries a u.d.l. of 20

kN/m over 4 m length from the left support and a point load of

50 kN at 2 m from right support. Draw S.F. and B.M. diagrams.


a) A simply supported beam 5 m long carries a point load of 20

kN and

anticlockwise moment of 8 kN-m at a distance of 3 m from the

left hand support. Draw SF and BM diagrams.

b) i) An overhanging beam is supported at A and B, with AB = 8

m and BC = 2 m. BC is overhang. Locate the point of

contraflexure if a u.d.l. of 20 kN/m is acting throughout the

beam.

ii) A cantilever beam of span 2 m is subjected to point load of 10

kN upward at free end, and clockwise moment of 20 kN-m at

free end. Draw BMD only.



c) A T section beam having flange 180 mm wide and 20 mm

thick and web 150 mm long and 20 mm thick carries u.d.l. of 80

kN/m over an effective span of 8 m. Calculate the maximum

bending stress.


a) A rectangular beam 230 mm wide has a shear force 120 kN at

a section. The maximum shear stress induced is 3.13 N/mm2. Find

the depth of the beam.

Calculate the minimum radius of gyration of section.

b) Find the crippling load by Rankine’s formula for a hollow

circular column of 200 mm external diameter and 150 mm

internal diameter. Length of the column is 5 m. If

a) Both ends are fixed

b) One end is fixed and other free

c) One end is fixed and other is hinged

d) Both ends are hinged.

Take fc = 550 N/mm2, a= (1/1600).

c) A steel rod of 25 mm diameter and 1500 mm long is subjected

to a load of 30 kN applied suddenly. Calculate the strain energy

stored and modulus of resilience along with change in length.

Take E = 2.1 × 105 N/mm2.

_________________



Summer 2016 17311

15162








permissible.

(7) Mobile Phone, Pager and any other Electronic

Communication devices are not permissible in Examination Hall.

Marks

1. a) Solve any six of the following : (6×2=12)

i) Define moment of inertia. State its value for a semicircle about

its centroid.

ii) Find the MI of a solid circular lamina of diameter ‘d’ about its

tangent.

iii) Draw stress strain curve for HYSD bar.

iv) Define proof stress and ultimate stress.

v) Draw a bending stress distribution diagram for a ‘T’ section

used as cantilever beam.

vi) Draw a shear stress distribution diagram for a ‘T’ section used

as SSB.

vii) Define radius of Gyration and slenderness ratio.

viii) State assumptions made in Euler’s theory of long columns.

b) Solve any two of the following : (2×4=8)

i) A cantilever beam of rectangular section supports udl of 5

kN/m. The span of the beam is 3 m. If the maximum bending

stress is 100 N/mm2 and the depth of the beam is 1.5 times the

width, determine the size of the beam.

ii) For applying Euler’s formula, find the minimum value of

stenderness ratio for mild steel strut with both ends fixed. Take

yield stress as 315 MPa and E as 210 GPa.

iii) Differentiate gradual load and sudden load. Write four points

of difference.



2. Solve any two of the following : (2×8=16)

a) A hollow circular section of external diameter 100 mm has a

uniform thickness of 10 mm, calculate its moment of inertia with

respect to

i) Diameter

ii) Tangent to the bottom of circle

iii) The axis parallel to and 20 mm below the tangent.

b) A steel stanchion is built up of 100 mm × 150 mm RSJ with one

120 mm × 12 mm plate revetted to each flange. The overall

depth of stanchion is 174 mm. Calculate MI about the centroidal

axes.

Properties of RSJ are : Area = 2167 mm2, IXX = 8.39 × 106 mm4

IYY = 0.98 × 106 mm4.

c) i) For an equilateral triangle of side 400 mm show that MI

about the horizontal and vertical centroidal axes are

equal.

ii) A bar of cross sectional area 200 mm2 is axially pulled by

a force ‘P’ kN. If the maximum stress induced in the bar is

30 MPa, determine ‘P’. If elongation of 1.2 mm is observed

over a gauge length 3 m, determine Young’s modulus.


a) Determine load P and total elongation in the bar shown in Fig. 1

having 12 mm diameter E = 2 × 105 N/mm2 .

Fig. 1

b) A reinforced concrete column is 300 mm × 300 mm in section,

reinforced with 8 bars of 20 mm dia. The column carries a load of 360

kN. Find the stresses in concrete and steel bars.

Take ES = 2.1 × 105 N/mm2 and EC = 1.4 × 104 N/mm2.

c) A steel rod 4 m long and 20 mm diameter is subjected to an axial

tensile load of 45 kN. Find the change in length and diameter of the

rod. ES = 2 × 105 N/mm2, Poisson’s ratio =1/4




a) A steel bar 200 mm long, 40 mm × 40 mm in cross section is

subjected to stress of 120 MPaalong length and 40 MPa on other

two faces all tensile and change in volume was observed to be

140 mm3. Determine Poisson’s ratio. E = 200 GPa.

b) In a tension test on a certain specimen 20 mm diameter, 200

mm long an axial pull of 100 kN produce an elongation 0.32 mm

and reduction in diameter is observed to be 0.0085 mm. Find the

value of Poisson’s ratio and the three moduli.

c) Draw SFD and BMD for the cantilever beam loaded as shown

in Fig. 2.

Fig. 2


a) Draw SFD and BMD for the simply supported beam shown in

Fig. 3. Show all important values.

Fig. 3

b) An overhanging beam ABC, such that AB = 4 m and BC = 1 m.

It is supported at ‘A’ and ‘B’. The beam ABC is subjected to udl

of 30 kN/m over entire length, it is subjected to point load of 50

kN at the free end C. Draw SFD and BMD. Locate point of

contraflexure if any.

c) A T-section with flange 120 mm × 10 mm and web 10 mm ×

120 mm is used as a simply supported beam with flange at top. If

the permissible bending stress in tension and compression are 160

MPa and 100 MPa respectively, determine the moment of

resistance. E = 210 GPa.




a) A channel section is shown in Fig. 4. It carries a shearing force of 150

kN at a particular section. Calculate the ratio of average shear stress to

maximum shear stress.

Fig. 4

b) Compare the crippling loads given by Euler’s and Rankine’s formula

for a strut with both ends hinged, 2.5 m long, 40 mm external and 30

mm internal diameters, Take E = 200 GPa,

α = 1/7500 , σ c = 320 MPa.

c) A weight of 1000 N falls on to a collar, at the lower end of the bar 5

m long, through a height of 200 mm. Determine the diameter of the

bar if the stress induced is 80 MPa.

Take E = 210 GPa.

––––––––––––––

Department of Civil Engineering

Sanjay Ghodawat Polytechnic, Atigre Page 1

For Details contact:

Mr. V.S. kumbhar

HOD

Civil Department,

Sanjay Ghodawat Polytechnic, Atigre.

Mob. No.: 7798306363

Ph. No.: 0230 -246312

Email ID: [email protected]

mailto:[email protected]

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