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t0cv72

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Exglainthe common defects in the welded connections.A iblgt'"cultins is used as bracket to suooort a factorec is welded to the

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flange as shown in Fig. compute the size ofthe fillet weld.

Fie. Q3(b)

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*&^cv

Seventh Semester B.E. Degree Examination, June/July 2OL4

Design of steel structures ,,,,]ll#

Max. Marks:*'00Note: 7. Answer FIVEfull questions, selecting

atleast TWO questionfrom each part ,,. , 'il'1,

2. Use of Is : 800 - 2007 and steel tables is permitt'@.

PART - A

(05 iVlarks)joint shown in figure. The thickness of

plate 10 mm use M20 bolts of grade(15 Marks)

Fig. Q2(b)

(05 Marks)

A{W"culting is used as bllcket to support a factored lgad of-200 kN.;{l i

o li '4.'r oolt {e il "

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4a. Determine Z, and Mo about ZZ axis for the channel section shown

t0cY72in Fig. Q4(a). Given

(10 Marks)fr:250 MPa. Also find shape factor.

hr{r

3soxlo

Fie. Q6(b)

the pedestal. (10 Marks)

A hall of clear dimensions 15 m x 6 m is to be covered by RCC slab flooring 12 cm thickresting over RS joists spaced at an interval of 3m, centre to centre. Floor finishing 2 cmthick is to be provided over the RCC slab. The live load on the slab is 4 kN/m2. The joistsare resting over 30 cm thick walls. Design an interior beam using code specifications. The

unit weight of RCC and floor finish is 24 kN/m3. Apply all the necessary chicks. (20 Marks)

***{<,1.

2 of2

1^v?r""-_r9-A__=- tw',

Fig. Qa(a) L?aL., ' .*,lt|il'""{rf +

Determine the plastic moment for a continuous beam having uniform cross section ?.,,f

STbwn

in Fig Q4(b). (lo Marks)

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PART-B .,..,::",,, ""

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.",(,qExplain wirtiu{fuaid of sketches : i) LUG angle li) Cuffiffi9, (05lvlarks)

A single uniqtiaf'.angle 100 x 75 x 6 mm is connected to -a{. thick gusset plate at theends by 4 mm welds as shown in Fig. Q5(b).Determinethp design tensile strength of theangle iithe gusset trp_onnected to the 100 mm leg. Th&ffild strength and ultimate strengthof the steel used are 256]qtf;a an d400 MPa. (15 Marks)

Define column base. What are the tlpes of column bases? t10 Marlcs|

Design a slab base for a column ISHB 350 @ 710.2 N/m subjected to a factored axiblcompressive load of 1500 kN. The SBC of soil is 250 kN/m2. Use M20 grade concrete for i

t0cY764USN

Seventh Semester B.E. Degree Examination, June/July 2O14

Photogrammetry and Remote Sensing't1.1.1u,u,,r,i, ""'

Tirn'fi.S hs.

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Note: Answer any FIVE full questions, selectingatleast TWO quesfions from each part.

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Max. IVlarks:100

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b.

a.

b.

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b.

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Explain the co@nents of a phototheodolite with the help of,a'' at sketch. (10 Marks)

In a terrestrial ph@.Q,,g1mmetric survey, a photo theodolits was set up over two station A and

B running from we$t,,,toreast at the extreme points of-a base line AB measuring 1300m inlength. The optical axds:dphototheodolites at A an&;B are inclined inwards at angles 50"

and 46 at base line. The N;l;.frorn A shows lpp+qt D 24nln to the left of the vertical lineand 6mm above the horizontal&% while in.p.1. graph from B, it was 30mm to the left ofthe vertical line. Focal length of'C#npp leris*rs 30cm and R.L. of camera axis at A is 60.12metres. Calculate the distance of D m A and its R.L. (10 Marks)

Derive an expression for scale ofa'T ertical photograph of two points in different elevationon the ground. Also defure datq{n scble and iiVerage scale. (10 Marks)

The ground length of a line,.,,A,b is known to b,e_ 545m and the elevation of A and B are

respectively, 500m and -J@ above m.s./. On d"vertical photograph taken with a camera

having focal length of. 20cm include the images a= b of these points, and theirphotographic co-ordin&t€s are: (xu : +2.65crtr, y" : +1.3 ); (xu: -l.92cnt, y6 : +3.65cm).

The distance ab directly from the ptotograph is 5.1\2 cm. Compute the flying height"'*',*i:.

r_ (10 Marks)

Explain ftlhtii;" of mirror stereoscope and lens stereoscope. - * (10 Marks)

In a.gaif of overlapping vertical photographs, the mean distance bery,,pen two principalpoi ,both of which lie on the datum is 6.375cm. At the time of photopraphy, the air craft

...-1v,.as 600m above the datum. The camera has a focal length of 150mm:"'"ltlthe common

" iliierlap, a tall chimney L20m high with its base in the datum surface is obserVed."Determine' difference of parallax for top and bottom of chimney ($4"tr9

Explain electromagnetic energy interaction with each surface features with the help of aaeat.:..sketch. (10 Mark*),,,,,,,,,,,,,,

Define ideal remote sensing. Explain the components of remote sensing, with aneat sketch;(10 Marks)

5a.b.

PART _ B

Describe MSS, AVHRR, LISS, TM and WIFS.Write a note on spatial resolution, spectral resolution,resolution.

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(10 Marks)radiometric resolution and temporal

(10 Marks)

rt

6a.b.

Explain in brief about ratio metric and geometric correction.

t0cY764

(10 Marks)Explain image enhancement and image transformation based on arithmetic operation.

Marks)

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.7 a. Explain visual interpretation keys used for interpretation of a satellite imagery. (10 N{ilfu)e; b. Explain unsupervised classification for digital image processing. (lql:mhilfs)

,t{qft%.r-8 @* exptain the role ofremote sensing in agriculture and water resources -unug"*.d-,h

#4 -

,"110 Marks){t

t %the

use of remote sensing inurbanplanning and environmental an#*hioo1rona""m;

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10cY74USN

Seventh Semester B.E. Degree Examination, June/July 2O1,4

,.t. ,. Design of Prestressed Goncrete Structures,:::,,::,,.:::,,,

't ti' ,.,., t:.-';'

s. Max. VtP[<J:f OO:$thq 3 hrs' Note: 1. Answer any FrVEfult questions, selecting .,,. ;:

r"i atleast TWO questionsfrom each part. :: :,".. ","'

g i.,1"- 2. Use 15:1343-1980 is permitted.o ,,i' ll, -.q "; 3. Assume any missing data suitably.

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O ... 'N,, PART _ Ar hd^

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E 1 a. Distinguish between RCC and PSC. I l ""' (08 Marks)Fg b. Distinguish bdt#{ebn pre-tensioning and post tensioning. .,:,*.' (06lvlarks)

q?o& i c. Describe with neafskptches the Fryssinet system of post IS*il ioning. (06 Marks)0-=s=0:=y-

E S 2 A rectangular beam 2 x 500mm in section is''eitiliply supported over a span of l0nrtrS j and is pre-stressed with ar,'iaitial pre-stressing;g{,6.00kN which is located at 100mm from

.= + :r,:.:r , lir,, , ii

:= $ the soffit. The beam is required to carry a-ldad"6f 8 kN/m in addition to its own weight6V

E a. assume the loss ration as 80%. I-)ptermifre'the stress distribution under the following

€ E conditions: i) At transfer of pre-stqpry;.,,ii) At working load condition. Assume density of

9e l

; € 3 a. List the various losses of prestreik:,ihat occur'in-pre-tensioned and post-tensioned beams.P + (06 Marks)o(J

; i b. A post-tensioned beam 150ffi wide and 300mdl'@p is having parabolic cable consisting

$; of 12 wires of 5mm dffiter. The cable having hti eccp_ntricity of 50mm at mid span and

f E zero atthe ends, the inlM pre-stress in steel is 1000N/&frf. Find the total percentage loss ofiE pre-stress length ofibeam : l2mtr, p : 0.35, K: 0.015/patr, relaxation of steel : 8%;o,

; X anchorage slop Aa:5mnr, Ec:3.5 x 104 N/mm2, Es:2.1 x ld.N/mm2 creep coefficient is

E * 2.5, shrinkagu rf "on.rete

e., :2 x l}a. (14 Marks)

tr o- stinguish between short term and long term deflection of PSC beams. (06 Marks)S : 4 a. Di hort term and long term deflection of PS

6 € b. A corciete beam with a cross-sectional area of 32 x 103 mm2 and ridiu* of gyration of! fi 72 r is prestressed by a parabolic cable carrying an effective stress of 1000 N/mm'. Theq E ipan of the beam is 8m. The cable, composed of 6-7mm diameter, has an ec ricity ofi E 50mm at the centre and zero at the supports. Neglecting all losses, find the cential deflection

H $ of the beam as follows: i) Self weight * prestress and ii) Self weight + prestresi + live

A^E load of 2 kN/m, Take E : 38 kN/mm'and density of concrete : 24 kN/m'. (14 Marks)F>59::' DArD'r-rlo< ART_B-r ..i 5 a. Explain the various types of failure occure in PSC beam due to flexure. (08 Marks)

i, b. A pre-stressed concrete simply supported beam rectangular in section of 200mm wide and

2 500mm deep is prestressed by tendons having an area of 600mm2 located at l00mm fromE the soffrt of the bearn, given f.r : 40N/mm2, fb: 1600 N/mm2 estimate the ultimate flexural

E strength of the beam foi the following cases as per IS-code recommendation i) If the beam.E is pre-tensioned; ii) If the beam is post-tensioned with effective bond; iii) Post-tensioned

unbounded tendon.I of2

(12 Marks)

"l

t0cY74

6 a. Explain the factors responsible for improvement of shear resistance in PSC beams.(08 Marks)

b. The support section of a PSC beam 120mm wide 240mm deep is required to support an

ultimate shear force of 75kNI. The compressive pre-stress at centroidal axis is 5MPaf.r : 40 MPa, ! : 415 MPa concrete cover for shear reinforcement is 50mm. Design a

,, "'.. suitable shear reinforcement as per IS 1343-1980. (12 tr4&Jth)ji.-, !a'r',=':

t:#:,'lb Explain the anchorage stress in post-tensioned member and end block reinforcemclft. n. .:.:,,:,:::;. : t.(f0 Marks)

5 =.etSC beam 300mm wide and 500mm deep has two anchorage of 150mm g.gdg#i with the-e-€-hffes at l25mm from top and bottom of the beam. The forces transmitted bytach cable is

Sffiestimate the maximum tension and brushing force. * (10 Marks)

,!

8 a. Write briit#y.about the limiting zone for cables in PSC members.*,*flni,' (06 Marks)a. wrlLg Drft6#*y. auuut tlltr ll[ur[rB zurltr rur u(ruleD rlr r D\, IrrsurusrD.d\ '::_ (uu rvrarr!,

b. A pre-ten!ffiE PSC beam of rectangular cross-section is \ffid to support a design

ultimate moffidtrcf 120kN-m. Design the section. Take.,::.,.*d,.W50N/mm' and fu : 1600

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