gate 2018 civil engineering solved papers pdf

2018 Civil Engineering Fully solved with explanations Analysis of previous papers Topicwise presentation Thoroughly revised & updated B... GATE - 2018 : Civil Engineering Topicwise Previ

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www.EasyEngineering.net

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2018

Civil Engineering

Fully solved with explanations

Analysis of previous papers

Topicwise presentation Thoroughly revised & updated

B Singh (Ex IES)

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GATE - 2018 : Civil Engineering Topicwise Previous GATE Solved Papers (1991-2017)

All rights are reserved No part of this publication may be reproduced, stored in or introduced into

a retrieval system, or transmitted in any form or by any means (electronic, mechanical,

photo-copying, recording or otherwise), without the prior written permission of the above mentioned

publisher of this book.

MADE EASY Publications

Corporate Office: 44-A/4, Kalu Sarai (Near Hauz Khas Metro Station), New Delhi-110016

E-mail: infomep@madeeasy.in

Contact: 011-45124660, 8860378007

Visit us at: www.madeeasypublications.org

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Over the period of time the GATE examination has become

more challenging due to increasing number of candidates

Though every candidate has ability to succeed but competitive

environment, in-depth knowledge, quality guidance and good

source of study is required to achieve high level goals.

The new edition of GATE 2018 Solved Papers : Civil Engineering has been fully revised, updated

and edited The whole book has been divided into topicwise sections.

At the beginning of each subject, analysis of previous papers are given to improve the understanding of subject.

I have true desire to serve student community by way of providing good source of study and quality guidance I hope this book will be proved an important tool to succeed in GATE examination Any suggestions from the readers for the improvement of this book are most welcome.

B Singh (Ex IES) Chairman and Managing Director

MADE EASY Group www.EasyEngineering.net

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1 Solid Mechanics 1-54

2 Structural Analysis 55-97

3 RCC Structures and Prestressed Concrete 98-131

4 Design of Steel Structures 132-164

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(a) łw ı (b)

2 t

8(d) t

M L? M LZ(c) aÈı (d)

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(b) y : ll a si n 2 )

n(C) y a S ı"i

n(d) y a C O S i

[2 0 1 4 : 2 Ma rks S ti]

Eダ

sho w n in the follo wing figure For a lo ad P as

sho w n in the figure the perce ntage of the ap p lied

lo ad P carried b y the spring ïs

l P日

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I M ADE E Ą S Ţ

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J Sate e t 1 is tu e but 2 is faıs e(c) Sate nt 2 s tu e but 1 s fals e(d) Both th? state m e nts a re false

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Ë þ g

ı尋

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(c) stab le a nd indete rmin ate(d) u n stabe but dete rmin ate

[19 9 1 : 1 Ma rkt

1 Nu mbe of indepe nde nt d ispa c e m e nt m ode s(s ay me cha nis m s) fo r te g iv e n fra m e wih te

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[2 0 0 4 : 2 Ma rksj

1 1 3 co n side ring beam as axiaıly rig id te degre e of

fre edo m of a p la n e fram e sho wn beıo w is

(a) 9 (b) 8(C) 7 ( d ) 6

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m (￠)

T he degre e of kme m atic indetermina cy is g iv e n

b yD

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()

C f d[1 9 9 3 2 Ma rks]

4 5 Match the follo wing m ethods wih ap propria te

a n alysis

Strin e nerg y m ?od(b) Co mp lem e nta ry e n er9 V method(c) Mulle r Bre sla u Prin cip le

(d) Ka ni m etod of a nalysis(i) Influ e n c e fo r redundant stru ctu re s

Oi) Defle ctio n of lin e a r stru ctu res(iíi) Defle ctio n of n nline a r strc tre s(iv) An alys is of muls to eyed hame s

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(b) 1

(c) 2(d) 2A

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( ) Castigliano theo re m( ) Mm m m pote ntaıe n e rg y m thod( ) F le xibïty m trix m etod

D ispa c e m e nt m ethods are() Mo m e t d istriutio n( ) Sope defle ctio(山) Ka ms m ethod( ) St ffe s s matrix m etod

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4

0 1 4 - 之

一

㈹

晒湯门

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e o c o s e + FA B 0 (iĺ)

Fro m (i)w e n a v e

P PF

m 2s m 4 5

FAa FB D c o s eP

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Co n si de ring joint Rw e ge

￡F

y O

FTR sīn 4 O F

A a c o s e 6 75 ( ii )

Fro m eq ( i ) a nd ( ii )

丐吕

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UP O + uP c o s e O

uPQ P Rc os e c o s e

2sine

upQ cote2

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Keep ing the pro visio n s of IS 4 5 6 2 0 00 o n ıiml

state de sign In mind wh ich oFthe follo wing is tn Je

(a) State m e nt łis Tru e but ll is Fals e

(b) Statem e nt ıs Fals e but ıłis Tru e(c) Both state m e nt r a nd II a re Tru e

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0 3 6 fk b X 08 7 f

y A

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be a m P and the she a r reinforce m e nt sho ul

be de sgn d fo r 120 kN fo r be a m O (c) Sh e a r re nforce m e nt sho uld be de signed fo r

1 75 kN for be a m P a nd the she a r re mfo rc e m e nt

sho ld be de sign ed fo r 5 2 k N fo r be a m Q (d) T h e s e c tions for both be a ms P and Q n eed to

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go v e n s th e stre ng

(c) whe n te c ru sh ing of te c o n c rete in te

c o mpre s sio n z o n e go v e rn s te stre ng(d) n e v e r

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k 2 0 N/rtrmz

M?im u m stres s in c o nc rete

a 0 4 5 fx 0 4 5 × 2 0 N/mm ?

6

3 × 106 m m3

Ma xim u m mo m e nt

M Z Cb i 3× 106 ×2 2 × 06_ kN -

P LM3

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r 明日国

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9 7 5 N /m rm? ( ten sio ) 375 N lmm a(c pre s sio n)

(d ) 2 7 5 N /m 2 (co mprs sio n) 375 N /m m2(co mprs sio )

[ 2 0 0 7 : 2 Ma rk

s]

41o A prete n sio n ed c o n c rete m e mbe r of s e ctio n

200 mm x 2 5 0 m m c o ntains te ndo n s of a rea5o0 m mz at c e ntre of gra vity of the s e ctio n The

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ťë ä g sïie ng tin of th n n er p la te

◆ græ e lihe b e a nng s trength of rw eta nd the

s h e an四 of寸论削锐(d) le s s er o m e she a n ng stre ng th of ther a a nd

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l S

M ADE EASY ru c tu re s

+ P

(a) 10 0m (b) 1 0 5m m(c) 1 10mm (d) 1 15m m

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Fo r ang le s c o n n e cted on both side s of gus s e t p laie

E ffe ctive e a

A A

1 + kA2A

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Z xrd

50 0 103 20 0 × 1 6

10 0 k Nm

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(b) the v e ıtcal shea r force at the s e ctıon

(c) the horiz o ntal she ar fo rc e betw een the fla nges

and te web p late(d) the force s c a u sing buck ling in te web

(c) equlibr iu m(d) c patrb ıty of deform atio n

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, e ・ ( ģ,

3 0þ pL p

2 L:Collaps e lo ad P

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G A T E pr e *iołsYe a r sso re p a l

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(c) de n sity ndex(d) c o etftce nt of pe rme ab ility

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p 0 7 9 (wL 2 0 )

( b )'

p 070 (w 2 0 ) (c)'

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ーイ d d

Year ssohred pape r s ı a M A D EF ıoE EAS Y ıG*o ıı￠hnıď Eng lm ıtınl l ıe 3G

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回回h

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(b) e v słogap rlation sh ip is lin e a r

(c) p v s log oe relatio nsh ip is line a r

(d) e v s I 0 9 p

c o n s olidatio n(b) e stim atng the a m o u nt of s ettlem e nt fo r a ıo ad

n c re m e nt

(c) det m in ıng the dep th to wh ich the soil is

stre s s ed whe n lo ads a re ap p lied o n the s u rfac e

of a s oil depo sit(d) dete m g te prec o n s olidation pre s s u re fo r

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[20 0 3 : 2 Ma rks}

4 1 6 Ro ot m e m ethod is u s ed to dete rmin e(a) Ttim efa cto r

18 kN /m (ii) u mıw eght ol s and and claybelo wıhe water

table 2 0 k N /m (N) co elfc e t ot olu m e co mpre s sb lity

0ó and 168 7 5 k N ( b ) 0 3a d 20625kN An

0 6a nd 20625 kNlmp (d) o3a nd 16 975kNlma

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[1 9 9 6: 1 Ma rk]

a? P ipig m s oil o c c u rs whe n

(a) the s oll is h igh ly poro us(b) s ud den cha nge in perm e ab llily oc c u rs

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ırしVOlu 厅旧

0 3×9 8 1 1

2 9 4 3 kN

F ず Vo ı내 m e(2 2 9 8 1) 1

12 19 kN3

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13 o 5 0ta n 4 5 + ţ )

国旧

On s tres s path in te rms of p q p lot

0P2g2

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FO q O k 1

D p th of te n s io n c ra ckZ

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3 o ĺ G ATE pr e vio u

1 0 3 (a) 1 04 (c) 1 0 5 (b) 1 0 6 ( d ) 107 (a) 1 0 8 (d) 1 0 9 (b) 1 0 1 0 (d) 101 T Tayıo r s stb llityn u mbec

F120126×17*iii 0 51

26 0요

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bo nd failu re a nd she a r failu re(d) she a failu re a nd s ettıe m e nt

s a m e pre ssue will be(a) 94 (b) 18 6(c) 12 7 (d) 1 7 8

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[2 0 0 8 : 2 Ma rks]

1 1 3 0 T he fe ıo ad (k N) tat te fo otng ca n c arry wilh

a fa ctor of safety 3 is(a) 2 8 2 (b) 6 4 8(c) 9 45 (d) 12 6 9

of S Ħ 1(b) s tu ted silñn e s a nd a nd N alu e of S P T <

10 afte the o ebu rde n c o e ctio n

sa twated s lltñne s a nd a nd aıue of S P T

15 afe r th e ov ebu rde n c o rre cto n(d) co a rse s a nd u nde r dry c o ndıno n a nd N alu e

test?

ł0 E A s Y 1 óe oıe chnical Eng in e eing(a) Abs e n c e of the o v erburde n pre s s ure durirıg

[2 0 0 9 2 Ma rks]

e tio ns 1 1 35 a nd 1 1 36

pre s sive stre ng ıh of a s aturated clarl135

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(b) 1 2 3 4

(c) 2 3 4(d) 4 1 2 3

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k 13四□ I。

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(a) 132 k N

(C) 2 8 7 k N

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[19 9 6 : 1 Mark]

2 2 The c e n tre of pre s s u re ol a liqud o n a p la n e

s urface imm e rs ed ve rtic ally in a static bod y ofliquidalw ays lie s belo w the c e ntrld of the s urta c e

a re a be c a u s e

(a) in liquds the pre s su re a c ting is s ame m all

d ire cto n s

(b) th ere g n o she ar s tre s s m liquids a t re st(c) th e lrqud pe s su e is c ons tant o v e r dep th(d) te lqud pe s su r ncre a s e s line arlw tlh dep th

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Re sulta nt fo rc e pe r u nit wid th

FR ĄF + F

41 25z +2 2 6 42 1 27 0 9 kN

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刁u 加

u y ?x

O 园

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(c) 2 0 (d) 2

[1 995 : 1 Ma rk]

5 She a ste s s de ıops o n a fuid ele m e nt If(a) the fıid s at e st

(b) the fld c o ta e s s b le ct to u nifo rm line a r

ac c ele ati(c) the fl d s n s cd

(d) the fıud s v s c o u s a nd the flo w s n o n u nio rm

[19 9 5 : 1 Ma rkt

5 5 Iffo a fluid oto n pe s s u re at a point ıs s a m e

in aıl d ie cto n sthe n the fıid is(a) a re aıfud

(b) a Ne wto a n fıd(c) a n ide al fıud

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Ð xıtd

Q c JgH\ ta n4 5 JCMl H 20 c m 0 2 m

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ap *

\n e la Įu e nın«i￠«n«rw (f e m \

Qlv￠rły

ú»'

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c ircuit ıs z ero(b) the a lgebraic su m of d isc h ge s a rou nd e a ch

c i c uit sho uıd no t be z e ro

7 Ba n ch ing ppe pob lm s a e u s u aly s olv ed(a) by a s s ng the he ad ıo s s is te s a m e

tr gh e a ch p pe(b) b y eq ale t le gths(c) b y a s u m ng the eıeatio n of te h ydra ulic

rpe at n e c e s s a ry(b) a s s u e a R c o mpute fche ck k/D etc(c) a s s m e a Vco mp e R ıo ok up fo r fc o pute

v aga m etc(d) a s s u m e a O c o mp e V R lo ok up e tc

[19 9 4 : 1 Ma rk]

(c) the elevatio n ot hydra ulic grade lin e łs

a s s u m ed for e a ch lun c11o n point(d ) e l e ntary circ uits a re replac ed by equivae nt

los s is ed y ing m oto n(b) T he me a n pre s s u e m edd y lng fluid ts equa ı

to te do w n stre a m press u re

(c) T he m e a n pressu re in ed d y ing flud is equ al

to te ups t ea m p s ue(d) He ad lo st ￠n ed de s s n eg lected

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M A o ı ı *ıt J

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G A TE P￠e vio u sYe ars g I M AO

E E ĄS v

ba syþm erged w eıgh t of e p late is a nd the km e m atrc vis c o sity of air a re

1 2 kg/Ma a

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ba s c d e s o s n olv ed m te pob le m(ii) T h depe de t a be m u st n ot be cho s e n

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[1 9 9 9 : 1 Ma rk]

11 4 A ho o tal Jet st k e s a f icto nıes s v e rtc al p late(te pa e s sho n te fig e)\t is the n

Trang 165

for e a rn@ tu rbne

Fro m c o m mully equ alĺo n we gelO

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m a xim u m

( b ) fo r a g iv e n d is cha rge spe cific e n e rg y is

minim u m(c) d is cha rge is minim u m fo r a g iv n pe cific

whe n it m e ets the po ol of wate rT he dep th fflo w

afte r theju mp fo rm atio n is1 5 1 m Fro de n

Of flo w afte r the hydra ulic ju mp s(a) o 30 ( b ) o71

( d ) 157 m(C) 1 02m

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3 0 0 1

13 2 2 Fo r a p ipe of rad iu s rflo wing half full u nder the

a ctio n of gravity the h y draulic dep th is

m 4

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邑

口

园日

茖

◆ 己

녘n岔

当

n 0岔

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口台-の

強

寻

くー一1

l。

回

□ 葛ヨ瞿ぎ区ヨ

巴ヨ

の门

功

量

只

己ヨロ

回

锦 당 迈

学

置

ミロ

甚

田

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焉コ

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置

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一一

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ー

闻ロ

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吾

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国ユ

名

了ロロ

口

m

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コ0くのココ

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印己

名

コロ

圆巳巳ゴの

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己

のコ

ぴの0

了ロ

名氯

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亡の

门ロ

コの

皂

了の

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magn e siu m(c) b ic a rbo n ate s of s od iu m a nd pota s siu m

( d ) c a rbo n ate s of c alciu m a nd m agn e siu m

[19 9 5 : 1 Ma rk t

A tkalinity of w ate r c an bedefind c orre ctlym o n e

of e follo wing w ays(a) itisthe m e a s u re of ab il iıyof waterto n e u»aJĖe

o xyge n( b ) itisthe m ea s u re of ab il ity of wate r to n e utra iŁe

c a rbo n ate s(c) it is the pre s e n c e of io n s in w ate r that v

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2 3 7 Total hardn e s s (mg L a s CaC O

a) pre se t n t he

abo v e w ate r s a mp le is(a) 205 ( b ) 250

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( b ) Ħoc fo rm atio n a nd its s ubs eque nt remo v al b y

s ed im e ntatio n

(c) F lo c fo rm atio n a nd its s ubs eque nt re m o v al b y

de c a ntatio n( d ) Re m o v al of ba cte ria b y filtratio n a nd

o rga nic m atte r( b ) k ill g ia rd ia cysts

(c) re a ct with in o rga nic matte r( d ) redu ce ba te rial gro wth in filte rs

(c) v thi s c o s i t yv 1 o c ity grad ie ntand lhe v ołume of

e mixing ba sin( d ) dete ntio n time a nd vis sityof w ate r

[ 19 97 1 Markt

a7 T he abs o rbe ntm o stc o mmo nlyu s ed, n w aıe a nd

w a ste tratme nt is(a) s a nd of grain sizefro m o 1 to2

m m( b ) a ctiv ated c a rbon gra n ule s oĺsize01 to2m(c) o rd in a ry w ood sha vings of fm e siz e( d ) co alta r

[ 19 97 ; 1 Ma rk t

38 Am o ng the follo wing d isinfe ctants o￠

the o n e that is m o st c om mo nly us ed

(a) C h lo rin e d io xide( b ) C hlo rin e(c) Oz o n e

[ 19 9 7 : 1 Ma rk t

3 9 Co agulatio n fıo c c ulatio n with alu m(a) im med iateıybefo re ch [ońn alia

( b ) im m ed iately afte r ch lo rinaóo(c) alle r rap id s a nd filtratio n

Trang 183

[ 2 0 0 5 : 2 Ma rks]

3 2 5 T he n u mbe r of filte rs required shaıe(a) 3 ( b ) 4

(C) 6 ( d ) 8

1 2 0 0 5 : 2 Ma rks]

Com m on Data fo r Que stion s 3 2 6 a d 3 2 7 [n a rap id s a nd filte rthe tim e fo r re a ch ing pa rticle

Trang 184

degre e of d isinfe ctio n fo r the e nha n c ed flo w is(a) 60 5 0 ( b ) 4 0 0

Trang 185

3V

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: Ded sn a s d w

Trang 192

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R C hlorin e 3 N/5 0 H

2 S O

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[ 2 0 1 7 : 1 Ma rk Set ll]

1 0 2 8 W h ich o n e of e follo wing is N O T preg eqt in the

a cid rin?

(a) H N O, ( b ) H

zS 04

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M A D E EA s g

ĺ W e f ' De sin & Co st uctio ,

j J D e s ig n & c o n s t r u c t ı o n o ï u ıa w ıw u q w s (c) ・ ' ' " "

rx ıa n atio n s De sign & Co str tio1

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