ESE(Mains)-Civil Engineering: Volume 2

783 Pages·2018·105.144 MB·English

by  ACE Engineering Academy Editorial Board

Website: www. aceengineeringpublications.com
-
[MAINS]
CivEinlg ineering
(Thorougrhelvyia snuedpd d ated)
PAPER-II
· (Fluid Mechanics & Hydraulic Machinery, Hydrology, Irrigation Engineering,
Environmental Engineering, Geotechnical Engineering, Surveying and
Transportation Engineering, Geology)
Previous Conventional Questions with Solutions, Subject wise & Chapter wise
(1987 - 2017)
ACE
Engineering Publjcatio·ns
{A Sister Concern of ACE Engineeting Academy, Hyderabad)
2017
Copyr;ght © ACE Eng;,1eer;ng Publicatfons
All rights reserved.
No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, photocopying,
digital, recording or otherwise, without the prior permission of the publishers.
Publiasth:e d
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•
:: ACE Engineering Publications
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further editions.
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ISBN: 978-1-946581-56-3
Foreword
UPSC Engineering Services - Civil Engineering
[Paper-II Conventional Questions with Solutions from 1987-2017]
(Morteh a3n0y ears)
InU PSCE ngineSeerrivniCgco ensv,e nPtaipoenhraaslv4 e6 .1w5e%i ghitnwa rgiet tteesIntn .
PapeorfC- iIvIEi nlg ineseervsieunnbg j aercietn sc lausdf eodl lows:
1.F luMiedc han&i Hcysd raMualcihci ne2r.Hy y drology
3I.r rigEantgiionne ering 4.E nvironEmnegnitnaele ring
5.G etoe chnEincgailn eering 6.S urveying
7.Tr anspoErntgaitnieoenr ing 8.G eology
ESE2 017:
UPScCh anigteesxs a pma ttneornwa ntdh eAnc.c ortdoni enwgal dyo pptaetdti en2rn 0 1P7a,p er
IIh aesi gqhute stdiiovniisdn ettdow s oe cticoannsd,ih daatstoa e tst efimvpeqtu estiinao lnls.
Quest1ai no5dna rceo mpulsaonorduy ot ft hree maiTnHREiEn ga rteob ea ttemcphtoeods ing
atlOeNaEsq tu esfrtoimoe na cshe ctEiaocnqh.u esctairoreniq eumsaa lr ks.
The following approach is advisable to secure maximum marks.
• Thseo luttoai noqynu essthiaohlnal vt eh foel lowaipnpgr opsrtiegapetsne e rSatlelwpyis.l l
alhsaov deuw ee ightage.
(a) Thdea tgai ven
(b)T haep propfirgiuairatfepe, p liwciatpbhal relt,as b eplreodp erly
(c) Thceo ncoenwp hti tchhpe r obilbsee mi snogl ved.
(d)T hree lefovramnutlw aiets ht anndoatradt ainaodbn bsr eviIantcitaohspneeas p.se ert ter
astko s oltvheqe u esftriootmnh fuen damennteaclessd,se arriyv asthiabolednl os n e.
Other7w0i%os fme a roknshe a tsol osIetf.h q eu esctairormnio ermsea rlkis1k 0et o2 0
mardkest aainlaeldiy scs oimsp ultsoso croyhr ieg Ihft. h qeu esctairornli eemssas r ks
(< 8t)h foer mulwaieta hb breviaantcdio onncmsea pybt e s ufficIinae nncyta .s teh,e
assumpmtaidsoehn asbl ewl r itctleenaw rhlisylo el vaip nrgo blem.
• The neatness and presentation of solutions will have 5% marks.
• Note that all parts of a question shall be answered together.
• Using short sentences and brevity in expressing the content is appreciated.
• Practice of numerical problems using calculator is very much essential instead of reading
merely.
The solutions are prepared with utmost care. In spite of this there may be some typographical
mistakes or improper sequence. The student is requested to inform us regarding errors, if any to
[email protected]. ACE Engineering Publications will be grateful in this regard.
The student is advised to solve the problems initially without referring to the solutions. The
student has to analyze the given question carefully, recall the relevant steps, equations and solve
the problem in detail. Then only verify the solution. The student is advised to have a standard text
book for ready reference to strengthen the related concepts, if necessary.
This book can also be used by the under graduate students and fresh teachers to enrich their
subject knowledge.
Thanks to all the professors who co-operated in the preparation of this booklet. Thanks to the
Academic Assistants and Data Entry section in the design of this booklet.
With best wishes to all those who wish to go through the following pages.
Y.V. Gopala Krishna Murthy
Managing Director,
M.Tech. MIE,
ACE Engineering Publications,
ACE Engineering Academy.
Weightage of Subjects in Engineering Services Examination
Civil Engineering (2010 - 201 7)
PAPER- II( Conventional)
2010 20112 0122 0132 0142 0152 0162 017
Fluid Mechanics &
106 86 70 61 84 56 56 96
Hydraulic SMuabcjheicnte s
Hydrology 10 15 26 27 20 16 32 30
Irrigation Engineering 16 37 44 14 8 40 16 30
Environmental Engineering 64 40 32 56 64 56 60 84
Geotechnical Engineering 64 70 80 56 56 56 64 104
Surveying 20 15 20 14 16 20 12 27
Transportation Engineering
(Highways, Railways,
40 55 48 42 32 36 40 104
Airports, Docks&Harbours,
Tunnels)
Geology 5
320 320 320 280 280 280 280 480
Total
MaiInn dex
S.No. Name of the Subject Page No.
-------------��--
- -- -. - .....-- -� -� . . .
•-
1 Fluid Mechanics & Hydraulic Machinery 01-198
2 Hydrology 199-264
3 Irrigation Engineering 265 -328
4 Environmental Engineering 329-480
5 Geotechnical Engineering 481-602
6 Surveying 603 -650
7 Transportation Engineering
Highway Engineering 651-712
Railway Engineering 713 -748
Airports, Docks, Harbours & Tunnels 749-773
8 Geology 774-775
Page No. 01
FluiMde chanics
&
HydrauMlaicch inery
(Previous ESE Conventional Questions with Solutions)
PageNo.02
FluMiedc ha&nH iycdsr aMualcihci nery
Fluid properties; Dimensional Analysis and Modeling; Fluid dynamics including flow kinematics
(a) Fluid Mechanics, Open Channel Flow, Pipe Flow:
and measurements; Flow net; Viscosity, Boundary layer and control, Drag, Lift, Principles in open
channel flow, Flow controls. Hydraulic jump; Surges; Pipe networks.
Various pumps, Air vessels, Hydraulic turbines -types, classifications & performance parameters;
(b) Hydraulic Machines and Hydro power -
Power house -classification and layout, storage, pondage, control of supply.·
Contents
S. No Chapter Name Page No.
Properties of Fluids
01 03-07
Pressure Measurement and Fluid Statics
02 08-17
Buoyancy ,Floatation & Liquids in Relative Equilibrium
03 18-20
Fluid Kinematics
04 21-24
Energy Equation and its Applications
05 25-34
Momentum Equation and its Applications
06 35-37
Boundary Layer Theory
07 38-43
Laminar Flow
08 44-49
Turbulent Flow
09 50-54
Forces on Submerged Bodies (Lift & Drag)
10. 55-58
Flow Through Pipes
11. 59-93
Open Channel Flow
12. 94-156
Flow Measurements
13. 157 -159
Dimensional Analysis
14. 160-169
Hydraulic Machines
15. 170-198
.
·,
Properties of Fluids
Chapter
2
01. To what change in pressure a liquid of 02. A plate with surface area of 0.4m and
specific gravity 1.2 should be subjected to weight of 500 N slides down on an inclined
cause reduction in volume by one per
plane 300 to the horizontal at a constant
cent? The velocity of sound in the liquid is
speed of 4 mis. If the inclined plane is
1500 mis. (ESE-CE-91) (1 OM)
lubricated with an oil of dynamic viscosity
is 2 poise, find the thickness of lubricant
Sol: Given data:
film.
Specific Gravity ofliqsu id 'S' = 1.2
X w (ESE-CE-06) (1 OM)
Density of liquid p = P Sol: Given data: 2
X
= 1.2 10003 Surface Area ofp late 'A' = 0.4 m
= 1200 kg/m Weight ofp late W = 500 N
ml
1
!iVv --= 1 Velocity ofs liding plate V = 4 s
Reduction in volume = %
100
mis Dynamic viscosity µ = 2 poise = 0.2 Pa-sec
Velocity ofs ound in the liquid C= 1500
Say the thickness ofl ubricant film = 'y'
'1'
As the plate slides down the shear stress
We know that,
generates in the upward direction.
c-l
:. For equilibrium at terminal velocity,
Component of weight of plate in the
(k = Bulk modulus of elasticity of fluid) direction of motion = Shear friction in the
.J
⇒ 9 2
opposite dir°ection
1500 = k , k = 2.7x10 N/m
1200 :. W sin 30 = r.A
P
Let change in pressure = ti
According to Newton's law of viscosity.
du
From the concept of compressibility, r=µ.­
dy
-avBP __}. y
k=
V
9
X =
1
2.7 10 x-- /iP
100 6 2
:. !iP = 27x1 0 N/m
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