Youth Competition Times ALL INDIA ENGINEERING SERVICES AND PSU'S EXAMINATIONS CIVIL ENGINEERING VOLUME-1 Previous Years Chapterwise and Sub-topicwise Objective Solved Papers Useful for : UPPSC AE, UPSC ESE (Pre), UPSC JWM, UPPCL, UPRVUNL, UPJN AE, UKPSC AE, BHEL ET, CIL MT, DMRC/LMRC AM, DSSSB AE, IRCON AE, JUVNL AE, NPCC AE, RRB SSE, SIVNL ET, TSGENCO AE, Vizag Steel MT, UJVNL AE, PTCUL, ASSAM PSC, APPSC, AP TRANSCO AE, Arunachal Pradesh PSC, BPSC, CGPSC, Chandigarh SDE, IP PSC, ISRO SC, JPSC, J&K PSC, Kerala PSC, Karnataka PSC, KPTCL AE, GESCOM AE, Maharashtra PSC, MP PSC, Manipur PSC, Mizoram PSC, Nagaland PSC, Odisha PSC, Punjab PSC, RPSC, Sikkim PSC, TNPSC, TANGEDCO AE, Tamilnadu TRB, Telangana PSC, WB PSC. Chief Editor A.K. Mahajan Compiled by Er. Pradeep Kumar, Er. Pooja Pal Writer & Editor Er. Hari Om Soni (FHons.) Er. Rohit Kumar Singh (Hons.) Computer Graphies by Balkrishna & Charan Singh Editorial Office Youth Competition Times 12, Church Lane Prayagraj-211002 @ Mob. : 9415650134 Email: yetap2@gmaileom website: www.youthbooks.com Publisher Declaration Edited and Published by A.K. Mahajan printed by printing press Om Sai Offs, Prayagra) Youth Competition Times 12, Church Lane, Prayagra} In onder to publish the book, full care has been taken by the editor and the publis Yet it is necessary to present your cooperation and suggestions for In the event of any dispute, the Judicial area will he PrCIVIL ENGINEERING Chapterwise solved Paper VOLUME -I Building Materials Geo-technical Engineering & Foundation Engineering Engineering Mechanics Strength of Materials Structural Analysis Reinforced Concrete Technology Design of Steel Structures Building Construction and Maintenance Engineering Construction Management and Engineering Economics Estimating, Costing & Valuation of Building and Civil Works VOLUME - II Surveying & Engineering Geology Fluid Mechanics Hydraulic Machines & Hydropower Engineering Engineering Hydrology Irrigation & Water Resource Engineering Environmental Engineering Highway Engineering Railway Engineering Airport, Harbour & TunnelINDEX (VOLUME-I) m CIVIL AE, PSC & PSU's Previous Exam Papers Analysis Chart Trend Analysis of Previous Year Papers Through Bar Graph and Pie Chart.. m Building Materi > Building Stones > Bricks, Tiles and Other Clay Products... > Building Lime > Cement > Aggregates, Mortars & Concretes. z > Timber and Wood Based Products «ecco > Paints and Varnishes... > Insulating Materials > Glass and Plastic 1m Geo-technical Engineering and Foundation Engineering (soi Mechanics) nn > Soil Mechanies : An Introduction... z > Basic Definition and Their Relationships > Index Properties of Soil and Their Determination > Classification of Soil > Permeability of Soil > Compaction, Effective Stress, Capillarity, Seepage > Soil Consolidation, Stress Distribution Analysis. > Shear Strength of Soil > Earth Pressure and Retaining Wall > Shallow and Deep Foundation .. > Soil Stabilization. > Soil Exploration > Stability Analysis of Slopes m Engineering Mechanics. ...uo > Forces and force system > Friction > Moment of Inertia & Centre of Gravity > Kinematics & Kinetics of Rigid Body .. > Work, Power and Energy ... > Impulse, Momentum & Collision > Simple Harmonic Motion & Projectile Motion > Principle of Virtual Work & Simple Machines > Miscellaneous : m= Strength of Materials (Solid Mechanics) > Properties of Materials, Stress and Strain . > Bending Moment and Shear Force > Bending and Shear Stress > Combined Direct and Bending Stress > Slope and Deflection > Principal Stress and Principal Planes, Theory of Failure > Columns and Struts. > Torsion and Shear cent... > Thick and Thin Cylinders and Springs .m Structural Analysis 651-761 > Fundamental Structure, Determinacy & Indeterminacy of Structure. 651 > Arches & Suspension Bridges . > Trusses > Frame > Influence line Diagram and Rolling Loads. > Method of Structural Analysis... sual Reinforced Cement Concrete and Pre-stressed Concrete wssnsunosnsnnoan > Plain and Reinforced Cement Concrete .. > Fundamentals of Working Stress Method > Shear and Bond Strengths of Reinforced Concrete Section > Singly and Doubly Reinforced Concrete Beams .. > Reinforced Concrete Slabs. seas > T-Beams > R.C.C. Columns and Column-footings . > Cantilever Retaining Walls > Water Storage Tanks > Fundamentals of Limit State Designs Z > Pre-stressed Concrete 905 m Design of Steel Structures... 930-1036 > Rivet & Bolts Connections .. 930 > Weld Connections 948, > Tension Members ....eensunnseneni a ae 954 > Compression Members 963 > Steel Beams, Plate Girders .. 982 > Column Base and Foundation “1007 > Industrial Roof TRUSS sseinnnnnennnninmnnnninnnnmnnemsnnnnsnnanrinmnnl O16 > Plastic Analysis 1026 i Building Construction and Maintenance Exgineering 1037-1066 > Masonary & Plaster Work ool 037 > Partition and Cavity Walls ... 1047 > Foundation ... 1049 > Doors, Windows and Ventilators 1051 > Arches and Lintels a 1054 > Stairs... 1056 > Floors and Floorings 1060 > Roofs and Roof Covering, 1062 > Miscellaneous 1064 = Construction Management and Engineering Eeonomic: > Project Management and Network Theory ... > PERT & CPM.......... > Crashing of Network, Resource Allocation and CPM Updating cote > Engineering Economy 1100 > Engineering Equipments........ seed LO w Estimating, Costing & Valuation of Building & Civil Works 108-1136 > Building Valuation and Rent Fixation........ " 1108 > Basic Principal and Procedure of Estimating owl LIT > Building, Road and Canal . - 5 ecrenasaal 28 > Miscellaneous 1133 Note: Surveying & Engineering Geology, Fluid Mechanies, Hyeaulie Machines & Hydropower Engineering Engineering Hydrology, Ivigation & Water Resource Engineering, Environmental Engineering Highway Engineering, Railway Engineering, Airport, Harbour & Tunnel. (Study Volume-II)UPPSC Uttar Pradesh Public Service Commission Government of UP, Prayagraj Combined State Engineering Se1 s (General Recruitment/Special Recruitment) Examination-2019 ASSISTANT ENGINEER ‘AE" (€ 15,600 - © 39,100) Grade pay : © 5400-] SI. Name of Name of Essential qualification for the post No. of No. Department Post Vacancies 1. | Irigntion Deptt. | Asst. Engg. | Essential- Must poses a degree in Civil] 171 (Civil) _| Engineering as the case may be, ffom an 2] Minor ivgtion | Asst Engg | ifsitution oF university recongsed by the | —pg sh Cinie® | Government, or be a qualified Associate Member of the instiion of Engineer (India) 3. | Rural Engineering | Asstt.Engg. | Civil Enginocring Branch, as the case may be. 37 Deptt (Civil) Preferential A candidate who has. (i) served “| Public Works Dept. | Asst. Engg. in the Territorial Army fora minimum peviod [108 @wD) (Civil _| oF wo years, or (i obtsined a “B" Ceritieate Eo] Mandi Parishad] Asst Engg] of NC. or (i) Successfully completed one | 3, Cie’ | year training as trainee, shall other things ibeing equal, be given preference in the matter 6 | Housing and Urban] Asst Enge. | of direct recruitment. (iv) Working knowledge | 26 Planning Dept. (Civid | Fitna writen in Devnagr Script. 7. | Nagar Vikas Vibhag | Asst. Engg 24 (Cis & | MedicalDept. | Asst. Engg ‘cis 9. | Panchayati Raj Depit. | Asst. Engg 01 (Cis 10. | migation and Water | _Bhoomi aI Resource Deptt. | Sanrakshan Adhihikari/ Technical Officer 11, | Labour Depa. Asst. Engg, G (Factories) 12. | Nagar Vikas Vibhag | Asst. Engg is (Special Ca.) (ater) 3 (scstiono Category Iatkal EnExamination Pattern and Syllabus ‘The following two objective type papers will be for the Combined State Engineering Services Examination, PAPER Subject No. of Questions | Marks ‘Total Marks | Time General Hindi 25 (Each question of | 75 3 marks) 315 2.30 Hours Main Subject TOO (Each question | 300 (Civil Engg) | of 3 marks) PAPER-IL Subject No. of Questions | Marks Total Marks | Time General Studies | 25 (Each question of | 75 3 marks) 315 2.30 Hours Main Subject 100 (Each question | 300 (Civil Engg-11)__| of 3 marks) Perso = 00 Marks Total = 375+ 375+ 100= 850 Marks SYLLABUS, i - Hindi syllabus will be made in such a way that the candidates under standing of Hindi language and efficient use of words can be checked. Its level will be of high school, General Studies — The question paper of General Studies will include information focusing on eurrent events and their scientific aspects of such things which come in everyday experience and which can be expected from an ‘educated person. The question paper will also included such questions in the history, polities and geography of India, to which candidates will be able to answer without special study. CIVIL ENGINEERING PAPER PART-A. s s SI Units and Dimensions, SI units, vectors, concept of force, Concept of particle and rigid body Concurrent, Non- Concurrent and parallel forces in a plane, moment of force and varignon’s theorem free body diagram, conditions of equilibrium Principle of virtual work, equivalent force system. First and second Moment of area, Mass moment of inertia, Static Friction, inclined plane and bearings, kinematics and kinetics, kinematics in Cartesion and Polar Coordinates, motion under uniform and non-uniform acceleration, ‘motion under gravity, Kineties of particle: Momentum and Energy principles, D’ Alembert’s principle, Collision of clastic bodies, rotation of rigid, bodies, simple harmonic motion. STRENGTH OF MATERIALS ‘Simple Stress and Strain, Elastic constants, axially loaded compression members, Shear force and bending moment, theory of simple bending, bending stress, Shear Stress, Beams of uniform strength, Leaf Spring, close coiled helical springs, Strain Energy in ditect stress, bending & shear. Deflection of beams; Macaulay's method, Mohr's Moment area method, Conjugate beam method, unit load method, Torsion of shafls, Transmission of power, Elastic stability of colurms, Euler's Rankin's and Secant formulae, Principal stresses and strains in two dimensions, Mohr’ Circle, Theories of Elastic Failure, Thin and Thick eylinder, Streses due to internal and external pressure- Lame’ equations. STRUCTURAL ANALYSIS Castiglianio's theorems I and II, Unit load method of consistent deformation applied to beams and pin jointed trusses, Slope-deflection, moment distribution, Kani's method of analysis and column Analogy method applied to indeterminate beams and rigid frames. Rolling loads and influence lines: Influence lines for reactions of beam, shear force and bending moment at a section of beam criteria for maximum shear force and bending moment in beams traversed by a system of moving loads, influence lines for simply supported plane pin jointed trusses, Arches Three hinged, two hinged and fixed arches, rib shortening and temperature effects, influence lines in arches, Matrix methods of analysis: Force method and displacement method of analysis of indeterminate beams and rigid frames. Plastic Analysis of beams and frames: Theory of plastic bending, plastic analysis, statical method, Mechanism method, Unsymmetrical bending: Moment of inertia, product of inertia, position of neutral axis and principal axis, calculation of bending stresses.PART—B DESIGN OF STRUCTURES : STEEL, CONCRETE AND MASONRY STRUCTURES. STRUCTURAL STEEL DESIGN Factors of saféty and load factors, riveted, bolted and welded joints and its connections, Design by working stresslimit state method of tension and compression member, beams of built up section, rivetted and welded plate girders, gantry girders, stancheons with battens and lacings, slab and gussetted column bases, Design ‘ofhighway and railway bridges: Through and deck type plate girder, Warren girder, Prat truss, DESIGN OF CONCRETE AND MASONRY STRUCTURES Reinforced Concrete: Working Stress and Limit State Method of design-Recommendations of B.LS. codes, design of one way and two way slabs, staits-case slabs, simple and continuous beams of reclangular, T and L sections, compression members under direct load with or without eccentricity isolated and combined footings, Cantilever and counter-fort type retaining walls, Water tanks: Design requirements as pet B.LS. code for rectangular and circular tanks resting on ground, Prestressed conerete: Methods and systems of pre-stressing, anchorages, analysis and desiun of sections for flexure based on working stress, losses of pre-sress, Earth quake resistant design of building 4 per BIS code. Design of brick masonry as per I S. Codes, Design of masonry retaining walls PART—C Building Materials, Construction Technology, Planning and Management Building Materials Physical properties of construction materials with respect to their use: stones bricks, tiles, lime, glass, cement, mortars, Concrete, concept of mix design, Pozzolans, plasticizers, super plasticizers, Special concrete: roller compacted concrete, mass coneret, self compacting concrete, Fero cement, Fiber reinforced concrete, high strength concrete, high performance conerete, Timber: properties, defects and common preservation treatments, Use and selection of materials for various uses eg. Low cost housing, mass housing, high rse buildings. Constructions Technology, Planning and Management Masonry constructions using brick, stone, construction detailing and strength characteristics paints, varnishes, plastics, water proofing and damp proofing materials. Detailing of walls, floors, roof’, staircases, doors and ‘windows. Plastering, pointing, flooring, roofing and construction features. Retrofitting of buildings, Principle of planning of building for residents and specific uses, National Building code provisions and uses. Basic principles of Kankar, chalk, limestone, sandstone, shale 6 Granite mainly composed of quartz and feldspar particles, is obtained from (a) Sedimentary rocks (b) Metamorphic rocks () Igncous rocks (a) Voleanic rocks ISRO Scientist/Engincer 2015 © Granite are coarse-grained intrusive igneous rocks that are light in color. They consists 3 major minerals which are: mica, feldspar, and quartz ‘They may be grey, red or pinkish which depends on the size of the grains and concentration of the 3 minerals Granite is largely used in architectural construction and for making ornaments due to its strength and availability in large quantities. ‘Smith’s testis performed to determine: (@) Durability (b) Crushing strength (©) Wear (@)_ Soluble minerals Gujarat PSC AE (N.W.R,) 2020 Haryana PSC AE 2018 Paper-1 GPSCAE Dec 2018 TNPSC AE 2015 UKPSC AE Paper 11 2013 ‘Ans : (d) Smith's Test This is to check whether the stone contains muddy substances. A sample of the stone is Kept is a glass of distilled water and stirred vigorously. Aer 24 hours, it is observed to see the! presence of earthy substances stones containing more ‘carthy substances simply slump, 8. Match List-I with List-I and select the correct answer using the codes given below the list: 7. (a) Metamorphic rock _ (b) Caleateous tock List-l ist A. Smith test 1. Frost resistance B. Brard’ test 2 Durability C. Hardness test 3. Devil's Dz Attrition test 9Codes: Ans. (@) Crashing tex gives engi A BOC D Type of Road or | Aggregate crushing @to2 43 pavements value @3 1 42 Flexible pavement @2 4 13 Soling 30% @2 1 4 3 Water bond macadam 40% HPPSC AE 2016 | [iurinous macadam 40% “Ans. (@) + Smith test determines (durability) presence || PThin pre mix carpet 30% ‘of soluble mats in stones, Brard’ tet is carved out || [For rigid pavement know behavior of tone agains fost action tier thar wearing 7% Mohs sea represent hardness. Surfice or wearing 509% Attrition is dane by Devil's testing machine ‘Stratification ean be seen widely in which of the following rocks? (a) Igneous rocks (6) Metamorphic rocks (e) Sedimentary rocks (d) Fossil rocks GPSC AE (CLASS 1 & 2) 2019 ‘Ans : (©) Stratification of rocks > Sedimentary rocks, Common Sedimentary rock include such as shale limestone, and sind stone often starts as a sediment carried in river and deposited in lakes and ‘oveans then after sometime if form rock 10, Metamorphic rocks are the rocks which are formed (2) when molten lava (magma) cools and tums to solid rock () when heat and pressure are applied on the rocks (©) when small pieces of rocks are pressed together over a period of time due to the gradual erosion of the earth surface GPSC AE (CLASS 1 & 2) 2019 ‘Ans : (b) Melamonphic rocks are formed by the physical or chemical alternation by heat and pressure fof sedimentary rock formed into a denser form. It include anthracite, quartzite, marble, slate gneiss (Anthracite is a type of coal of high carbon content), {ew impurities and high lusture. 11, Which of the following isa significant constituent of sedimentary rock ? (a) magnetite (b) hematite (©) calcite (a) halite GPSC AE March 2018 ‘Ans. (© The dominent constitutents of sedimentary rocks are: () Quartz (Si0;) (Gi) Calcite (CaCOs) i) Clay (iv) Rock fragments @ 13, Thumb-nail and knife scratching test is fo determine (a) Hardness of stone (b) Toughness of stone (c) Strength of conerete (@) Durability of concrete TNPSCAE 2018 ‘Ans. (a) : Thumb-nail and knife seratching are used to dotermine hardness of brick in general. Knife scratching can also be used to determine hardness of | stone Hardness is defined as resistance to scratching and indentation. 14. Which of the following test is used to determine the rate of wear of stones? (a) Crushing test (b) Abrasion test () Attrition test (a) Impact test OPSC AEE 2019 Paper-I SJVNLET 2019 Ans. (@) : To detetmine the rate of wear of stones Aitrition Testis done using Deval’s testing machine. => Crushing Test : Aggregate crushing value test on coarse aggregates gives @ relative measure of the resistance of an aggregate crushing under gradually applied compressive load. Aggregate crushing value is a ‘numerical index of the strength of the aggregate ‘and it is used in construction of roads and pavements, => Abrasion Test : Abrasion Test is the measure of aggregate toughness and abrasion resistance such as crushing, degradation and disintegration, => Impact Test: ‘The aggregate impact test value is a measure of resistance to sudden impact or shock, which may vary from its resistance to gradually applied ‘compressive load. 12, What is determined by conducting an abrasion test? (2) aggregate crushing value (b) toughness (©) hardness (@) soundness Kerala PSCAE 2015 5 Impact value of stone for road work specified is (a) wearing coat-30% (b) bituminous macadam-35% (c) water-bound macadam-40%/ (@) Allofthe above BPSCAE Pre 2018 20Ans, (Oh The apareeaves Should TheeTore have ]|19. Harness ofthe stones can be tested by tuffcient loughness fo esi their disintegration due inthe laboratory. to imoect. This cheracteistic is measured by impact (a) Impact strength (b) Abrasion strength value tes (6) Mohs scale {Crushing strength “naregave Maharashtra PSC Mains 2018 Paper-1 si ssa “Ans: (@) Tea on stone : Property No. ‘Type'at pavement (a) Impact strength Toughness smorethan ||/(b) Abrasion strength Wear and tear [Wenig Cone () Mots seale Hardness | Bituminous surice desing (6) Groshing strength _: Strength . | Penetration macadam 30 20. The rate of loading applied in crushing [Bituminous carpe conc strength testis a [Cement concrete (2) IDtoneminate (b) 40 tonnelminate Z| Bitumen bound read base | 5 (©) 20tonne/minute (€) 400 tonneminute couse 3 UIVNL AE 2016 WBM bass course wih “Ans (by 7 The rate of loading applied in. crushing 3. bitumen surfacing 0 strength test is 40 tonne/minute. 4. Cement concrete base course 45 20. A simple field test carried out to determine 16. The water absorption of a good building stone, deterioration of stones when immersed in water by welght after 24 hours immersion in waterb| ——ffqeg'ne not more tha (a) Absorption est (b) Moh’ hardnes tet DMRC AM 2017 (c) toughness test (d) Smith's test JURESC ‘State Eng. A.E. 2011] GPSC AE January 2018 good building stone should not absorb water | ee ee ee eee he some to more than tality of stone as tes inder water. more tam ins fo) 15% (a) 25% | [stint quay of sone est under wat TUPPSC State Eng. A.E. 200410] [UPPSC State Eng. A.E. 2008] ‘Ans : (a) The water absorption of good building stone depends upon porosity of stone. The permissible water | absomption for a good building stone by weight after 24 | hours immersion in water should not be more than 5%. ¥7. The maximum allowable Los Angeles abrasion value for high quality surface course is (a) 30% (b) 30% (©) 25% (a) 80% [UPPSC State Eng. A.E. 2008 Ans = (b) The maximum allowable Los Angeles abrasion value for high quality surface course is 30%. Maximum value of 400% is allowed for WBM. base course. For bituminous conerete, a maximum valve off 35% is specified. 18, Mobs scale is used for stones to determine : (a) Flakiness index (b) Durability (©) Strength (a) Hardness ESE 2020| (Ans. (@) : Moh’s hardness, rough measure of the resistance of a smooth surface to scratching or abrasion, | expressed in terms of a scale by the German| ‘mincralogist Friedrich Mo's. ‘Moh's Hardness Seale Mineral Moh's Hardness Tale Gypsum Caleite Fluorite Apatite Orthoclase Quanz Topaz Corundum, 21, In ease of building stones, the test that is used to find the presence of soluble organic matter inside the stone is : (a) Brard’ test, (b) Acid test (c) Crystallization test (d) Smith test DMRCAM 20: ‘Ans. (@) Smith test is done to find the presence of| soluble organic matter inside the stone. 2. -d on the rock mass rating (RMR), a rock having a value ranging between 41-60 will be rated a (a) Very poor (b) Poor (c) Fair (@) Good (e) Very good CGPSCAE Shift -22014 ‘Ans. Rock mass class (RMC) | Rock mass rating (RMR) Very good rock 31-100 Gi) Good rock 61-80 (Gil) Fair rock. 41-60 iv) Poor rock 21-40 (¥) Very poor rook 20. 23, _ Fossils ean occur only in (a) igncous rocks (b) sedimentary rocks (c) metamorphic rocks (a) gneiss rocks GPSC AE January 2018 ‘Ans. (b) + Sedimentary rocks are contain fossils because unlike most igneous and metamorphic rocks, they form at temperature and pressure that do not destroy fossil remains. 24, In which of the following sedimentary rocks, stratification is vague or unnoticeable? (a) shale (b) sandstone (c) limestone (@) coal seams Diamond GPSC AE January 2018 2‘Ans, (@ + Limestone is a sedimentary rocks, stratification is vague or unnoticeable, [Ans + (a) Sand stone isa sedimentary rocks are formed ldue to gradual deposition of materials. Sand. size| (0.0625 to 2 mm) strength 650 kyem or 35 to 5S MPa| 2a Cola Th (cthed af foe aton) ot |[sBesitic gravity is 2.65 to 2.95 and water absorption S| Column IIL (example of rock) is [oho a 24 hours. Column t | Column 1 Coummm Ht}? Spalling hammer & used for Pelgnesus —[ L. Deposition oF [X Marble (a). driving wooden headed chiese! layers in water (b) carving of stones bodies followed by (6) rough dressing of stones intense pressure (@) breaking small projection of stones ‘O-MeEampHIE ] ME. Voleanie scl V.Granie GUIRAT PSC AE - 112017 aioe an ‘Ans : (€) Spalling hammer is used for rough dressing of] RSedimentary | N. Formed from |Z Dolomite | Stones. ater Tock pes 30. Laterite is used in due ta Beat or @) carving and omamental works pressure or both () fie resistance works (a) PMX, QLY, RNZ (by) PNY, QMZ, RLX (c) electrical switch boards: (©) PMY, QNX,RLZ — (d) PLZ, ONY. RMX (d)_heavy engineering works GPSCAE January 2018 Maharashira PSC Paper-I 2012 ‘Ans. ©: [Ans : (a) Laierte is used for exterior work of building, Tgncous rocks are formed by cooling action of lava ‘extracted from voleanos. Granite isan example. Sedimentary rocks are stratified rocks formed by dcposition of soil layers in river body. Example ~ Dolomite. + Metamorphic rocks are formed by a long term change in other rocks due to intense heat and pr. Example - Marble, [carving and ornamental works, culverts and road works. Laterte is porous. 31, Which of the following has more fire resisting characteristics? (@) Marble (b) Lime stone (©) Compacted sandstone (d) Grani UKPSCAE Paper If 2013 Karnataka PSC AE 2015 Paper - II (Sand, quartize) Caleatious rocks (mainly oxide of Ca) carobonate of| lime ‘Augillacious - clay minerals, 27. Marble is a; (a) Igneous rock (b) Sedimentary rock (©) Metamorphic rock (a) Granite rock GWSSB AAE 2015 (RPSC AE (GWD) 2014) F (©) Marble is a metamorphic rock of calcarious variety. It's specific gravity is 2.65 and available in| ‘many colours. Itis very hard and takes a fine polish, It is used for carving and decoration work. ‘Metamorphic rocks forms when sandstone or igneous rocks are subjected to heat and pressure of| metamorphism. 28, Sand stone is (a). Sedimentary rock (©) Igneous rock (b) Metamorphic rock (a) Voleanic rock OPSC AE Paper- 2016 OPSC AEE 2015 PAPER 36 Correst match of Colom 1 (ehemeal | 377 Sond aon na eo eree Classification of rocks) with Column TI (main} fy Ise mmunly somposod of quits, lie and ica miperals contained in Se rock is iT Its specific gravity is 2.65 to, 2.95 and compressive oe. ee strength varies from 650 kg/cm’. its water absorption is) P-Sificious rocks mci ‘> Argllcius oo [>a quartz [S610 806 aay ana Te The stone whose crushing srnath (a) P-2, 0-3, RI (b) P-3. O41, Re (@ granite (b) chalk (©) P-,Q3,R2 (d) P2, 0-1 Re (stato (a) marble GPSC AE January 2018 Maharashtra PSC 2015 (Paper-I) Mains “Ans a) £ Sitous Fook faving mainly silica content ‘Ans. (a) ? Granite is an igneous rock and hence posses high crushing strength. Chalk has the lowest crushing strength of the above four 33. Most of the stones possess the specific gravity in the range of __: @ 1t015 (b) 151020 (©) 241028 (@) 3104 GPSC AE March 2018 UK combined AE Paper 11 2012) [Ans = (6) Specific gravity (also known as “relative] density) is the ratio between the weight of a stone in ai| land the weight of equal volume of water, Maximum stone specific gravity range 2.4 - 2.8. IEx:- Sand stone specific gravity 34, A heavy stone is sultable for: (UPPSC Civil Eng. A.E. 201300] OR A heavy stone is suitable for the construction of (@) Arches (b) Rubble masonry (©) Roads (@) Retaining walls [UPPSC State Eng. A.E. 2004()] Untarakhand Combined State AE Paper I 2007, [UPPSC State Eng. A.E. 2008) 2m‘Ans : (d) Retaining walls, retains soil fills which exents| lateral carth pressure. Thus the retaining wall must be hheavy (i.e more in weight). Hence a heavy stone is most suitable for retaining walls. 35, The crushing strength of a good building stone should be more than- (@) SOMPa (b) LooMPa (©) 150MPa (a) 200MPa (UPPSC State Eng. A.E, 2003] WBPSC AE 2016 (ESE 1998) ‘Ans + (b) Crushing srengih of good building stone should be more than 1000 ker or 100 MPa. 36. Which of the following i used for decorative work in buildings? (@) Granite (©) Basa (6) Slate (@) Diamond [Uttarakhand Combined State_AE Paper I 2007}) ‘Ans + (a) Granite is an igneous rock, It is: mainly composed of quartz. Felspar and mica. Its specific gravity is 2.64 and compressive strength Varies from 77 to 130 MPa, Water absorption isles than 1% Easily polished and worked, It is mainly composed of silica is 60 ~ 80% quantity 37. In stone masonry, stones are so placed that the direction of pressure is~ Rajasthan VP 171 2018) Vieag steel MT 2017 OR The pressure acting on the stones in stone masonry construction should be: (a) Along the direction of bedding planes (b) At 60° to the direction of bedding planes (©) At45°to the direction of bedding planes (d) Perpendicular to the direction of bedding planes (©) None of the above options Haryana PSC AE 2018 Paper-1 RPSCA En, 2013 ‘Ans. (@) : Stones in the stone masonry are laid such that the pressure acting on the stones is perpendicular to the natural bed of the stones 38. Granite contains primarily (a) Quartz (b) Quartz and felspar (©) Mica (@) Quartz and mica WBPSC AE 2012 ‘Ans. (b) : Granite is an igneous rock. It is mainl composed of quartz. Felspar and mica. lis. speci gravity is 2.64 and compressive strength varies from 77 to 130 MPa, Water absorption is less than 1 %, Easily polished and worked. It is mainly composed of Ans. (b) : Rock quality, designation E length of core in pieces > 10em an total core rua length 441 1422-412 100 =81% (Excellent) 100 100 0, The specific gravity of quartz br (a) 2.85 (b) 2.80 () 291 (@) 2.72 (©) 2.65 Haryana PSE AE Paper.2 2018 ‘Ans. (©): Sp. gravity of quartz 2.65, Sp. gravity of ealeite —> 3.71 Sp. gravity of Dolomite — 2.85-2.95 Sp. gravity of silica glass — 2.21 Sp. gravity of Glass —> 2.4-3 20 41, Chemically, marble 8 wow. FOCK. (a) Caleareous (b) Metamorphic (c) Argillacious {@) Silicious WBPSC AE 200: ‘Ans. (a) = 42, Which position of natural bed of stone relative to direction of pressure ensures /maximum strength ? (a) Perpendicular (b) Parallel (c) Oblique (@) None of the above Rajasthan JEN (Degree) Shit - 11 2016 Ans. (a) Perpendicular position of natural bed of stone relative to direction of pressure ensures-maximum strength. 43, The tendency of a stone is, to split along ~ (a) Texture (6) Fracture (©) Cleavage (@) Structure RPSC AE 2018 Ans. (@) The tendency of a stone i, to split along cleavage, 44. Quartzite isa (a) silicious rock (b) argillaceous rock (c) caleareous rock (d) aqueous rock WBPSC AE 2007 ‘Ans. (a) 4, Which of the following is not carbonate ‘mineral? (a) Dolomite (b) Calcite (c) Magnesite (@) Halite GPSCAE Class (162) Paper - 2201 ‘Ans. (= © Dolomite is an anhydrous carbonate mineral composed of calcium magnesium carbonate. Caleite is carbonate mineral and most. stable polymomph, ‘Magnesite the mineral magnesium carbonate and a member of calcite group of carbonate minerals. Halite is rock salt, the mineral form of Sodium sili 8 60 ~ 80% quantity Choride 39. Tn a core drilled for 100m, the folowing | 6. Maximum permissible wear in ones Tor Foad fragments were obtained 24 em, 12,11,9,22,8| "work 12 and loose rock. The ROD of the rock is : (a) 4% (b) 2% (a) 17% (b) 81% (c) 1% (d) 3% (c) 2% (d) 22% Rajasthan JEn (Degree) 2016 © 8% ‘Ans, (B)_Maximom pennissible wear in stones for CGPSCAE Shitt- 2 2014 oad work is 2%, w