{"id":1599,"date":"2017-04-24T10:09:38","date_gmt":"2017-04-24T04:39:38","guid":{"rendered":"http:\/\/onlinecivilforum.com\/site\/?p=1599"},"modified":"2022-12-13T11:33:58","modified_gmt":"2022-12-13T06:03:58","slug":"civil-engineering-competitive-questions-part-1","status":"publish","type":"post","link":"https:\/\/onlinecivilforum.com\/site\/civil-engineering-competitive-questions-part-1\/","title":{"rendered":"Civil Engineering Competitive Questions Part 1"},"content":{"rendered":"<p><strong>Civil Engineering Competitive Questions<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Select the incorrect statement\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 R.C.C has better fire resistance than steel<\/p>\n[ B ]\u00a0\u00a0\u00a0 R.C.C. structure is economical than steel structure<\/p>\n[ C ]\u00a0\u00a0\u00a0 Strength of concrete decreases as age increases<\/p>\n[ D ]\u00a0\u00a0\u00a0 R.C.C can be used for under water and marine structures<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Water cement ratio is the ratio of\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Water to cement by weight<\/p>\n[ B ]\u00a0\u00a0\u00a0 Water to cement by volume<\/p>\n[ C ]\u00a0\u00a0\u00a0 Cement to water by weight<\/p>\n[ D ]\u00a0\u00a0\u00a0 Cement to water by volume<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Concrete is\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Weak in tension<\/p>\n[ B ]\u00a0\u00a0\u00a0 Strong in tension<\/p>\n[ C ]\u00a0\u00a0\u00a0 Strong in both tension and compression<\/p>\n[ D ]\u00a0\u00a0\u00a0 Weak in compression<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The entrained air in concrete\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Increases the strength<\/p>\n[ B ]\u00a0\u00a0\u00a0 Decreases the resistance to weathering<\/p>\n[ C ]\u00a0\u00a0\u00a0 Increases the workability<\/p>\n[ D ]\u00a0\u00a0\u00a0 Decreases the workability<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Concrete is unsuitable for compaction by vibration if it is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Semi \u2013 plastic<\/p>\n[ B ]\u00a0\u00a0\u00a0 Plastic<\/p>\n[ C ]\u00a0\u00a0\u00a0 Earth moist<\/p>\n[ D ]\u00a0\u00a0\u00a0 Dry<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The strength and quality of concrete depends upon\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p>(i)Grading of aggregates<\/p>\n<p>(ii)Shape of aggregates<\/p>\n<p>(iii)Surface area of aggregates<\/p>\n<p>(iv)Surface texture of aggregates<\/p>\n[ A ]\u00a0\u00a0\u00a0 i, ii and iv<\/p>\n[ B ]\u00a0\u00a0\u00a0 ii, iii and iv<\/p>\n[ C ]\u00a0\u00a0\u00a0 i, iii and iv<\/p>\n[ D ]\u00a0\u00a0\u00a0 i, ii, iii and iv<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In order to avoid segregation, fresh concrete should be dropped from a height of\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Less than one meter<\/p>\n[ B ]\u00a0\u00a0\u00a0 Less than two metres<\/p>\n[ C ]\u00a0\u00a0\u00a0 More than one metre<\/p>\n[ D ]\u00a0\u00a0\u00a0 More than two metres<\/p>\n<p>Answer : A<\/p>\n<p>9\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The process of hardening of concrete in the presence of water is called<\/p>\n[ A ]\u00a0\u00a0\u00a0 Creep<\/p>\n[ B ]\u00a0\u00a0\u00a0 Hydration<\/p>\n[ C ]\u00a0\u00a0\u00a0 Shrinkage<\/p>\n[ D ]\u00a0\u00a0\u00a0 Curing<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The process of keeping the concrete structure moist is called\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Hydration<\/p>\n[ B ]\u00a0\u00a0\u00a0 Curing<\/p>\n[ C ]\u00a0\u00a0\u00a0 Creep<\/p>\n[ D ]\u00a0\u00a0\u00a0 Shrinkage<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>11\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The separation of water or water cement mixture from the freshly laid concrete is known as<\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Workability<\/p>\n[ B ]\u00a0\u00a0\u00a0 Segregation<\/p>\n[ C ]\u00a0\u00a0\u00a0 Bleeding<\/p>\n[ D ]\u00a0\u00a0\u00a0 Creep<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>12\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The continuous strain, which the concrete undergoes due to application of external loads is <\/strong><\/p>\n<p><strong>called\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Creep<\/p>\n[ B ]\u00a0\u00a0\u00a0 Bleeding<\/p>\n[ C ]\u00a0\u00a0\u00a0 Workability<\/p>\n[ D ]\u00a0\u00a0\u00a0 Segregation<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>13\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The process of conversion of plastic concrete to solid stage is called\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Hydration<\/p>\n[ B ]\u00a0\u00a0\u00a0 Hardening<\/p>\n[ C ]\u00a0\u00a0\u00a0 Setting<\/p>\n[ D ]\u00a0\u00a0\u00a0 Curing<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>14\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 At 28 days of curing concrete attains a strength of\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 20 to 25%<\/p>\n[ B ]\u00a0\u00a0\u00a0 60 to 70%<\/p>\n[ C ]\u00a0\u00a0\u00a0 65 to 80%<\/p>\n[ D ]\u00a0\u00a0\u00a0 90 to 95%<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>15\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In a mass concrete, the aggregates occupy a space of\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 25%<\/p>\n[ B ]\u00a0\u00a0\u00a0 75%<\/p>\n[ C ]\u00a0\u00a0\u00a0 40%<\/p>\n[ D ]\u00a0\u00a0\u00a0 60%<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>16\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The coarse aggregate which possess the property of good interlocking are\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 rounded shape<\/p>\n[ B ]\u00a0\u00a0\u00a0 elongated shape<\/p>\n[ C ]\u00a0\u00a0\u00a0 angular shape<\/p>\n[ D ]\u00a0\u00a0\u00a0 none of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>17\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 While placing of concrete the thickness of each layer for R.C.C. is\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 150 to 300 mm<\/p>\n[ B ]\u00a0\u00a0\u00a0 450 mm<\/p>\n[ C ]\u00a0\u00a0\u00a0 500 to 750 mm<\/p>\n[ D ]\u00a0\u00a0\u00a0 500 mm<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>18\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Increase in water content in a cement concrete\u00a0 <\/strong><\/p>\n<p>(i) Increases workability<\/p>\n<p>(ii) Increases the strength<\/p>\n[ A ]\u00a0\u00a0\u00a0 i<\/p>\n[ B ]\u00a0\u00a0\u00a0 ii<\/p>\n[ C ]\u00a0\u00a0\u00a0 both (i) and (ii)<\/p>\n[ D ]\u00a0\u00a0\u00a0 neither (i) nor (ii)<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>19\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Slump cone test is used to determine\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Shrinkage of concrete mix<\/p>\n[ B ]\u00a0\u00a0\u00a0 Creep of concrete<\/p>\n[ C ]\u00a0\u00a0\u00a0 Workability of concrete mix<\/p>\n[ D ]\u00a0\u00a0\u00a0 Soundness of concrete<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>20\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 While determining the workability of concrete mix, the compaction factor test is &#8212;&#8212;than the <\/strong><\/p>\n<p><strong>slump cone test\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Less accurate<\/p>\n[ B ]\u00a0\u00a0\u00a0 More accurate<\/p>\n[ C ]\u00a0\u00a0\u00a0 Approximate method<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>21\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Workability of concrete mix with low water cement ratio is determined by\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Tensile strength test<\/p>\n[ B ]\u00a0\u00a0\u00a0 Slump cone test<\/p>\n[ C ]\u00a0\u00a0\u00a0 Compaction factor test<\/p>\n[ D ]\u00a0\u00a0\u00a0 Flexural strength test<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>22\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 If the slump of a concrete mix is 50 to 100 mm, its workability is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0 \u00a0Very low<\/p>\n[ B ]\u00a0\u00a0\u00a0 Low<\/p>\n[ C ]\u00a0\u00a0\u00a0 Medium<\/p>\n[ D ]\u00a0\u00a0\u00a0 High<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>23\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 A compaction factor of 0.75 indicates ________workability\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Very low<\/p>\n[ B ]\u00a0\u00a0\u00a0 Low<\/p>\n[ C ]\u00a0\u00a0\u00a0 Medium<\/p>\n[ D ]\u00a0\u00a0\u00a0 High<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>24\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Shrinkage in concrete can be reduced by using\u00a0 <\/strong><\/p>\n<p>(i) Low water cement ratio (ii) More amount of cement in the concrete<\/p>\n<p>(iii) Presaturated aggregates<\/p>\n[ A ]\u00a0\u00a0\u00a0 i<\/p>\n[ B ]\u00a0\u00a0\u00a0 i and ii<\/p>\n[ C ]\u00a0\u00a0\u00a0 i and iii<\/p>\n[ D ]\u00a0\u00a0\u00a0 i, ii and iii<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>25\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The process of proper and accurate measurement of concrete ingredients for uniformity of <\/strong><\/p>\n<p><strong>proportion, is known as\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Curing<\/p>\n[ B ]\u00a0\u00a0\u00a0 Mixing<\/p>\n[ C ]\u00a0\u00a0\u00a0 Grading<\/p>\n[ D ]\u00a0\u00a0\u00a0 Batching<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>26\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Select incorrect statement from the following\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 With passage of time, the strength of cement decreases<\/p>\n[ B ]\u00a0\u00a0\u00a0 With passage of time, the strength of cement increases<\/p>\n[ C ]\u00a0\u00a0\u00a0 After a period of 24 months, the strength of cement reduces to 50%<\/p>\n[ D ]\u00a0\u00a0\u00a0 The concrete made with storage deteriorated cement; gains strength with\u00a0\u00a0\u00a0\u00a0 time.<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>27\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For compacting plain concrete road surface of thickness less than 20 cm, the following <\/strong><\/p>\n<p><strong>vibrator is used.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Internal vibrator<\/p>\n[ B ]\u00a0\u00a0\u00a0 Screed vibrator<\/p>\n[ C ]\u00a0\u00a0\u00a0 Form vibrator<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>28\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Slump test of concrete is a measure of its\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Consistency<\/p>\n[ B ]\u00a0\u00a0\u00a0 Compressive strength<\/p>\n[ C ]\u00a0\u00a0\u00a0 Tensile strength<\/p>\n[ D ]\u00a0\u00a0\u00a0 Impact value<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>29\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Concrete gains strength due to\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Chemical reaction of cement with sand and coarse aggregates<\/p>\n[ B ]\u00a0\u00a0\u00a0 Evaporation of water from concrete<\/p>\n[ C ]\u00a0\u00a0\u00a0 Hydration of cement<\/p>\n[ D ]\u00a0\u00a0\u00a0 All the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>30\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Minimum grade of concrete for R.C.C. should be _________ , as per IS. 456-2000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 M10<\/p>\n[ B ]\u00a0\u00a0\u00a0 M14<\/p>\n[ C ]\u00a0\u00a0\u00a0 M20<\/p>\n[ D ]\u00a0\u00a0\u00a0 M25<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>31\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 A concrete mass containing 5% of voids\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Increases its strength by 30%<\/p>\n[ B ]\u00a0\u00a0\u00a0 Reduces its strength by 30%<\/p>\n[ C ]\u00a0\u00a0\u00a0 Increases its strength by 5%<\/p>\n[ D ]\u00a0\u00a0\u00a0 Reduces its strength by 5%<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>32\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Workability of a concrete \u2013 mix is determined by\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p>(i)Slump cone test<\/p>\n<p>(ii)Compaction factor test<\/p>\n<p>(iii)Vee bee test<\/p>\n[ A ]\u00a0\u00a0\u00a0 i<\/p>\n[ B ]\u00a0\u00a0\u00a0 ii<\/p>\n[ C ]\u00a0\u00a0\u00a0 i and ii<\/p>\n[ D ]\u00a0\u00a0\u00a0 i, ii and iii<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>33\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 High strength of concrete requires a water cement ratio of\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.10 to 0.15<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.25 to 0.30<\/p>\n[ C ]\u00a0\u00a0\u00a0 0.45 to 0.60<\/p>\n[ D ]\u00a0\u00a0\u00a0 0.75 to 0.90<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>34\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 One bag of cement is equivalent to\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 50 litres<\/p>\n[ B ]\u00a0\u00a0\u00a0 35 litres<\/p>\n[ C ]\u00a0\u00a0\u00a0 28 litres<\/p>\n[ D ]\u00a0\u00a0\u00a0 14 litres<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>35\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 One cubit metre of cement weights\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 1000 kg<\/p>\n[ B ]\u00a0\u00a0\u00a0 1200 kg<\/p>\n[ C ] \u00a0\u00a0\u00a01440 kg<\/p>\n[ D ]\u00a0\u00a0\u00a0 1600 kg<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>36\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As per IS: 456-2000, modulus of elasticity of concrete (in N\/mm2) is given by\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 5700 vfCK<\/p>\n[ B ]\u00a0\u00a0\u00a0 5000 vfCK<\/p>\n[ C ]\u00a0\u00a0\u00a0 3700 vfCK<\/p>\n[ D ]\u00a0\u00a0\u00a0 3000 vfCK<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>37\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In working stress method of design, the factor of safety for concrete and steel respectively <\/strong><\/p>\n<p><strong>are\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 3.0 and 1.8<\/p>\n[ B ]\u00a0\u00a0\u00a0 3.0 and 1.18<\/p>\n[ C ]\u00a0 \u00a0\u00a03.0 and 1.15<\/p>\n[ D ]\u00a0\u00a0\u00a0 1.5 and 1.5<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>38\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In Limit state method of design, the factor of safety for concrete and steel respectively are<\/strong><\/p>\n<p>&nbsp;<\/p>\n[ A ]\u00a0\u00a0\u00a0 3.00 and 1.80<\/p>\n[ B ]\u00a0\u00a0\u00a0 1.50 and 1.18<\/p>\n[ C ]\u00a0\u00a0\u00a0 1.50 and 1.15<\/p>\n[ D ]\u00a0\u00a0\u00a0 1.50 and 1.50<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>39\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Specific weight of Reinforced cement concrete is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 24 N\/m3<\/p>\n[ B ]\u00a0\u00a0\u00a0 24 kN\/m3<\/p>\n[ C ]\u00a0\u00a0\u00a0 25 N\/m3<\/p>\n[ D ]\u00a0\u00a0\u00a0 25 kN\/m3<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>40\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The tensile strength of concrete is about ________ of its compressive strength\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 10% to 15%<\/p>\n[ B ]\u00a0\u00a0\u00a0 30% to 40%<\/p>\n[ C ]\u00a0\u00a0\u00a0 50%<\/p>\n[ D ]\u00a0\u00a0\u00a0 60% to 75%<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>41\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The shrinkage strain of concrete is generally taken as\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.3<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.03<\/p>\n[ C ]\u00a0\u00a0\u00a0 0.003<\/p>\n[ D ]\u00a0\u00a0\u00a0 0.0003<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>42\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The tensile strength of concrete is given by\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.45 vfCK<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.60 vfCK<\/p>\n[ C ]\u00a0\u00a0\u00a0 0.70 vfCK<\/p>\n[ D ]\u00a0\u00a0\u00a0 0.90 vfCK<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>43\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The ratio of bond stress for HYSD bars to that of plain bars\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.714<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.9<\/p>\n[ C ]\u00a0\u00a0\u00a0 1.4<\/p>\n[ D ]\u00a0\u00a0\u00a0 1.8<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>44\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The proof stress in steel is the stress corresponding to the strain of\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.2<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.02<\/p>\n[ C ]\u00a0\u00a0\u00a0 0.002<\/p>\n[ D ]\u00a0\u00a0\u00a0 0.0002<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>45\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In the mixer, the concrete should be mixed for at least\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 1 to 2 minutes<\/p>\n[ B ]\u00a0\u00a0\u00a0 2 to 3 minutes<\/p>\n[ C ]\u00a0\u00a0\u00a0 3 to 5 minutes<\/p>\n[ D ]\u00a0\u00a0\u00a0 5 to 7 minutes<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>46\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As per IS: 456-2000, the maximum size of aggregate is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 1\/4 of maximum thickness of member<\/p>\n[ B ]\u00a0\u00a0\u00a0 1\/4 of minimum thickness of member<\/p>\n[ C ]\u00a0\u00a0\u00a0 1\/5 of maximum thickness of member<\/p>\n[ D ]\u00a0\u00a0\u00a0 1\/5 of minimum thickness of member<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>47\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Water used for mixing of concrete should be free from\u00a0 <\/strong><\/p>\n<p>(i)Oils<\/p>\n<p>(ii)Salts<\/p>\n<p>(iii)Acids<\/p>\n[ A ]\u00a0\u00a0\u00a0 i<\/p>\n[ B ]\u00a0\u00a0\u00a0 iii<\/p>\n[ C ]\u00a0\u00a0\u00a0 i and iii<\/p>\n[ D ]\u00a0\u00a0\u00a0 i, ii and iii<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>48\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Modulus of elasticity of concrete is primarily influenced by\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Elastic properties of aggregate<\/p>\n[ B ]\u00a0\u00a0\u00a0 Curing of concrete<\/p>\n[ C ]\u00a0\u00a0\u00a0 Age of concrete<\/p>\n[ D ]\u00a0\u00a0\u00a0 Mix proportion and type of cement<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>49\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As the workability increases compaction factor\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Decreases<\/p>\n[ B ]\u00a0\u00a0\u00a0 Increases<\/p>\n[ C ]\u00a0\u00a0\u00a0 Remains same<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>50\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Shrinkage of concrete is mostly influenced by\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Environmental conditions<\/p>\n[ B ]\u00a0\u00a0\u00a0 Size of member<\/p>\n[ C ]\u00a0\u00a0\u00a0 Cement in concrete<\/p>\n[ D ]\u00a0\u00a0\u00a0 The total amount of water present in concrete<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>51\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 During the process of hardening of cement, _______ will takes place\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Bleeding<\/p>\n[ B ]\u00a0\u00a0\u00a0 Segregation<\/p>\n[ C ]\u00a0\u00a0\u00a0 Hydration<\/p>\n[ D ]\u00a0\u00a0\u00a0 All the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>52\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Due to Bleeding action concrete becomes\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Weak<\/p>\n[ B ]\u00a0\u00a0\u00a0 Strong<\/p>\n[ C ]\u00a0\u00a0\u00a0 Hard<\/p>\n[ D ]\u00a0\u00a0\u00a0 Durable<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>53\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 About 70% to 80% of cement is contributed by\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Tricalcium silicate and Tricalcium aluminate<\/p>\n[ B ]\u00a0\u00a0\u00a0 Tricalcium silicate and Dicalcium silicate<\/p>\n[ C ]\u00a0\u00a0\u00a0 Tricalcium Aluminate and Dicalcium silicate<\/p>\n[ D ]\u00a0\u00a0\u00a0 Tricalcium Aluminate and Tetra calcium Aluminoferrite<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>54\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 When compared to ordinary Portland cement, Rapid hardening Portland cement contains <\/strong><\/p>\n<p><strong>______________ amount of lime content\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Equal<\/p>\n[ B ]\u00a0\u00a0\u00a0 Greater<\/p>\n[ C ]\u00a0\u00a0\u00a0 Lesser<\/p>\n[ D ]\u00a0\u00a0\u00a0 Zero<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>55\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The following compound has the property of early strength as well as ultimate strength\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 C3S<\/p>\n[ B ]\u00a0\u00a0\u00a0 C2S<\/p>\n[ C ]\u00a0\u00a0\u00a0 C3A<\/p>\n[ D ]\u00a0\u00a0\u00a0 C4AF<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>56\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Which of the following compounds is considered to be an undesirable compound for cement<\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 C3S<\/p>\n[ B ]\u00a0\u00a0\u00a0 C2S<\/p>\n[ C ]\u00a0\u00a0\u00a0 C3A<\/p>\n[ D ]\u00a0\u00a0\u00a0 C4AF<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>57\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Which of the following compound is susceptible to be attached by alkalies and salts\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 C3S<\/p>\n[ B ]\u00a0\u00a0\u00a0 C3S<\/p>\n[ C ]\u00a0\u00a0\u00a0 C3A<\/p>\n[ D ]\u00a0\u00a0\u00a0 C3AF<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>58\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The heat generated in ordinary cement at the end of 3 days is about\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 60 cal\/g<\/p>\n[ B ]\u00a0\u00a0\u00a0 80 cal\/g<\/p>\n[ C ]\u00a0\u00a0\u00a0 100 cal\/g<\/p>\n[ D ]\u00a0\u00a0\u00a0 120 cal\/g<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>59\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Low heat cement contains more amount of __________ than that of ordinary Portland <\/strong><\/p>\n<p><strong>cement\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 C3S<\/p>\n[ B ]\u00a0\u00a0\u00a0 C2S<\/p>\n[ C ]\u00a0\u00a0\u00a0 C3A<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>60\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In Portland Blast furnace slag cement, the blast furnace slag content shall not exceed\u00a0\u00a0\u00a0 \u00a0<\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 50%<\/p>\n[ B ]\u00a0\u00a0\u00a0 65%<\/p>\n[ C ]\u00a0\u00a0\u00a0 80%<\/p>\n[ D ]\u00a0\u00a0\u00a0 90%<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>61\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 White cement contains less amount of ___________\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Lime<\/p>\n[ B ]\u00a0\u00a0\u00a0 Silica<\/p>\n[ C ]\u00a0\u00a0\u00a0 Alumina<\/p>\n[ D ]\u00a0\u00a0\u00a0 Iron oxide<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>62\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In fineness test on cement, residue left on I.S. sieve no.9 shall not exceed __________ by <\/strong><\/p>\n<p><strong>weight of the sample of cement\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 5%<\/p>\n[ B ]\u00a0\u00a0 \u00a010%<\/p>\n[ C ]\u00a0\u00a0\u00a0 15%<\/p>\n[ D ]\u00a0\u00a0\u00a0 20%<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>63\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Ordinary Portland cement requires a specific surface of\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 1250 cm2\/gm<\/p>\n[ B ]\u00a0\u00a0\u00a0 2250 cm 2\/gm<\/p>\n[ C ]\u00a0\u00a0\u00a0 3250 cm 2\/gm<\/p>\n[ D ]\u00a0\u00a0\u00a0 3500 cm 2\/gm<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>64\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The maximum percentage of chemical ingredient of cement is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Iron oxide<\/p>\n[ B ]\u00a0\u00a0\u00a0 Silica<\/p>\n[ C ]\u00a0\u00a0\u00a0 Lime<\/p>\n[ D ]\u00a0\u00a0\u00a0 Magnesium oxide<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>65\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The minimum percentage of chemical ingredient of cement is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Iron oxide<\/p>\n[ B ]\u00a0\u00a0\u00a0 Silica<\/p>\n[ C ]\u00a0\u00a0\u00a0 Lime<\/p>\n[ D ]\u00a0\u00a0\u00a0 Magnesium oxide<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>66\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Efflorescence in cement is caused due to an excess of\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Alkalies<\/p>\n[ B ]\u00a0\u00a0\u00a0 Silica<\/p>\n[ C ]\u00a0\u00a0\u00a0 Iron oxide<\/p>\n[ D ]\u00a0\u00a0\u00a0 Alumina<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>67\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Dicalcium silicate (C2S)\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 rates rapidly<\/p>\n[ B ]\u00a0\u00a0\u00a0 Hardens rapidly<\/p>\n[ C ]\u00a0\u00a0\u00a0 Generates less heat of hydration<\/p>\n[ D ]\u00a0\u00a0\u00a0 Has less resistance to sulphate attack<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>68\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Tricalcium aluminate (C3A)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Hydrating less rapidly<\/p>\n[ B ]\u00a0\u00a0\u00a0 Is a redundant compound<\/p>\n[ C ]\u00a0\u00a0\u00a0 To be attacked by alkalies and salts<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of these<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>69\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For road pavements, the cement generally used, is\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Ordinary Portland cement<\/p>\n[ B ]\u00a0\u00a0\u00a0 Rapid hardening cement<\/p>\n[ C ]\u00a0\u00a0\u00a0 Low heat cement<\/p>\n[ D ]\u00a0\u00a0\u00a0 Blast furnace slag cement<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>70\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For mass concrete work, the type of cement preferable is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Ordinary Portland cement<\/p>\n[ B ]\u00a0\u00a0\u00a0 Rapid hardening cement<\/p>\n[ C ]\u00a0\u00a0\u00a0 Low heat cement<\/p>\n[ D ]\u00a0\u00a0\u00a0 Blast furnace slag cement<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>71\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Le-chatelier apparatus is used for\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Fineness test<\/p>\n[ B ]\u00a0\u00a0\u00a0 Consistency test<\/p>\n[ C ]\u00a0\u00a0\u00a0 Soundness test<\/p>\n[ D ]\u00a0\u00a0\u00a0 Compressive strength test<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>72\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The diameter of the Vicat plunger is 10 mm and its length varies form\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 40 mm<\/p>\n[ B ]\u00a0\u00a0\u00a0 50 mm<\/p>\n[ C ]\u00a0\u00a0\u00a0 55 mm<\/p>\n[ D ]\u00a0\u00a0\u00a0 60 mm<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>73\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Inert material of a cement concrete mix, is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Water<\/p>\n[ B ]\u00a0\u00a0\u00a0 Aggregate<\/p>\n[ C ]\u00a0\u00a0\u00a0 Cement<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of these<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>74\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 An aggregate is said to be flaky, if its least dimension is less than\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 2\/3 mean dimension<\/p>\n[ B ]\u00a0\u00a0\u00a0 3\/4 mean dimension<\/p>\n[ C ]\u00a0\u00a0\u00a0 3\/5 mean dimension<\/p>\n[ D ]\u00a0\u00a0\u00a0 5\/8 mean dimension<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>75\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Workability of concrete for a given water content is good, if the aggregates are\u00a0\u00a0 \u00a0\u00a0\u00a0<\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Rounded<\/p>\n[ B ]\u00a0\u00a0\u00a0 Irregular<\/p>\n[ C ]\u00a0\u00a0\u00a0 Angular<\/p>\n[ D ]\u00a0\u00a0\u00a0 Flaky<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>76\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Setting time of cement increases by adding\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p>(i)gypsum<\/p>\n<p>(ii)sodium oxide<\/p>\n<p>(iii)calcium chloride<\/p>\n[ A ]\u00a0\u00a0\u00a0 i<\/p>\n[ B ]\u00a0\u00a0\u00a0 i and ii<\/p>\n[ C ]\u00a0\u00a0\u00a0 i and iii<\/p>\n[ D ]\u00a0\u00a0\u00a0 i, ii and iii<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>77\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The cement becomes useless if its absorbed moisture content exceeds\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 1%<\/p>\n[ B ]\u00a0\u00a0\u00a0 2%<\/p>\n[ C ]\u00a0\u00a0\u00a0 3%<\/p>\n[ D ]\u00a0\u00a0\u00a0 5%<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>78\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The size of fine aggregates does not exceed\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 2.75 mm<\/p>\n[ B ]\u00a0\u00a0\u00a0 3.75 mm<\/p>\n[ C ]\u00a0\u00a0\u00a0 4.75 mm<\/p>\n[ D ]\u00a0\u00a0\u00a0 5.75 mm<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>79\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Water used for mixing concrete should be\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Slightly acidic<\/p>\n[ B ]\u00a0\u00a0\u00a0 Free from bacteria<\/p>\n[ C ]\u00a0\u00a0\u00a0 Distilled<\/p>\n[ D ]\u00a0\u00a0\u00a0 Potable<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>80\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The workability of concrete is mostly influenced by its\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Water cement ratio<\/p>\n[ B ]\u00a0\u00a0\u00a0 Aggregate cement ratio<\/p>\n[ C ]\u00a0\u00a0\u00a0 Cement content<\/p>\n[ D ]\u00a0\u00a0\u00a0 Water content<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>81\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Chief constituent of ordinary Portland cement is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Lime<\/p>\n[ B ]\u00a0\u00a0\u00a0 Alumina<\/p>\n[ C ]\u00a0\u00a0\u00a0 Magnesia<\/p>\n[ D ]\u00a0\u00a0\u00a0 Iron oxide<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>82\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The heat of hydration for low heat cement at the age of 7 days shall not exceed\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 80 cal \/ gm<\/p>\n[ B ]\u00a0\u00a0\u00a0 75 cal \/ gm<\/p>\n[ C ]\u00a0\u00a0\u00a0 70 cal \/ gm<\/p>\n[ D ]\u00a0\u00a0\u00a0 65 cal \/ gm<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>83\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Cement is obtained by burning a mixture of the following materials\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Siliceous materials<\/p>\n[ B ]\u00a0\u00a0\u00a0 Argillaceous materials<\/p>\n[ C ]\u00a0\u00a0\u00a0 Calcareous materials<\/p>\n[ D ]\u00a0\u00a0\u00a0 All the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>84\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For determining the compressive strength test on cement is, the percentage amount of <\/strong><\/p>\n<p><strong>water to be added as (Pa = Percentage of water for required consistency)\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.25 Pa + 2.5<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.25 Pa + 3.5<\/p>\n[ C ]\u00a0\u00a0\u00a0 0.35 Pa + 2.5<\/p>\n[ D ]\u00a0\u00a0\u00a0 0.35 Pa + 3.5<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>85\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Minimum compressive strength of cement required at the age of 3 days for ordinary <\/strong><\/p>\n<p><strong>Portland cement of grade 33 is\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 1.15 N\/mm2<\/p>\n[ B ]\u00a0\u00a0\u00a0 11.5 N\/mm2<\/p>\n[ C ]\u00a0\u00a0\u00a0 2.10 N\/mm2<\/p>\n[ D ]\u00a0\u00a0\u00a0 21 N\/mm2<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>86\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Bulking of sand takes place due to\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Surface tension<\/p>\n[ B ]\u00a0\u00a0\u00a0 Viscosity<\/p>\n[ C ]\u00a0\u00a0\u00a0 Capillarity<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>87\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Creep coefficient is the ratio of\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Ultimate Creep strain to elastic strain<\/p>\n[ B ]\u00a0\u00a0\u00a0 Elastic strain to ultimate Creep strain<\/p>\n[ C ]\u00a0\u00a0\u00a0 Elastic strain to plastic strain<\/p>\n[ D ]\u00a0\u00a0\u00a0 Plastic strain to elastic strain<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>88\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Generally the strength of concrete is represented by the crushing stress of concrete cube of <\/strong><\/p>\n<p><strong>size\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 50 mm<\/p>\n[ B ]\u00a0\u00a0\u00a0 100 mm<\/p>\n[ C ]\u00a0\u00a0\u00a0 150 mm<\/p>\n[ D ]\u00a0\u00a0\u00a0 250 mm<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>89\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As per IS:1139, the characteristic yield strength for hot rolled High yield strength deformed <\/strong><\/p>\n<p><strong>bars is\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 250 N\/mm2<\/p>\n[ B ]\u00a0\u00a0\u00a0 415 N\/mm2<\/p>\n[ C ]\u00a0\u00a0\u00a0 500 N\/mm2<\/p>\n[ D ]\u00a0\u00a0\u00a0 550 N\/mm2<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>90\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As per IS:1139, the characteristic yield strength for cold twisted deformed bars is\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 250 N\/mm2<\/p>\n[ B ]\u00a0\u00a0\u00a0 415 N\/mm2<\/p>\n[ C ]\u00a0\u00a0\u00a0 500 N\/mm2<\/p>\n[ D ]\u00a0\u00a0\u00a0 550 N\/mm2<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>91\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For reinforced concrete work, aggregates having a nominal size of &#8212;&#8212;&#8211; are generally used<\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 20 mm<\/p>\n[ B ]\u00a0\u00a0\u00a0 40 mm<\/p>\n[ C ]\u00a0\u00a0\u00a0 50 mm<\/p>\n[ D ]\u00a0\u00a0\u00a0 60 mm<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : A\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>92\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The proportion of coarse aggregates to fire aggregates in structural concrete is usually\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.50 &#8211; 1.25<\/p>\n[ B ]\u00a0\u00a0\u00a0 1.25 &#8211; 4.50<\/p>\n[ C ]\u00a0\u00a0\u00a0 1.50 &#8211; 2.50<\/p>\n[ D ]\u00a0\u00a0\u00a0 0.25 &#8211; 0.75<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>93\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Fly ash when added to concrete\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Acts as aggregates<\/p>\n[ B ]\u00a0\u00a0\u00a0 Acts as pozzolona<\/p>\n[ C ]\u00a0\u00a0\u00a0 Improves appearance<\/p>\n[ D ]\u00a0\u00a0\u00a0 Reduces setting time<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>94\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As per IS:456, the strength of concrete sample is less than\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 The characteristic strength minus 1.35times the standard deviation<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.80 times the characteristic strength<\/p>\n[ C ]\u00a0\u00a0\u00a0 Greater of (a) and (b)<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>95\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Characteristic strength of steel has been defined as\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 0.1 % proof stress<\/p>\n[ B ]\u00a0\u00a0\u00a0 0.2 % proof stress<\/p>\n[ C ]\u00a0\u00a0\u00a0 0.4 % proof stress<\/p>\n[ D ]\u00a0\u00a0\u00a0 Equal to proof stress<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>96\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 For Ordinary Portland cement concrete exposed to dry and hot weather conditions, good <\/strong><\/p>\n<p><strong>moist curing period is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 7 days<\/p>\n[ B ]\u00a0\u00a0\u00a0 10 days<\/p>\n[ C ]\u00a0\u00a0\u00a0 14 days<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>97\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As per IS: 456-2000, recommended value for standard deviation for concrete mix from M30 <\/strong><\/p>\n<p><strong>to M50 is\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 1 N\/mm2<\/p>\n[ B ]\u00a0\u00a0\u00a0 2 N\/mm2<\/p>\n[ C ]\u00a0\u00a0\u00a0 4 N\/mm2<\/p>\n[ D ]\u00a0\u00a0\u00a0 5 N\/mm2<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>98\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 As per 1S: 456-2000, minimum grade of concrete in seat water constructions is\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 M20<\/p>\n[ B ]\u00a0\u00a0\u00a0 M25<\/p>\n[ C ]\u00a0\u00a0\u00a0 M30<\/p>\n[ D ]\u00a0\u00a0\u00a0 M50<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : C\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>99\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The section of a reinforced beam where most distant concrete fiber in compression and <\/strong><\/p>\n<p><strong>tension in steel attains permissible stresses simultaneously is called\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p>(i)Balanced section<\/p>\n<p>(ii)Economic section<\/p>\n<p>(iii)Critical section<\/p>\n[ A ]\u00a0\u00a0\u00a0 i<\/p>\n[ B ]\u00a0\u00a0\u00a0 i and ii<\/p>\n[ C ]\u00a0\u00a0\u00a0 i and iii<\/p>\n[ D ]\u00a0\u00a0\u00a0 i, ii and iii<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : D\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p><strong>100\u00a0\u00a0\u00a0\u00a0 As the percentage of steel increases\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n[ A ]\u00a0\u00a0\u00a0 Depth of neutral axis decreases<\/p>\n[ B ]\u00a0\u00a0\u00a0 Depth of neutral axis increases<\/p>\n[ C ]\u00a0\u00a0\u00a0 Lever arm increases<\/p>\n[ D ]\u00a0\u00a0\u00a0 None of the above are correct<\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : B\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Civil Engineering Competitive Questions &nbsp; Select the incorrect statement\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 [ A ]\u00a0\u00a0\u00a0 R.C.C has better fire resistance than steel [ B ]\u00a0\u00a0\u00a0 R.C.C. structure is economical than steel structure [ C ]\u00a0\u00a0\u00a0 Strength of concrete decreases as age increases [ D ]\u00a0\u00a0\u00a0 R.C.C can be used for under water and marine structures \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Answer : &hellip;<\/p>\n","protected":false},"author":2264,"featured_media":1600,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"two_page_speed":[],"footnotes":""},"categories":[43,39],"tags":[85],"class_list":["post-1599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-civil-engineer","category-entrance-exams","tag-competitive-questions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Civil Engineering Competitive Questions Online Civil<\/title>\n<meta name=\"description\" content=\"Civil Engineering Competitive Questions Select the incorrect statement [ A ] R.C.C has better fire resistance than steel [ B ] R.C.C. structure\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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