1. The phenomena of development of internal tensile stresses in a concrete member by means of tensioning devices are called as thermoelectric prestressing prestressing of concrete pre-tensioning post-tensioning 2. The prestressing of concrete member is carried out to reduce bending stresses shear force tensile stresses compressive stresses 3. When the concrete attains sufficient strength, which elements are released? tendons beams jacks casting bed 4. In flat slab design, the column strip shall be designed to resist 40 percent of the total positive moment in the panel 65 percent of the total negative moment in the panel 60 percent of the total positive moment in the panel 35 percent of the total negative moment in the panel 5. Modulus of elasticity of concrete is generally expressed in terms of shear strength tensile strength compressive strength torsional strength 6. After the tensioning operation, the space between the tendons and the ducts are cemented grouted drilled layered 7. Creep of concrete in a structural member is due to elasto-plastic strain elastic strain plastic strain inelastic strain 8. In flat slab design, the middle strip shall be designed to resist 65 percent of the total negative moment in the panel 60 percent of the total positive moment in the panel 40 percent of the total positive moment in the panel 35 percent of the total negative moment in the panel 9. The concept is used in many branches of civil engineering and building construction? reinforced concrete prestressed concrete lump sum concrete steel concrete 10. The tendon splice preferred in the case of long span continuous prestressed members is torpedo splice clamp splice wrapped splice none of the options 11. In flat slab design, The drops when provided shall be rectangular in plan, and have a length in each direction not less than one third of the panel length in that direction not less than three fourth of the panel length in that direction not less than one fourth of the panel length in that direction not less than one half of the panel length in that direction 12. Shrinkage of concrete in a structural member is due to live load dead load on the member both dead load on the member and live load loss of moisture and drying of concrete 13. A slab without beam is called as flat slab bubble deck slab both bubble deck slab and flat slab grid slab 14. In case of continuous prestressed concrete members to gain continuity, splicing is done by concrete steel tendons reinforcement 15. The phenomena of drying process of contraction concrete refer to shrinkage of concrete drying process weight loss moisture loss 16. Development of early cracks in reinforced concrete is due to stresses of steel strains of steel bending of steel ultimate load 17. A flat slab can be design by equivalent frame method direct design method eulers method both direct design method and equivalent frame method 18. Hoyers system of pre tensioning is generally adopted for small scale members middle span members end members large scale members 19. The attempt to introduce permanently acting forces in concrete to resist the elastic forces is loading prestressing pre-straining bending 20. The load at which the prestressed member develops its first crack is called as creep load bending load transfer load cracking load 21. Which of the following basic concept is involved in the analysis of prestressed concrete members? combined and bending stresses principle stresses shear stresses overhead stresses 22. According to IS 456: 2000, a flat slab can be design by direct design method if there are continuous span in each direction no limitation on spans maximum 3 minimum 4 minimum 3 23. The ratio between the creep strain and elastic strain of concrete is defined as creep coefficient creep ratio creep factor creep elasticity 24. In reinforced concrete members, the prestress commonly introduced is tensioning rings tensioning wood reinforcement tensioning plates tensioning steel reinforcement 25. Prevention of bond between the steel and concrete is known as de bonding proof stress bond prestressed concrete axial prestressing 26. In flat slab design, in an interior span total design moment Mo shall be distributed in proportion 25 % negative design moment & 75 % positive design moment 65 % negative design moment & 35 % positive design moment 35 % negative design moment & 65 % positive design moment 75 % negative design moment & 255 % positive design moment 27. In circular prestressing members, the tendons are supplied in form of wires cables rings bars 28. The bond of prestressing wires in Hoyers system can be formed by diode crimping helical crimping circular crimping tangential crimping 29. The earliest examples of wooden barrel construction by force-fitting of metal bands and shrink-fitting of metal tiers of wooden wheels indicate the art of stress straining tensioning prestressing 30. Which one of the following is the basic assumption involved in designing of prestressed concrete members? plane member remains plane before and after bending hookes law is not valid for prestressing development of principle stresses variation of stresses in tensile reinforcement 31. The transfer of prestress of concrete is achieved by jacks rings plates steel bars 32. In reinforced concrete members the prestress is commonly introduced by rings tensioning the steel reinforcement shortening of concrete tendons 33. The compression in concrete and tension in steel are developed by? expansion cements joint cements hardened cements water cement ratio 34. High-tensile steel is basically high carbon steel low nickel steel low carbon steel high manganese steel 35. The panels shall be rectangular, and the ratio of the longer span to the shorter span within a panel shall not be less than 3.0 not be greater than 2.0 not be less than 2.0 not be greater than 3.0 36. The significant observations which resulted from the pioneering research on prestressed concrete were high strength bars and losses of strain high strength rings and losses of shrinkage high strength steel and losses of prestress high strength tendon and losses of creep 37. Which is one of the systems used for pretensioning? hoyers long line method freyssinet system gifford-udall system magnel-balton system 38. In pre-tensioning system, after curing and hardening of concrete the reinforcement is set locked fixed jacked free 39. The creep coefficient depends upon the span of the structural member notional size of the member depth of the member none of the options 40. Tendon splices are required in hoyers long line method of pretensioning short span prestressed members long span continuous members all of the options 41. The method of prestressing the concrete after it attains its strength is known as chemical prestressing post tensioning pre tensioning axial prestressing 42. Looping of high-tensile tendons around the concrete is used in bbrv system baur-leonhardt system magnel-blaton system none of the options 43. In prestressed members requiring very large forces, the tendons preferred are bars wires strands none of the options 44. In direct design method of flat slab, total design moment Mo is 945 kNm then negative design moment in column strip is 198.45 knm 368.55 knm 132.30 knm 245.70 knm 45. Cantilever RC retaining wall proves to be economical for height 8m to 10m 11 m to 15m more than 15m 5m to 7m 46. In pretensioning system the member is prestressed by external anchors the member is cast fist followed by tensioning of high-tensile wires the high-tensile wires are tensioned before placing concrete in forms none of the options 47. The vertical stem of cantilever retaining wall is subjected to varying earth pressure developing tensile stresses on earth side varying earth pressure developing tensile stresses on opposite side of earth side varying large upward soil pressure downward force due to self-weight of slab 48. In flat slab design, the moment at the support of column strip is 0 negative positive may be positive or negative 49. The pressure exerted by the retained material on the retaining wall is called both active earth pressure and earth pressure active earth pressure passive earth pressure earth pressure 50. In retaining wall to prevent the sliding of wall sometimes shear key is provided bending key is provided ankle key is provided bearings are provided Submit Answers Retake Test More Civil Engineering Study Material › Civil Engineering Mock Tests with AnswersAdvanced Construction and Equipments Mock TestAdvanced Construction Technology Mock TestBasics of Civil Engineering Mock TestBuilding Construction Mock TestBuilding Materials Mock TestBuilding Services Mock TestBuilding Technology and Architectural Planning Mock TestConcrete Technology and Design Mock TestConcrete Technology Mock TestConstruction Management Mock TestConstruction Project Management Mock TestConstruction Quality Control and Monitoring Mock TestConstruction Technology Mock Test Design of Masonry Structures Mock TestDesign of Reinforced Cement Concrete Elements Mock TestDesign of Steel Structures Mock TestDock and Harbour Engineering Mock TestElements of Remote Sensing Mock TestEngineering Geology Mock TestEngineering Graphics Mock TestEngineering Mechanics Mock TestEstimating and Costing Mock TestEstimation, Costing and Valuation Engineering Mock TestFluid Mechanics Mock TestFoundation engineering Mock Test Geotechnical Engineering Mock TestHighway Engineering Mock TestHydraulics and Fluid Mechanics Mock TestHydraulics Machines Mock TestHydraulics Mock TestIrrigation Engineering Mock TestMaintenance and Rehabilitation of Structures Mock TestPrefabricated Structures Mock TestProfessional Ethics in Engineering Mock TestPublic Health Engineering Mock TestRailway Bridge and Tunnel Engineering Mock TestRailway Engineering Mock Test Railways, Airports, Docks and Harbour Engineering Mock TestRCC Structures Design Mock TestSocietal and Global Impact Mock TestSoil Mechanics and Foundations Mock TestStructural Analysis Mock TestStructural Design and Drawing Mock TestStructural Design Mock TestStructural Mechanics Mock TestSurveying Mock TestWaste Water Treatment Mock TestWater Supply Engineering Mock TestWater and Wastewater Engineerin Mock Test Civil Engineering Mock TestsCivil Engineering MCQ Questions with Answers
