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4th August 2014, 07:56 AM
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Central Public Works Department Civil Engineering model question papers
Will you please share with me the Central Public Works Department Civil Engineering model question papers as it is very urgent for me?
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#2
4th August 2014, 09:35 AM
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Re: Central Public Works Department Civil Engineering model question papers
As you want to get the Central Public Works Department Civil Engineering model question papers so here it is for you: Some content of the file has been given here: 1. Timber can be made reasonably fire- resistant by a. soaking it in Ammonium Sulphate b. coating with Tar paint c. pumping creosote oil into timber under high pressure d. seasoning process 2. Which one of the following statements is the correct description of the structure of fibre board ? a. Thin slices of superior quality of wood are glued and pressed on the surface of inferior wood b. Streamed mass of wood dusts, wood wool and other vegetable fibres are pressed hard to a thickness varying from 3 mm to 12 mm c. Thin and narrow wood shavings are soaked in a refractory binder material and pressed hard d. Thin and narrow wood shaving are soaked in a refractory binder material and pressed hard 3. Match List I(Constituents of bricks) with List II(corresponding influence) and select the correct answer : List I A. Alumina B. Silica C. Magnesia D. Limestone List II 1. Colour of brick 2. Plasticity recovery for moulding 3. Reacts with silica during burning and causes particles to unite together and development of strength 4. Preserve the for on brick at high temperature and prevents shrinkage A B C D a. 2 1 4 3 b. 3 4 1 2 c. 2 4 1 3 d. 3 1 4 2 4. In some brick masonry walls, patches of whitish crystals were found on the exposed surfaces, also chipping and spalling of bricks took place from the same walls. Which among the following are the causes of these defects ? 1. Settlement of foundation 2. Over-loading of the walls 3. Sulphate attach 4. Efflorescence a. 1 and 2 b. 2 and 3 c. 2 and 4 d. 3 and 4 5. Match List I with list II and select the correct answer : List I(Property) A. Specific heat of an aggregate B. Thermal conductivity of an aggregate C. Thermal expansion D. Durability of concrete List II(Characteristic) 1. Breaks the bond between the aggregate and the paste 2. Is a measure of its heat capacity 3. Is affected by differences n thermal expansion of two different materials 4. Is a measure of its ability to conduct heat A B C D a. 1 3 2 4 b. 2 4 1 3 c. 1 4 2 3 d. 2 3 1 4 6. Consider the following methods of preservation of timber : 1. Pressure application 2. Brush application 3. Dipping 4. Open tank application The correct sequence of these methods in the increasing order of their effectiveness is : a. 1, 3 4, 2 b. 3, 4, 2, 1 c. 2, 3, 4, 1 d. 4, 2, 1, 3 7. Match List I with List II and select the correct answer : List I (Name of defect) A. Cupping B. Bowing C. Chucks D. Knots List II(Definition) 1. Caused by wood limbs encased by the wood of the free trunk 2. Caused by grain irregularities in the board and can be eliminated by proper stacking 3. Small cracks appearing at the ends of boards caused by too rapid drying 4. Unequal shrinking in the radial and tangential direction A B C D a. 1 2 3 4 b. 4 3 2 1 c. 1 3 2 4 d. 4 2 3 1 8. Match List I with list II and select the correct answer : List I (Type of cement) A. Ordinary Portland cement B. Rapid hardening cement C. Low heat cement D. Sulphate resistant cement List II(Characteristics) 1. The percentage of C3S is maximum and is of the order of 50% 2. The percentages of C2S and C3S are the same and of the order of 40% 3. Reacts with silica during burning and causes particles to unite together and development of strength 4. Preserves the for of brick at high temperature and prevents shrinkage A B C D a. 2 4 1 3 b. 3 1 4 2 c. 2 1 4 3 d. 3 4 1 2 9. Match List I with List II and select the correct answer : List I(Type of cement) A. High strength Portland cement B. Super sulphated cement C. High alumina cement D. Rapid hardening Protland cement List II(Property/Characteristic) 1. Should not be used with any admixture 2. Is extremely resistant to chemical attach 3. Gives a higher rate of heat development during hydration of cement 4. has a higher content of tricalcium silicate A B C D a. 3 2 1 4 b. 4 1 2 3 c. 3 1 2 4 d. 4 2 1 3 10. Consider the following stages in the manufacturing of bricks : 1. Weathering 2. Moulding 3. Tempering The correct sequence of these stages in the manufacturing of the bricks, is a. 1, 2, 3 b. 2, 3, 1 c. 1, 3, 2 d. 3, 2, 1 11. Four main oxides present in ordinary Portland cement are : CaO, Al2O3, SiO2 and Fe2O3. Identify the correct ascending order of their proportions in a typical composition of OPC a. Al2O3, Fe2O3, CaO, SiO2 b. Al2O3, CaO, Fe2O3, SiO2 c. Fe2O3, Al2O3, SiO2 , CaO d. Fe2O3, SiO2 , Al2O3, CaO 12. Consider the following statements : Pozzolana used as an admixture in concrete has the following advantages : 1. It improves workability with lesser amount of water 2. It increases heat of hydration and so sets the concrete quickly 3. It increases resistance to attach by salts and sulphates 4. It leaches calcium hydroxide Select the correct answer using the code given below : a. 1, 2, 3 and 4 b. 1, 2, and 4 c. 1 and 3 d. 2, 3 and 4 13. The length of time for which a concrete mixture will remain plastic is usually more depended on a. the setting time of cement than on the amount of mixing water and atmospheric temperature b. the atmospheric temperature than on the amount of mixing water and the setting time of cement c. the setting time of cement and the amount of mixing water than on atmospheric temperature d. the amount of mixing water used and atmospheric temperature than on the setting time of cement 14. Which one among the following is the correct free body diagram for a portal frame shown in Figure given above ? a. b. c. d. 15. Consider the following statements : Mohr’s circle is used to determine the stress on an oblique section of a body subjected to 1. direct tensile stress on one plane accompanied by a shear stress 2. direct tensile stresses in two mutually perpendicular directions accompanied by a simple shear stress 3. direct tensile stress in two mutually perpendicular directions 4. a simple shear stress Select the correct answer using the codes given below : a. 1 and 4 b. 2 and 3 c. 1, 2, 3 and 4 d. 1, 2 and 3 16. A bar of square cross- section, having an area of cross-section ‘A’ is subjected to a compressive force ‘P’ as shown in the figure The intensity of the tangential stress on the oblique plane is given by a. P sin 2 b. P cos 2 c. P/2 sin2 d. P/2 cos 2 17. The ratio of the torsional moment s of resistance of a solid circular shaft of diameter D, and a hollow circular shaft having external diameter d and internal diameter d is given by 4 2. Centroid 3. The plane sections remain plain 4. Extreme fibre 5. The cross-section is circular A B C D a. 5 4 1 2 b. 3 1 2 4 D a. 4 c. 4 5 1 2 4 b. D D d 4 4 d 22. 4 d. 3 4 1 2 A rectangular beam of width 200 mm and D depth 300 mm is subjected to a shear force 3 3 D c. d. d 3 D 3 D 3 3 of 200 kN. The maximum shear stress produced in the beam is a. 10.0 MPa b. 7.5 MPa D d 18. Clapeyron’s theorem is applied to a. Simply supported beam b. Propped cantilever beam c. Fixed & continuous beam d. Continuous beam only 19. The valiration of the hoop stress across the thickness of a thick cylinder is a. linear b. uniform c. parabolic d. hyperbolic 20. The bulk modulus of elasticity of a material is twice its modulus of rigidity. The Poisson’s ratio of the material is a. 1/7 b. 2/7 c. 3/7 d. 4/7 21. Match List I with List II and select the correct answer : List I A. Assumption in the theory of simple bending B. The point at which the bending stress is maximum for any cross-section C. The point at which the bending stress is zero for an y cross-section D. The point in the cross-section through which the neutral axis passes List II 1. Neutral axis c. 5.0 MPa d. 3.00 MPa 23. A symmetrical channel section is made of a material which is equally strong in tension and compression. It is used as a simply supported beam with its web horizontal to carry vertical loads. It will a. be strongest if the web is used as top face b. be strongest if the web is used as bottom face c. be equally strong in (a) and (b) above d. not be possible to state which of the above statements is correct 24. For which of the following conditions, the virtual work should be zero according to the Principle of virtual work ? 1. A body moving with constant acceleration 2. A body rotating with constant speed 3. A body in equilibrium 4. A body moving with constant momentum Select the correct answer using the codes given below : a. 1 only b. 1 and 2 c. 3 only d. 4 only 25. c. Zero p1 and p2 are two equal tensile principal stresses. On the plane AB inclined at 45o to the plane of p1 a. the shear stress is a maximum b. the normal stress is zero c. the shear stress is zero d. the normal stress is maximum 26. In the symmetrical channel section shown in the figure, which point is likely to be the shear center ? a. A b. B c. C d. D 27. The force in member AB is a. 5kN compression b. 2 kN compression c. Zero d. 7 kN compression 28. The force in the member BD of the truss shown in the figure given above is a. 4 kN tensile b. 4 kN compressive d. 12 kN compressive 29. A free body diagram of a body shows a. A body isolated from all external effects without considering its own weight b. A body isolated form its surroundings and all external forces acting on it c. A body isolated from its surroundings and all external actions on it d. A body isolated fro its surroundings and all internal forces acting on it 30. Neglecting self weight, which of the following beams will have points of contraflexure? a. A simply supported beam with uniformly distributed load over part of the structure b. An overhanging beam with loading only over supported span and not on overhangs c. Fixed beam subjected to concentrated load d. Cantilever beam subjected to uniformly varying load with zero load at free end 31. The absolute maximum bending moment in the beam is a. 2Pa b. 5Pa c. 4Pa d. 7Pa 32. Which one of the following pairs is NOT correctly matched ? Boundary conditions Euler’s buckling of column load a. Both ends hinged : 2El / l2 b. Both ends fixed : 42El / l2 c. One end fixed and : El / 4l2 other end free d. One end fixed and : 2 2El/l2 the other hinged 33. For a two-hinged parabolic arch, V= is sum of the vertical forces on the left hand side of the section. H is the horizontal thrust. If is the angle of tangent at the point on arch with the horizontal, the shearing force at section form left hand side is given by a. Vx sin - H cos b. Vx cos - H sin c. Vx sin + H cos d. Vx cos + H sin a. Both b and c are in tension b. Both b and c are in compression c. b is in tension, c is in compression d. b is in compression, c is in tension 36. Match List I with List II and select the correct answer : List I A. Torque-twist relationship for a circular shaft B. Strain energy of elastic torsion C. Circumferential shear stress D. Maximum shearing stress due to combined torsion and direct stress List II 2 2 1. 1/2 4 2. Gr / l 34. In the truss shown in the figure given above, which one of the following members has no force induced in it ? a. CD b. CE c. CF d. DF 35. A joint of a roof truss has been isolated and shown in Figure (i). the force polygon for the joint is the shown in Figure (ii). Member ‘a’ is in compression, member ‘d’ is in tension. Which one of the following is correct ? 3. (GJ/2l)2 4. GJ l A B C D a. 2 3 4 1 b. 4 1 2 3 c. 2 1 4 3 d. 4 3 2 1 37. A beam (El = constant) of span L is subjected to clockwise moments M at both the ends A and B. The rotation of end A works out to be a. ML / 2 El b. ML / 3 El c. ML / 4 El d. ML / 6 El 38. Consider the following statements : The principle of superposition is not applicable when 1. the material does not obey Hooke’s law 2. the effect of temperature changes are taken into consideration 3. the structure is being analysed for the effect of support settlement Which of the above statements is/are correct ? a. 1 only b. 1 and 2 c. 2 and 3 d. 1, 2 and 3 39. Which of the following apply to ‘fully rigid design’ of steel structures ? 1. End connections are capable of transmitting moments 2. angle between member s at the joint does not change 3. The structure is assumed to be pin- pointed 4. A reduction in the maximum bending moment is permitted to provide a degree of direction fixity Select the correct answer using the codes given below : a. 1, 2 and 3 b. 1 and 2 c. 1, 3 and 4 d. 2, 3 and 4 40. For the propped cantilever shown in the figure, influence line for reaction at the propped end is given by y1 = f(x). The influence line ordinate (y2) for moment at A is given by the equation a. y2 = f(x) b. y2 = f(x) . x c. y2 = x - f(x) .x d. y2 = x - f(x). L 41. In a system two weightless rigid bars AB and BC of length ‘a’ each having hinge supports at the ends. A and C, respectively, are connected to each other at B by a frictionless hinge (internal hinge). The rotation at the hinge is restrained by a rotational spring of stiffness k and system assumes a straight line configuration ABC. The rotation at the supports due to vertical load P acting at joint B is a. Pa / 2k b. Pa / 4k c. Pa / k d. 2 Pa / k 42. A solid circular shaft, ABC, has a total length of ‘3 a’. A gear wheel positioned at B, at distance ‘a ‘from the left hand end A, exerts a torque T. If the ends A and C are instantaneously locked in position by brakes just before the torque is applied, the torsional moments induced in both segments T1 (AB) and T2 (BC) are in the ratio a. 3 : 1 b. 2 : 3 c. 1 : 2 d. 2 : 1 43. The degree of indeterminacy of the beam given above is a. zero b. one c. two d. three 44. For the frame shown above, the distribution factors for members BC and BA at joint B are a. 0.4, 0.6 b. 0.5, 0.5 c. 0.6, 0.4 d. 0.7, 0.3 45. Creep of a material is a property indicated by a. a time-dependent strain of the material b. elongation of the material due to changes in the material properties c. shortening caused by shrinkage of the member d. the decrease in the volume of the material affected by the weather conditions 46. Principle of minimum strain energy is 1. a particular case of Castigliano’s first theorem 2. a particular case of Castigliano’s second theorem 3. applicable only when the redundant supports do not yield 4. applicable even when the redundant supports yield Select the correct answer using the codes given below : a. 1 and 3 b. 1 and 4 c. 2 and 3 d. 2 and 4 47. Two shafts having same length and material are joined in series and subjected to a torque of 10 kNm. If the ratio of their diameters is 2 : 1, then the ratio of their angles of twist is a. 16 : 1 b. 2 : 1 c. 1 : 2 d. 1 : 16 For more detailed information I am uploading a ZIP file which is free to download: |