Level 11111
1. A rectangular beam of length I supported at its two ends carries a central concentrated load W at its centre. The maximum deflection occurs at the ends at 1/3 from both ends at the mid span at 1/4 from both ends Click here for answer 2. If the depth is kept constant for beam of uniform strength then its width will vary proportional to M Sqrt(M) M^2 M^3 Click here for answer 3. When a beam deflects into a uniform strength then its width will vary proportional to I/2R I/8R I^2 /8R I^2 /2d Click here for answer
4. The longitudinal stress in a thin cylindrical shell is Pd/4t Pd/2t Pt/4d Pt/2d Click here for answer 5. The ratio of maximum shear stress and average shear stress for a rectangular section is 1.5 2 2.5 3 Click here for answer 6. A fixed beam of span L carries a central point load W. The maximum sagging bending moment in the beam is WL/2 WL/4 WL/8 WL/16 Click here for answer 7. Air entrainment in the concrete increases workability
strength the effects of temperature the unit weight Click here for answer 8. The relation between modulus of rupture Fcr and characteristic strength of concrete Fck is given by Fcr = 0.35 S Fck Fcr = 0.5 S Fck Fcr = 0.7 S Fck Fcr = 1.2 S Fck Click here for answer 9. The compressive strength of 100 mm cube as compared to 150 mm cube is always less more equal may be any of the above Click here for answer 10. For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine's theory is always less than 1 is always greater than 1
can be more than 1 can be less than 1 Click here for answer 11. For bars in tension a standard hook has an anchorage value equivalent to a strength length of 8 12 16 24 Click here for answer 12. Cube strength of controlled concrete to be used for pre-tensioned and post-tensioned work respectively should not be less than 350 Kg/cm^2 and 420 Kg/cm^2 420 Kg/cm^2 and 530 Kg/cm^2 420 Kg/cm^2 and 350 Kg/cm^2 530 Kg/cm^2 and 420 Kg/cm^2 Click here for answer 13. The creep strains are caused due to dead loads only caused due to live loads only caused due to both dead and live load
independent of loads Click here for answer 14. Ratio of compressive strength to tensile strength of concrete increases with age decreases with age remains constant none of the above Click here for answer 15. In limit state design of concrete for flexure, the area of stress block is taken as 0.36 Fck Xu 0.42 Fck Xu 0.446 Fck Xu 0.53 Fck Xu Click here for answer 16. The fitness modulus of the fine aggregate is in the range of 2.0 to 3.5 3.5 to 5.0 5.0 to 7.0 6.0 to 8.5 Click here for answer
17. According to IS:456-1978, the maximum reinforcement in a column is 2% 4% 6% 8% Click here for answer 18. The minimum cover in a slab should neither be less than the diameter of bar nor less than 10 mm 15 mm 20 mm 13 mm Click here for answer 19. If the permissible stress in steel in tension is 140 N/mm^2, Permissible stress in concrete in bending compression is 5N / mm^2. Then the depth of neutral axis for a singly reinforced rectangular balanced section will be 0.35 d 0.40 d 0.45 d dependent on grade of concrete also Click here for answer 20. The slab is designed as one way if the ratio of long span to short span is
less than 1 between 1 and 1.5 between 1.5 and 1.2 greater than 2 Click here for answer 21. In any beam when the moment of inertia about the neutral axis is doubled, its deflection is doubled tripled halved minimum Click here for answer 22. The limits of percentage of the longitudinal reinforcement in a column is given by 0.15% to 2% 0.8% to 4% 0.8% to 6% 0.8% to 8% Click here for answer 23. A rigid prop provided for a beam brings the bending for a beam
brings the deflection at the prop to zero brings the slopes at the section to zero brings the shear force at the section to zero Click here for answer 24. In a simply supported beam AB with a concentrated load W at a distance 'a' from support A and 'b' from support B, the deflection under the load is wa^2 b^2 / 3EIL wa^2 / 3EI wa^2 b^2 /3EI wa^2 b + 2/EIL Click here for answer 25. For the design of retaining walls the minimum factor of safety against over-turning is taken as 1.5 2.0 2.5 3.0 Click here for answer 26. A cantilever beam is loaded by a point load at the free end. It is likely to fail by B.M. under the load at mid span
at support none Click here for answer 27. The distance between centre lines of a broad gauge is 1.686m. The most economic length of sleeper for efficient distribution of B.M. is 1.866 m 2.866 m 3.866 m 0.866 m Click here for answer 28. In a simply supported beam of span L carrying an eccentric couple M acting at a distance A from the left support, the reaction included at the support is M/L L/M ML 1/ML Click here for answer 29. Area of shear force diagram between two sections is 70 KNm 140 KNm 280 KNm
can not be found Click here for answer 30. The section modulus of square section of side A is a^2 /6 a^3 /6 a^4 /12 a^3 /12 Click here for answer 31. The minimum percentage of mild steel reinforcement in walls of RCC water tanks of 450 mm thick is about 0.20 0.30 0.24 0.16 Click here for answer
Level 2222
1. A beam of span L m is simply supported at the ends. It is loaded by two equal clockwise moments at the supports. Point of contra flexure acts at
0.25 m from left support 0.25 m from right support At mid span none of these Click here for answer 2. The ratio of flexibility of loose beams (b x d) places one over the other to the flexibility of one integral beam (nb x d) is h^2 1/h^2 1 h^3 Click here for answer 3. The earth pressure at a depth d is P the earth pressure at depth d/2 is P 4P 0.5P 0.25P Click here for answer 4. A reinforced concrete column is considered as a short column, if its slenderness ratio L/bn is less than 20
18 15 12 Click here for answer 5. A common footing provided for two columns is called a mat foundation raft foundation combined footing common foundation Click here for answer 6. For reinforced concrete (M15) members immersed in sea water the cover shall be Same as in the usual case 25 mm more than the cover in the usual cases 40 mm more than the cover in the usual cases 50 mm more than the cover in the usual cases Click here for answer 7. The modulus of elasticity of steel is 150 KN/mm^2 200 KN/mm^2 250 KN/mm^2
275 KN/mm^2 Click here for answer 8. The number of rivets for connecting a strut to a gusset plate shall not be less than 2 3 4 5 Click here for answer 9. The inclination of a lacing bar with the axis of the compression member shall not exceed 60 70 45 30 Click here for answer 10. For unstiffened webs of girders, the thickness of web shall not be less than D1/50 D1/85 D1/100 D1/150
Click here for answer 11. Spacing of vertical stiffeners in a girder shall not be less than 0.50d 0.40d 0.33d 0.25d Click here for answer 12. The maximum bending moment for a purling may be taken as WL/10 WL/8 WL/12 WL/15 Click here for answer 13. If the foundations of all the columns of a structure are designed on the total live and dead load basis, then there will be no settlement of columns there will be no differential settlements the settlement of exterior columns will be more than interior columns the settlement of interior columns will be more than exterior columns Click here for answer 14. To minimize the effect of differential settlement, the area of footing should be designed for
dead load only dead load + live load dead load + fraction of live load live load + fraction of dead load Click here for answer 15. A reduction factor Cr, load carrying capacity of a long columns is given by Cr = 1.25 - Le/24b Cr = 1 - Le/48b Cr = 1.25 - Le/48b Cr = 1.5 - Le/48b Click here for answer 16. Normally pre-stressing wires are arranged in the upper part of the beam lower part of the beam centre anywhere Click here for answer 17. The shear stress intensity changes from the centre to the surface of the shaft with uniform rate
varying rate remains same all the above Click here for answer 18. The formula T/J = NO/L = fs/r when applied to torsion of closely coiled helical spring, the value of J will be calculated with mean diameter of the coil D the diameter of wire of spring mean of D and d (2D + d)3 Click here for answer 19. The shear stress intensity is minimum at axis of shaft surface of the shaft any inside layer of shaft all the above Click here for answer 20. A steel member which is subjected to primary tension is called Tie Tie or beam Strut
Sling Click here for answer 21. Sliding failure occurs in a solid gravity dam when Resultant of all forces cuts the base of the dam outside Resultant of all force cuts the base of the inner middle third point Ratio of overturning moments exceeds one Shear friction factor is less than 1.5 Click here for answer 22. Mean velocity of flow in a river can be directly measured by means of Boats Dams Surface floats Rod floats Click here for answer 23. The formula used to calculate maximum flood discharge for deccan catchments is Dicken's formula Ryve's formula Ali Nawab Jung Bahadur formula Ingli's formula Click here for answer
24. Direct run off is the sum of Surface run off and mass flow Base flow and ground water run off Deployed sub surface run off and deep percolation Surface run off and interflow Click here for answer 25. A fluid is a substance that always expands until it fills any container is parctically incompressible cannot remain at rest under the action of a shear force cannot be subjected to shear forces Click here for answer 26. In Sutro weir the discharge is proportional to H H^1/2 H^3/2 H^5/2 Click here for answer 27. Which of the following has highest coefficient of discharge Sharp edged orifice
Venturimeter Borda's mouth piece running free Cippoletti weir Click here for answer 28. ML^-1 T-2 is the dimension of Force Pressure Energy Power Click here for answer 29. Cavitation is caused by high velocity low barometric pressure low pressure high pressure Click here for answer 30. Number of rivets required in a joint is load/shear strength of a rivet load/bearing strength of a rivet load/tearing strength of a rivet
load/rivet value Click here for answer 31. The point of contraflexure occurs in cantilever beams only continuous beams only over hanging beams only all types of beams Click here for answer
Level-----3
1. According to Unwin's formula, if t is thickness of the plate in mm, the nominal diameter of the rivet is d = 1.91 t d = 1.91 t^2 d = 1.91 St d = 1.91 St^3 Click here for answer 2. The slenderness ratio of a column is zero when its length is zero is equal to its radius of gyration is supported on all sides throughout its length is between the points of zero moments Click here for answer 3. According to IS; 800-lacing bars resists transverse shear equal to 1.0% of the axial load 2.0% of the axial load 2.5% of the axial load 3.0% of the axial load Click here for answer 4. When the length of tension member is too long a wire is used
a rod is used a bar is used a single angle is used Click here for answer 5. A major beam on a building structure, is known as a girder a floor beam a main beam all the above Click here for answer 6. For simply supported beams, the maximum permitted deflection is 1/325 of the span 1/350 of the span 1/375 of the span 1/400 of the span Click here for answer 7. In case of cantilever beams the ratio of span to the depth should not exceed 4 8 12
16 Click here for answer 8. In a fillet weld placed on the sides of the base, the metal experiences shear tension compression all the above Click here for answer 9. Steel is efficiently used in under reinforced section over reinforced section under and over reinforced section none of the above Click here for answer 10. The maximum area of tension reinforcement in a beam is 4% of bD 4.5% of bD 5% of bD 5.5% of bD Click here for answer 11. The large moment of resistance of T-beam section is due to
width of rib amount of steel composite action between the flanges and the rib depth of rib Click here for answer 12. If in any given pane, one end of a column is unrestrained, its unsupported length l, shall not exceed 100 b^2 /D 120 b^2 /D 125 b^2 /D 140 b^2 /D Click here for answer 13. The diameter of lateral ties in a column shall not be less than 6 mm 5 mm 8 mm 10 mm Click here for answer 14. The bending moment at a section of a beam is given by wx^3/6 then the expression for the rate of loading is wx^4 /24
wx^2 /2 wx w Click here for answer 15. The torque produced in a circular shaft rotating at 100 r.p.m. to produce 1 h.p. is _____ Kgcm 716.2 816.2 916.2 616.2 Click here for answer 16. The weight of foundation may be assumed to be 15% of the column loads 20% of the column loads 25% of the column loads 10% of the column loads Click here for answer 17. In a continuous footing the area of longitudinal reinforcement required in the direction of wall is 0.3% 0.2%
0.5% 0.4% Click here for answer 18. The net upward pressure on footing p is given by W + W1/W.q. W.q./W + W1 W - W1/W.q. W.q./W - W1 Click here for answer 19. Partial safety factor m for steel in limit state design is 0.5 1.0 1.5 1.15 Click here for answer 20. The design strength of materials Fs is given by 1.1 f/Rm f/Rm f 0.9f
Click here for answer 21. The pre-stressed concrete induces artificially _____ stress in a structure before it is loaded compressive tensile shear bending Click here for answer 22. According to IS code the total amount of shrinkage for a post tensioned member is taken as 2 x 10^4 / log10 (T+2) 3 x 10^-4 / log10 (T+3) 3 x 10^-3 / log10 (T+3) 2 x 10^-3 / log10 (T+3) Click here for answer 23. The state at which tendon force is released permanently on the concrete is called Transfer Anchoring Pre-tensioning Post-tensioning Click here for answer
24. In a thin cylindrical shell if F1 is the hoop stress and F2 is the longitudinal stress induced, maximum shear stress at any point of the material is given by F1 + F2 / 2 F1 - F2 / 2 F1F2 / 2 2F1 / F2 Click here for answer 25. A beam is fixed at one end and is supported at the other end to the level of the fixed end by means of a rigid prop. At the propped end, for any applied load only flexural moment is zero the flexural moment as well as deflection is zero the slope as well as the deflection is zero the slope as well as the flexural moment is zero Click here for answer 26. The thickness of lacing bar used in steel ties should not be less than 6 mm 4.5 mm B/40 L/40 Click here for answer 27. Mohr's theorem I gives _____ between two tangents on the elastic line of beams
Slope Deflection S.F. B.M. Click here for answer 28. IS code of practice for steel is 456 800 546 none Click here for answer 29. Select cash/commercial crop from the following Maize Paddy Cotton Wheat Click here for answer 30. Canal lining Increases water logging area Decreases water logging area
Does not affect water logging area Maintains constant water logging area Click here for answer 31. The diameter of transverse reinforcement of columns should be equal to 1/4 of the diameter of the main steel rods but not less than 4 mm 5 mm 6 mm 7 mm Click here for answer
Level 4444444
1. The world famous constant radius arch dam Hoover is in Italy
Russia U.S.A U.K. Click here for answer 2. Presently percentage of area irrigated to that of total cultivated area is 80% 33% 27% 40% Click here for answer 3. Duty of well water is more than canal water because Conveyance losses in well irrigation are less Well water is clear than canal water Lifting of water increases cost of well water Well water is used economically Click here for answer 4. Weirs constructed on permeable foundation are likely to fail due to Piping Crushing Sliding
All the above Click here for answer 5. Inlet and outlet are provided as cross drainage measure when the discharge of the drain is very high high medium low Click here for answer 6. The unit of hydraulic mean radius is m^3 radians m^2 m Click here for answer 7. A water shed canal irrigates only on one side avoids the cross drainage works is generally aligned parallel to the contours of the area is most suitable in hilly areas Click here for answer
8. The meander pattern of a river is developed by average discharge dominant discharge maximum discharge critical discharge Click here for answer 9. A unit hydrograph has one unit of rainfall duration rainfall excess time base of direct runoff discharge Click here for answer 10. For a flood control reservoir, the effective storage is equal to useful storage - valley storage useful storage + surcharge storage useful storage - surcharge storage useful storage + surcharge storage - valley storage Click here for answer 11. When the reservoir is full, the maximum compressive force in a gravity dam is produced at the toe
at the heel within the middle third of base at centre of base Click here for answer 12. When the fluid properties do not change with time, it is a _____ flow steady uniform unsteady non-uniform Click here for answer 13. The coefficient of discharge for a convergent divergent mouth piece is 2/3 1/3 1/2 3/4 Click here for answer 14. A horizontal pipe of carrying liquid increases its diameter d1 to d2. The pressure increase is maximum when d1 to d2 is 1/2 1/3 1/Sqrt(2)
1/4 Click here for answer 15. Diameter of nozzle d for maximum power transmission is given as d = (D^5 / 8fl)^1/4 d = (D^5 / 8fl)^1/5 d = (D^4 / 8fl)^1/5 d = (8fl/5)^1/4 Click here for answer 16. In a triangular notch an error of 1% in measuring head will produce _____ error in discharge 1% 1.5% 2% 2.5% Click here for answer 17. Aeration holes are provided in a weit with end contraction in a suppresses weir in a cippoletti weir in all weirs Click here for answer
18. The head of water supplied to a nozzle is 12 m. The loss of head due to friction at at maximum power transmission is 3m 4m 1.2 m 6m Click here for answer 19. Weep holes are provided in canal lining to improve strength of lining give additional anchorage against sliding provide water into branch canals have drainage facility Click here for answer 20. The flow in a river during floods may be classified as laminar flow streamline flow irrotational flow turbulent flow Click here for answer 21. The first step in the operation of a centrifugal pump is pumping
straining priming none of these Click here for answer 22. Developement of _____ in river meandering causes violent changes in river delta critical velocity cut off turbulance Click here for answer 23. An impermeable foundation which neither contains water nor transmits any water is called Aqueduct Aquifer Aquiclude Confined aquifer Click here for answer 24. The maximum quantity of water that can be guaranteed during a critical dry period is known as _____ yield critical dry
safe all the above Click here for answer 25. Rabi crops pertains to throughtout the year summer season monsoon season winter season Click here for answer 26. The velocity measured at a depth of _____ gives the mean velocity using the current meter 0.6 m 0.5 m 0.6 depth 0.5 depth Click here for answer 27. When thickness of imprevious core in an earthen dam is less than _____ or less than the height of the dam, then the dam is known as diaphram type, otherwise it would be zoned earth dam 3m 5m 10 m
15 m Click here for answer 28. Generally useful life of a reservoir is considered terminated when its effective storages is reduced by _____ of the design capacity of the reservoir 100% 80% 50% 20% Click here for answer 29. When the nappe of a spillway confirms to the profile of lower nappe water, falling from a sharp rested weir, when it is called as straight drop spillway chute spillway siphon spillway ogee spillway Click here for answer 30. The last length of the river before it falls into the sea is known as mountainous stage trough-stage delta stage sub-mountainous stage
Click here for answer 31. For a number of columns constructed in a row, the type of foundation provided is footing raft strap strip Click here for answer
Level 5555
1. The centre of pressure of a plane submerged area is always below the centre of gravity of the are coincident with centroid of area if its plane is vertical always above the centroid of are independent of the inclination of area Click here for answer 2. The forces coming over the dam is mainly resisted by water pressure uplift pressure self weight of the dam
all the above Click here for answer 3. The turbine in which the runner blades move and adjust themselves during the operation of turbine is called _____ turbine Francis Kaplan Modern Francis All the above Click here for answer 4. A centrifugal pump converts _____ energy into hydraulic energy electrical mechanical kinetic pressure Click here for answer 5. Falling drops of rain acquire spherical shape on account of viscosity surface tension vapour pressure compressibility Click here for answer
6. The vertical component of pressure force on a submerged curved surface is equal to Its horizontal component the force on a horizontal projection of the curved surface the weight of liquid vertically above the curved surface the product of pressure at centroid and surface area Click here for answer 7. Coefficient of resistance Cr for an orifice is equal to (1 - Cv^2) (1/Cv^2 - 1) (1 / Cc^2 Cd^2) (1 - Cd^2 Cv^2) Click here for answer 8. A hydraulic jump is used for increasing the depth of flow reducing the energy of flow decreasing the velocity of flow reducing turbulence Click here for answer 9. For laminar flow through a pipe, the energy correction factor is 1.03
1.05 1.33 2.00 Click here for answer 10. The force required to act upon the jet of water to change the velocity either in direction or in magnitude is called by hydrostatic force dynamic force absolute force power canal Click here for answer 11. The canal through which water is led into mouth of the penstocks is fore day tail race trash rack power canal Click here for answer 12. The device fitted to a reciprocating pump for smooth and uniform flow is called accelerator impeller
booster air vessel Click here for answer 13. Surge tank is provided to prevent the effect of racing of turbine pressure reaction water hammer spilling of water Click here for answer 14. The minimum distance between centres of rivet holes should be 2.5 times the hole diameter 1.5 times the hole diameter 3 times of hole diameter equal to the hole diameter Click here for answer 15. In turbine governing system, the pump used is centrifugal pump reciprocating pump gear pump uplift pump
Click here for answer 16. Bombay harbour is an example of _____ harbour artificial natural excavating dreading Click here for answer 17. The operation of removal of external material from the sea or river bed is known as digging shoveling excavating dredging Click here for answer 18. In case of an external mouth piece the pressures at vena contracta is equal to Ha - 0.98 H Ha - 0.89 H Ha - 0.77 H Ha - 0.87 H Click here for answer
19. If the Young's modulus of elasticity of a material is twice its modulus of rigidity, then the poisson's ratio of the material is -1 -0.5 0.5 0 Click here for answer 20. For an isotropic, homogeneous and elastic material obeying Hook's law, number of independent elastic constants is 2 3 4 1 Click here for answer 21. If a material has identical properties in all directions, it is said to be homogeneous isotropic elastic orthotropic Click here for answer 22. According to Unwin's formula, the diameter of rivet in mm to suit the t mm thickness of plate is given by
6t 6 Sqrt(t) 1.9 Sqrt(t) 1.5t + 4 Click here for answer 23. The sum of normal stresses is constant variable dependent on the planes none of the above Click here for answer 24. A simply supported beam of length l carries a load varying uniformly from zero at left end to maximum at right end. The maximum bending moment occurs at a distance of 1/Sqrt(3) from left end 1/3 from left end 1/Sqrt(3) from right end 1/3 from right end Click here for answer 25. Of the two prismatic beams of same material, length and flexural strength, one is circular and other is square in cross-section, the ratio of weights of circular and square beam is 1.118
1.342 1.000 0.793 Click here for answer 26. For no torsion, the plane of bending should be parallel to one of the principal axis pass through shear centre of section pass through neutral axis of the section pass through centre of gravity of the section Click here for answer 27. A beam of uniform strength has at every cross-section same bending moment bending stress deflection stiffness Click here for answer 28. Effective length of a column fixed at one end hinged at the other end is 1/2 1/Sqrt(2) 2
Sqrt(2) Click here for answer 29. Soundness of cement is tested by permeability impact Le chaterlier Los angles Click here for answer 30. During setting and hardening of concrete _____ is generated Energy Heat Temperature Radiation Click here for answer 31. In a pre-stressed member it is advisable to use low strength concrete only high strength concrete only low strength concrete but high tensile steel high strength concrete and high tensile steel Click here for answer
Level 66666
1. The depth of critical N.A. of the beam is (m.d) / r (m + r) / d (m x d) / (m + r) none of these Click here for answer 2. Minimum spacing between horizontal parallel reinforcement of the same size should not be less than _____ diameters 4 3 2 1 Click here for answer 3. The maximum span to depth ratio of a simply supported slab spanning in both direction is _____ 25 30
35 50 Click here for answer 4. The purpose of ribbed slab is to provide Thermal insulation Acoustic insulation A plain ceiling All of the above Click here for answer 5. In rectangular water tanks, maximum B.M. occurs when depth of water in the tank is equal to _____ the length of short wall 1/4 1/2 3/4 1/5 Click here for answer 6. Rapid hardening cement is actually early _____ cement setting strength hardening curing
Click here for answer 7. The relation between tread I and rise R in cms is given by 4 + 2t = 30 2t + r = 30 2r + t = 60 2r + t = 30 Click here for answer 8. Ductility of steel decreases with a percentage _____ of carbon steel decrease increase improvement reduction Click here for answer 9. _____ ratio of steel, within elastic limit, varies from 0.25 to 0.33 Compression Extension Impact Poisson's Click here for answer 10. If unsupported length of a stanchion is 5 m, slenderness ratio is 100, the least radius of gyration of the cross-section is _____ cm
50 60 10 5 Click here for answer 11. The process of adding extra carbon to the surface of steel is known as _____ Heat treatement Carbon coating Carburising Carbon treatement Click here for answer 12. Hardening of metal is due to heating to a particular temperature and followed by rapid cooling in a _____ media Cooling Tempering Quenching Freezing Click here for answer 13. Maximum shear force occurs at the edge of a base plate in a _____ footing Stepped
Rectangular Square Grillage Click here for answer 14. The slenderness ratio of a tension member should not exceed 350, if the member is subjected to _____ stresses resulting from wind force Compressive Tensile Bending Reversible Click here for answer 15. 0.67 is the effective length of a compression member _____ Fixed at both ends Free at both ends Held in position and restrain in direction at both ends Fixed at both lower end and free at upper end Click here for answer 16. L/2 is the effective length of a column, fixed in _____ at its top and bottom position direction
position & direction none of these Click here for answer 17. 27t is the strength of ISA 155 x 75 x 10 used as a tie member with the longer leg connected at the ends by a _____ mm dia rivet 22 25 27 32 Click here for answer 18. The maximum deflection allowed in steel ties is L/750 L/480 L/350 unlimited Click here for answer 19. The angle of inclination of lacing bars in steel ties should be more than 25 40 60 75
Click here for answer 20. For normal loading conditions on a simply supported beam the breadth of the beam can be assumed as nearly 1/12 of span of the beam 1/16 of span of the beam 1/24 of span of the beam 1/30 of span of the beam Click here for answer 21. When a beam section spans over several supports continuously then the beam at supports should be designed as Singly reinforced beam Doubly reinforced beam Pre-stressed beam Pre-cast beam Click here for answer 22. In a continuous slab the B.M. at middle of interior spans due to super imposed load of intensity W Kg/m run will be Wl^2 / 12 Wl^2 / 10 Wl^2 / 24 Wl^2 / 9 Click here for answer
23. As per IS : 456 in a two-way slab, the width of the middle strip along each span should be 3/8 of the width of span in that direction 3/8 of the width of span at right angles 3/4 of the shortest side of the slab 3/4 of width of the span in that direction Click here for answer 24. The reinforcement provided in the form of ties or stirrups or binders in a column is known as longitudinal reinforcement transverse reinforcement temperature reinforcement distributary reinforcement Click here for answer 25. Load carrying capacity of long columns are less as compared to short columns due to buckling effect of columns crippling effects of columns bending effects of columns twisting effect of columns Click here for answer 26. As per IS : 456 the thickness of footing edge on soils should not be less than
10 cm 12 cm 15 cm 20 cm Click here for answer 27. Generally for piles the concrete used is of the grade M100 M150 M200 M300 Click here for answer 28. The shear force on a beam and the displacement are related by V = El. d^2 y / dx^2 V = El. d^3 y / dx^3 V = El. d^4 y / dx^4 no relation at all Click here for answer 29. The shear stress in a beam is zero At the centroid of the section On the extreme free surface fibers
At the neutral axis but not at the centroid At the free edges Click here for answer 30. The minimum strength of concrete that can be used in the foundations of RCC water tanks of 450 mm thick is about M15 M20 M25 M10 Click here for answer 31. The carbon content in steel does not exceed 0.5% 1.0% 1.5% 2.0% Click here for answer
