MCQOPTIONS
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MCQOPTIONS
This section includes 367 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the loading on a pre-stressed rectangular beam, is uniformly distributed, the tendonto be provided should be. |
| A. | Straight below centroidal axis |
| B. | Parabolic with convexity downward |
| C. | Parabolic with convexity upward |
| D. | Straight above centroidal axis |
| Answer» C. Parabolic with convexity upward | |
| 2. |
If is the overall height of a retaining wall retaining a surcharge, the width ofthe base slab usually provided, is |
| A. | 0.3 H |
| B. | 0.4 H |
| C. | 0.5 H |
| D. | 0.7 H |
| Answer» E. | |
| 3. |
If the length of an intermediate span of a continuous slab is 5m, the length of the endspan is kept |
| A. | 4.5 m |
| B. | 4.0 m |
| C. | 3.5 m |
| D. | 3.0 m |
| Answer» B. 4.0 m | |
| 4. |
If the modularratio is , steel ratio is and overalldepth of a beam is , the depth ofthe critical neutral axis of the beam, is |
| A. | [m/(m - r)] d |
| B. | [m/(m + r)] d |
| C. | [(m + r)/m] d |
| D. | [(r - m)/m] d |
| Answer» C. [(m + r)/m] d | |
| 5. |
Steel bars are generally connected together to get greater length than the standardlength by providing |
| A. | Straight bar splice |
| B. | Hooked splice |
| C. | Dowel splice |
| D. | All the above |
| Answer» E. | |
| 6. |
An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2, thebeam |
| A. | Is safe in shear |
| B. | Is safe with stirrups |
| C. | Is safe with stirrups and inclined bars |
| D. | Needsrevision of section |
| Answer» E. | |
| 7. |
longitudinal bars and lateral stirrups, is |
| A. | Stress in concrete × area of concrete |
| B. | Stress in steel × area ofsteel |
| C. | Stress in concrete × area of concrete + Stress in steel × area of steel |
| D. | None of these |
| Answer» D. None of these | |
| 8. |
The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm2 , safe shear stress 5 kg/cm2 and B.M. 24 mt, |
| A. | Is safe in shear |
| B. | Is unsafe in shear |
| C. | Is over safe in shear |
| D. | Needs redesigning |
| Answer» C. Is over safe in shear | |
| 9. |
In a pre-stressed beam carrying an external load W with a bent tendon is having angle of -stressed load P. The net downward load at the centre is |
| A. | W - 2P |
| B. | W - P |
| C. | W - P |
| D. | W - 2P |
| Answer» E. | |
| 10. |
If is weight of a retainingwall and is the horizontal earth pressure, the factor of safety against sliding, is |
| A. | 1.0 |
| B. | 1.25 |
| C. | 1.5 |
| D. | 2.0 |
| Answer» D. 2.0 | |
| 11. |
If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bondstress, the bond length is given by |
| A. | ft.d/4fb |
| B. | ( /4). (ft.d/fb) |
| C. | ft.d²/fb |
| D. | ( /4). (ft.d3/fb) |
| Answer» B. ( /4). (ft.d/fb) | |
| 12. |
According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 gradeconcrete, is |
| A. | 5 kg/cm2 |
| B. | 10 kg/cm2 |
| C. | 15 kg/cm2 |
| D. | 20 kg/cm2 |
| Answer» B. 10 kg/cm2 | |
| 13. |
The width of the flange of a T-beam, which may be considered to act effectively withthe rib depends upon |
| A. | Breadth of the rib |
| B. | Overall thickness of the rib |
| C. | Centre to centre distance between T-beams |
| D. | All the above |
| Answer» E. | |
| 14. |
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is |
| A. | cAc + m cAsc |
| B. | c(A - Asc) + m cAsc |
| C. | c[A + (m - 1)ASC] |
| D. | All the above |
| Answer» E. | |
| 15. |
For normal cases, stiffness of a simply supported beam is satisfied if the ratio of itsspan to its overall depth does not exceed |
| A. | 10 |
| B. | 15 |
| C. | 20 |
| D. | 25 |
| Answer» D. 25 | |
| 16. |
In the zone of R.C.C. beam where shear stress is less than 5 kg/cm2 , nominal reinforcement is provided at a pitch of |
| A. | One-half lever arm of the section |
| B. | One-third lever arm of the section |
| C. | Lever arm of the section |
| D. | One and half lever arm of the section |
| Answer» D. One and half lever arm of the section | |
| 17. |
If p1 and P2 are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is |
| A. | [( - )/2] h |
| B. | [( + )/4] h |
| C. | [( + )/2] h |
| D. | ( - h |
| Answer» D. ( - h | |
| 18. |
An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is |
| A. | 49.9 kg/cm2 |
| B. | 100 kg/cm2 |
| C. | 250 kg/cm2 |
| D. | 175 kg/cm2 |
| Answer» B. 100 kg/cm2 | |
| 19. |
If is the net upward pressure on a square footing of side for a square column of side , the maximum bending moment is given by |
| A. | B.M = pb (c - a)/4 |
| B. | B.M = pb (b -a)²/4 |
| C. | B.M = pb (b -a)²/8 |
| D. | B.M = pb (b +a)/8 |
| Answer» D. B.M = pb (b +a)/8 | |
| 20. |
If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm2 , the length of the beam having nominal reinforcement, is |
| A. | 8 cm |
| B. | 6 m |
| C. | 8 m |
| D. | 10 m |
| Answer» D. 10 m | |
| 21. |
If is the uniformly distributed load on a circular slab of radius fixed at its ends, the maximum positive radial moment at its centre, is |
| A. | 3WR²/16 |
| B. | 2WR²/16 |
| C. | WR²/16 |
| D. | None of these |
| Answer» D. None of these | |
| 22. |
A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip his |
| A. | WL/P |
| B. | WL/2P |
| C. | WL/3P |
| D. | WL/4P |
| Answer» D. WL/4P | |
| 23. |
If is the load on a circular slab of radius , the maximum radial moment at the centre of the slab, is |
| A. | WR²/16 |
| B. | 2WR²/16 |
| C. | 3WR²/16 |
| D. | 5WR²/16 |
| Answer» D. 5WR²/16 | |
| 24. |
If W is the load on a circular slab of radius R, the maximum circumferential momentat the centre of the slab, is |
| A. | WR²/16 |
| B. | 2WR²/16 |
| C. | 3WR²/16 |
| D. | Zero |
| Answer» D. Zero | |
| 25. |
The maximum ratio of span to depth of a slab simply supported and spanning in twodirections, is |
| A. | 25 |
| B. | 30 |
| C. | 35 |
| D. | 40 |
| Answer» D. 40 | |
| 26. |
If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2 , the share stirrups are provided for a distance from either end where, is |
| A. | 50 cm |
| B. | 100 cm |
| C. | 150 cm |
| D. | 200 cm |
| Answer» D. 200 cm | |
| 27. |
A pile of length carrying a uniformlydistributed load per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is |
| A. | WL/8 |
| B. | WL²/24 |
| C. | WL²/47 |
| D. | WL²/16 |
| Answer» D. WL²/16 | |
| 28. |
If l1 and l2 are the lengths of long and short spans of a two way slab simply supported on four edges and carrying a load w per unit area, the ratio of the loads split into w1 and w2acting on strips parallel to l2 and l1 is |
| A. | w1/w2 = l2/l1 |
| B. | w1/w2 = (l2/l1)² |
| C. | w1/w2 = (l2/l1)3 |
| D. | w1/w2 = (l2/l1)4 |
| Answer» E. | |
| 29. |
If the diameter of longitudinal bars of a square column is 16 mm, the diameter oflateral ties should not be less than |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 8 mm |
| Answer» C. 6 mm | |
| 30. |
If the ratio of the span to the overall depth does not exceed 10, the stiffness of thebeam will ordinarily be satisfactory in case of a |
| A. | Simply supported beam |
| B. | Continuous beam |
| C. | Cantilever beam |
| D. | None of these |
| Answer» D. None of these | |
| 31. |
An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is |
| A. | Safe in shear |
| B. | Is safe with stirrups |
| C. | Is safe with stirrups and inclinedmembers |
| D. | Needsrevision ofthe section |
| Answer» B. Is safe with stirrups | |
| 32. |
Total pressure on the vertical face of a retaining wall of height per unit run exerted by the retained earth weighing per unit volume, is |
| A. | wh [(1 - )/(1 + sin )] |
| B. | wh² [(1 - )/(1 + sin )] |
| C. | wh² [(1 - )/2(1 + sin )] |
| D. | wh²[(1 - )/3(1 + sin )] |
| Answer» D. wh²[(1 - )/3(1 + sin )] | |
| 33. |
Side face reinforcement shall be provided in the beam when depth of the web in abeam exceeds |
| A. | 50 cm |
| B. | 75 cm |
| C. | 100 cm |
| D. | 120 cm |
| Answer» C. 100 cm | |
| 34. |
is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is. The minimum stress on the beam subjected to a maximum bending moment is |
| A. | f = (P/A) -(Z/M) |
| B. | f = (A/P) -(M/Z) |
| C. | f = (P/A) - (M/Z) |
| D. | f = (P/A) - (M/6Z) |
| Answer» D. f = (P/A) - (M/6Z) | |
| 35. |
If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth(D) of the footing from punching shear consideration, is |
| A. | D = W (a - b)/4a²bq |
| B. | D = W (a² -b²)/4a²bq |
| C. | D = W (a² -b²)/8a²bq |
| D. | D = W (a² - b²)/4abq |
| Answer» C. D = W (a² -b²)/8a²bq | |
| 36. |
In a doubly-reinforced beam if and is the effective depth and is depth of critical neutral axis, the following relationship holds good |
| A. | mc/t = n/(d - n) |
| B. | (m + c)/t = n/(d + n) |
| C. | (t + c)/n = (d + n)/n |
| D. | mc/t = (d - n)/t |
| Answer» B. (m + c)/t = n/(d + n) | |
| 37. |
The zone in which transverse bending is likely to occur may be obtained by drawing aline from the |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | None of these |
| Answer» C. 60° | |
| 38. |
Top bars are extended to the projecting parts of the combined footing of two columns Ldistance apart for a distance of |
| A. | 0.1 L from the outer edge of column |
| B. | 0.1 L from the centre edge of column |
| C. | Half the distance of projection |
| D. | One-fourth the distance of projection |
| Answer» C. Half the distance of projection | |
| 39. |
A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm2 , the area of steel required, is |
| A. | 14 cm2 |
| B. | 15 cm2 |
| C. | 16 cm2 |
| D. | 17 cm2 |
| Answer» D. 17 cm2 | |
| 40. |
The modular ratio m of a concrete whose permissible compressive stress is C, maybe obtained from the equation. |
| A. | m = 700/3C |
| B. | m = 1400/3C |
| C. | m = 2800/3C |
| D. | m = 3500/3C |
| Answer» D. m = 3500/3C | |
| 41. |
If the permissible compressive stress for a concrete in bending is C kg/m2 , the modular ratio is |
| A. | 2800/C |
| B. | 2300/2C |
| C. | 2800/3C |
| D. | 2800/C2 |
| Answer» D. 2800/C2 | |
| 42. |
If p1 and p2 are mutually perpendicular principal stresses acting on a soil mass, the normal stress to the principal plane carrying the principal stress p1, is: |
| A. | [(p - p p p sin 2 |
| B. | [(p - p p p cos 2 |
| C. | [(p p p - p cos 2 |
| D. | [(p p p - p /2] sin 2 |
| Answer» D. [(p p p - p /2] sin 2 | |
| 43. |
If p1 is the vertical intensity of pressure at a depth h on a block of earth weighing w per unit p2 is |
| A. | wh (1 - cos )/(1 + ) |
| B. | wh (1 - sin )/(1 + ) |
| C. | wh (1 - tan )/(1 + ) |
| D. | w (1 - cos )/h (1 + sin ) |
| Answer» C. wh (1 - tan )/(1 + ) | |
| 44. |
In a combined footing if shear stress does not exceed 5 kg/cm2 , the nominal stirrups provided are |
| A. | 6 legged |
| B. | 8 legged |
| C. | 10 legged |
| D. | 12 legged |
| Answer» C. 10 legged | |
| 45. |
is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is |
| A. | f = (P/A) +(Z/M) |
| B. | f = (A/P) +(M/Z) |
| C. | f = (P/A) + (M/Z) |
| D. | f = (P/A) + (M/6Z) |
| Answer» D. f = (P/A) + (M/6Z) | |
| 46. |
If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads). |
| A. | y = L - (l - ) |
| B. | y = L/2 + (l - ) |
| C. | y = L/2 - (l + ) |
| D. | y = L/2 - (l - ) |
| Answer» E. | |
| 47. |
If is the sectional area of a pre-stressed rectangular beam provided with a tendon pre-stressed by a force through its centroidal longitudinal axis, the compressive stress in concrete, is |
| A. | P/A |
| B. | A/P |
| C. | P/2A |
| D. | 2A/P |
| Answer» B. A/P | |
| 48. |
For a circular slab carrying a uniformly distributed load, the ratio of the maximumnegative to maximum positive radial moment, is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 5 |
| Answer» C. 3 | |
| 49. |
If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover tomain bars is |
| A. | 10 mm |
| B. | 12 mm |
| C. | 14 mm |
| D. | 16 mm |
| Answer» E. | |
| 50. |
In a combined footing if shear stress exceeds 5 kg/cm2 , the nominal stirrups provided are: |
| A. | 6 legged |
| B. | 8 legged |
| C. | 10 legged |
| D. | 12 legged |
| Answer» E. | |