civil engineering MCQs – Page 24

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs

461. A beam curved in plan is designed for_______________?
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A. bending moment, shear and torsion

B. bending moment and torsion

C. bending moment and shear

D. shear and torsion

462. If is the uniformly distributed load on a circular slab of radius maximum positive radial moment at its centre, is__________________?
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A. None of these

B. 3WR/16

C. 2WR/16

D. WR/16

463. Due to circumferential action of the spiral in a spirally reinforced column________________?
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A. capacity of column is decreased

B. ductility of column reduces

C. capacity of column is decreased but ductility of column increases

D. both the capacity of column and ductility of column increase

464. If the foundations of all the columns of a structure are designed on the total live and dead load basis, then_________________?
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A. there will be no differential settlement

B. the settlement of exterior columns will be more than interior columns

C. the settlement of interior columns will be more than exterior columns

D. there will be no settlement of columns

465. Valid range for n, the percentage voids, is______________?
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A. n<0

B. 0

C. 0<n0

466. Lapped splices in tensile reinforcement are generally not used for bars of size larger than______________?
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A. 30 mm diameter

B. 36 mm diameter

C. 18 mm diameter

D. 24 mm diameter

467. Water content of soil can______________?
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A. never be greater than 100 %

B. take values only from 0 % to 100 %

C. be greater than 100 %

D. be less than 0 %

468. For a ribbed slab______________?
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A. Clear spacing between ribs shall not be greater than 4.5 cm

B. Width of the rib shall not be less than 7.5 cm

C. All the above

D. Overall depth of the slab shall not exceed four times the breadth of the rib

469. Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ?
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A. elastic shortening of concrete

B. loss due to friction

C. creep of concrete

D. shrinkage of concrete

470. In reinforced concrete footing on soil, the minimum thickness at edge should not be less than______________?
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A. 100 mm

B. 250 mm

C. 200 mm

D. 150 mm

471. Uniformity coefficient of a soil is__________________?
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A. always equal to 1

B. always less than 1

C. equal to or less than 1

D. equal to or gi eater than 1

472. When shear stress exceeds the permissible limit in a slab, then it is reduced by____________?
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A. increasing the depth

B. using high strength steel

C. using thinner bars but more in number

D. providing shear reinforcement

473. Skemptons pore pressure coefficient B for saturated soil is________________?
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A. zero

B. between 0 and 1

C. greater than 1

D. 1

474. A T-shaped retaining wall mainly conssits of_________________?
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A. one cantilever

B. two cantilevers

C. three cantilevers

D. four cantilevers

475. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is__________________?
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A. Square

B. Trapezoidal

C. Triangular

D. Rectangular

476. In hydrometer analysis for a soil mass______________?
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A. both meniscus correction and dispersing agent correction are additive

B. both meniscus correction and dispersing agent correction are subtractive

C. meniscus correction is additive and dispersing agent correction is subtractive

D. meniscus correction is subtractive and dispersing agent correction is additive

477. If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are________________?
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A. 0.0 and 1.0

B. 1.0 and 0.0

C. 0.5 and 1.0

D. 1.0 and 0.5

478. When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as_____________?
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A. negative

B. 1

C. non-plastic (NP)

D. zero

479. Which of the following methods is more suitable for the determination of permeability of clayey soil ?
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A. horizontal permeability test

B. falling head method

C. none of the above

D. constant head method

480. 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________________?
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A. f = (P/A) (M/Z)

B. f = (P/A) (M/6Z)

C. f = (P/A) (Z/M)

D. f = (A/P) (M/Z)

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