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Civil Engineering :: UPSC Civil Service Exam Questions

  1. Consider the following types of soil tests :
    1. California bearing ratio
    2. Consolidation
    3. Unconfined compression
    The soil tests required to be done in the case of undisturbed samples include

  2. A.
    1, 2 and 3
    B.
    1 and 2
    C.
    1 and 3
    D.
    2 and 3

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  3. A cantilever beam AB, fixed at A and carrying a load W at the free end B, is found to deflect by δ at the mid-point of AB. The deflection of B due to a load W/2 at the mid-point will be

  4. A.
    B.
    δ
    C.
    δ/2
    D.
    δ/4

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  5. A plan of an area drawn with the original scale of 1 cm = 10 m, has shrunk such that a line, originally 15 cm long on the plan, measures now 14.5 cm. The shrunk scale is given by 1 cm equal to

  6. A.
    0.97 m
    B.
    9.70 m
    C.
    10.34 m
    D.
    10.97 m

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  7. In a tree, the cambium layer is situated between :

  8. A.
    the outer bark and inner bark
    B.
    the inner bark and sap wood
    C.
    the sap wood and heart wood
    D.
    the pith and heart wood

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  9. Two closed thin vessels, one cylindrical and the other spherical with equal internal diameter and wall thickness are subjected to equal internal fluid.pressure. The ratio of hope stresses in the cylindrical to that of spherical vessels is

  10. A.
    4.0
    B.
    2.0
    C.
    1.0
    D.
    0.5

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  11. Total elongation of a prismatic bar of length L, weight W, cross-sectional area A and modulus of elasticity E, under its own weight, while hanging vertically, is

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  13. For a partially saturated soil, Δu the increase in pore water pressure, when no drainage is permitted, is expressed as (where A and B are Skempton's pore pressure parameters and Δσ1 and Δσ3 are major and minor principal stress increments)

  14. A.
    Δu = B[Δσ3 + A(Δσ1 - Δσ3)]
    B.
    Δu = A[Δσ3 + B(Δσ1 - Δσ3)]
    C.
    Δu = Δσ3 + A(Δσ1 - Δσ3)]
    D.
    Δu = Δσ3 + B(Δσ1 - Δσ3)]

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  15. The shear force diagram for a simple supported beam of span 'l' is given in the figure. The maximum bending moment is

  16. A.
    B.
    C.
    Wl1
    D.
    W(l - 2l1)

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  17. A compound bar consisting of material A and B is tightly secured at the ends. The coefficients of thermal expansion of A is more than that of B. When the temperature is increased the stresses induced will be

  18. A.
    tensile in both the materials
    B.
    tensile in material A and compressive in material B
    C.
    compressive in material A and tensile in material B
    D.
    compressive in both the materials

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  19. Couple M is applied at C on a simply supported beam AB. What is the maximum shear force for the beam ?

  20. A.
    Zero
    B.
    M
    C.
    2 M/3
    D.
    M/3

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