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Civil Engineering :: UPSC Civil Service Exam Questions

  1. The given figure shows the arrow diagram for a particular project. The arrow 'A' is known as

  2. A.
    critical activity
    B.
    sub-critical activity
    C.
    logic arrow
    D.
    dummy activity

  3. In a plane strain problem in XY plane, the shear strain = 12 x 10-6, and the normal strain in X and Y direction = 0, For this state of strain, what is the diameter of the Mohr's Circle of strain ?

  4. A.
    6 x 10-6
    B.
    8 x 10-6
    C.
    12 x l0-6
    D.
    24 x l0-6

  5. A horizontal fixed beam is fixed at both it ends A and B. During loading, the right support sinks by an amount δ. Flexural rigidity of the beam is uniform and is equal to EI. Length of the beam is L. What is the moment developed at the centre of the beam due to sinking of the support ?

  6. A.
    6 EI δ/L2
    B.
    zero
    C.
    3 EI δ/L2
    D.
    12 EI δ/L2

  7. A lighthouse is visible just above the horizon at a certain station at the sea level. The distance between the station and the lighthouse is 40 km. The height of the lighthouse is approximately

  8. A.
    187 m
    B.
    137.7 m
    C.
    107.7 m
    D.
    87.3 m

  9. Which of the following are the additional moments considered for design of slender compression member in lieu of deflectiion x and y directions ?(Where Pu is axial load; lex and ley are effective lengths in respective directions; D depth of section ⊥ to major axis; b width of the member)


  10. A close-coiled helical spring has 100 mm mean diameter and is mada of 20 turns to 10 mm diameter steel wire. The spring carries an axial load of 100 N Modulus of rigidity is 84 GPa. The shearing stress developed in the spring in N/mm2 is

  11. A.
    120/π
    B.
    160/π
    C.
    100/π
    D.
    80/π

  12. Consider the following statements pertaining to plane table survey :
    1. Two-point problem is solved by mechanical method.
    2. Three-point problem is solved by Bessel's method.
    3. In two point problem, auxiliary station is required.
    Of these statements :

  13. A.
    1 and 2 are correct
    B.
    1 and 3 arc correct
    C.
    2 and 3 are correct
    D.
    1, 2 and 3 are correct

  14. If a member is subjected to tensile stress of px, compressive stress of py and tensile stress of pz along the x, y and z directions respectively, then the resultant strain 'ex' along the 'x' direction would be (E is Young's modulus of elasticity, μ is Poisson's ratio)


  15. A cantilever is subjected to a uniformly distributed load W over its whole length 'L' and a concentrated upward force W at its free end. The deflection of the free end is

  16. A.
    zero
    B.
    C.
    D.

  17. The local sidereal time (LST) is always

  18. A.
    ahead of the local mean time (LMT) by about 2 hours per month
    B.
    behind LMT by about 2 hours per month
    C.
    ahead of LMT by about 4 hours per month
    D.
    equal to LMT