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Civil Engineering :: UPSC Civil Service Exam Questions

  1. In an aerial photo, the image of the top of a tower is found to be 10 cm from the centre of thephotograph. If the height of the tower is 100 m and the flying height of the aircraft is 1000 m above the average terrain height, then the height displacement of the image from the true position will be

  2. A.
    10 mm
    B.
    20 mm
    C.
    50 mm
    D.
    100 mm

  3. Which of the following are the requirements for the design of a transition curve for a highway system ?
    1. Rate of change of grade
    2. Rate of change of radial acceleration
    3. Rate of change of super elevation
    4. Rate of change of curvature
    Select the correct answer using the code given below :

  4. A.
    1, 2 and 3
    B.
    2, 1 and 4
    C.
    1, 3 and 4
    D.
    2, 3 and 4

  5. The void-pressure diagram is shown above. What is the coefficient of compressibility ?

  6. A.
    0.5 m2/t
    B.
    0.73 m2/t
    C.
    0.20 m2/t
    D.
    0.25 m2/t

  7. A propped cantilever of span 'L' is subjected to a concentrated load at mid-span. If Mp is plastic moment capacity of the beam, then the value of the collapse load will be


  8. A propped cantilever of span 'l' carries uniformly distributed load of 'w' per unit over its entire span. The value of prop react to keep the beam horizontal is


  9. When two roads with two-lane, two-way traffic, cross at an uncontrolled intersection, the total number of potentional major conflict points would be

  10. A.
    32
    B.
    24
    C.
    16
    D.
    4

  11. If the load, warping and frictional stresses in a cement concrete slab are 210 N/mm2, 290 N/mm2 and 10 N/mm2 respectively, the critical combination of stresses during summer midday is

  12. A.
    290 N/mm2
    B.
    390 N/mm2
    C.
    490 N/mm2
    D.
    590 N/mm2

  13. From a circular plate of diameter D, whose centre is C, another circular plate of diameter AC is cut, removed and kept over CB (in the given figure). The thickness of the plate is uniform. The shift of the centroid due to this operation will be

  14. A.
    D/4 to the left of C
    B.
    D/8 to the right of C
    C.
    D/4 to the right of C
    D.
    3D/8 to the right of C

  15. Consider the following statements :
    1. Infiltration galleries are placed along the river beds at a depth of 4 to 6 m.
    2. The draw-down for the infiltration galleries is more than that for radial wells.
    3. Clogging of pipe pores in inflitration galleries is less than that for radial wells.
    4. The cost of extracting unit volume of water is more in case of infiltration galleries as compared to radial wells.
    Which of the statements given above is/are correct ?

  16. A.
    1 and 2
    B.
    1, 2 and 3
    C.
    2, 3 and 4
    D.
    4 only

  17. What is the actual ground area covered by a 20 cm x 20 cm size vertical aerial photograph, at an average scale of 1 cm = 200 m having 60% forward overlap and 30% side overlap ?

  18. A.
    1.92 km2
    B.
    4.48 km2
    C.
    6.72 km2
    D.
    2.88 km2