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Civil Engineering :: UPSC Civil Service Exam Questions

  1. Consider the following statement :
    1. Hydraulic gradient required to initiate "quick" condition is independent of the ratio of volume of voids of solids in a soil mass.
    2. Initiation of piping under hydraulic structures can be prevented by increasing the length of flow path of water.
    3. Seepage pressure is independent of the coefficient of permeability.
    Of these statement :

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

  3. Which of the following waste disposal tasks are achieved by a septic tank with its dispersion tranch ?
    1. Aerobic sluge digestion
    2. Settling and anaerobic sludge digestion
    3. Anaerobic sewage stabilisation
    4. Bio-oxidation of effluent
    Select the correct answer using the codes given below :

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

  5. The expansion and shrinkage of plywoods are comparatively very low as

  6. A.
    they are held in position by adhesives
    B.
    they are glued under pressure
    C.
    plies are placed at right angles to each other
    D.
    they are prepared from veneers

  7. Which one of the following methods is usually adopted for site welding of rails ?

  8. A.
    Gas pressure welding
    B.
    electric are welding
    C.
    Thermit welding
    D.
    Flash butt welding

  9. An imaginary line passing through the optical centre of the objective and the optical centre of the eye-piece in the telescope of a surveying instrument is called the

  10. A.
    horizontal axis
    B.
    line of collimation
    C.
    optical axis of the telescope
    D.
    reference axis

  11. Which of the following air pollutants is/are responsible for photochemical smog ?
    1. Oxides of nitrogen
    2. Ozone
    3. Unburnt hydrocarbons
    4. Carbon monoxide
    Select the correct answer from the codes given below :

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

  13. Consider the following statements :
    Excess of sulphur in steel results in
    1. red shortness
    2. segregation
    3. coldshortness.
    Of these statements :

  14. A.
    1 alone is correct
    B.
    2 alone is correct
    C.
    2 and 3 are correct
    D.
    1 and 2 are correct

  15. Which one of the following pairs is not correctly matched ?

  16. A.
    Declination : Horizontal angle between magnetic meridian & true meridian
    B.
    Bowditch's rule : Employed to adjust closing error of a closed traverse
    C.
    Deflection angle : Measured in case of open traverse instead of measuring included angle
    D.
    Reconnaissance survey : Employed for detailed and precise survey

  17. Consider the following statements :
    Some amount of chlorides is allowed in drinking water because
    1. it helps in killing bacteria.
    2. small quantity of chlorides adds to the taste
    3. it is not injurious to human health.
    4. it is not economical to remove it completely.
    Which of these statements are correct ?

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

  19. A simply supported rectangular beam of span 'L' and depth 'd' carries a central load 'W' What ratio of maximum deflection to maximum bending stress is

  20. A.
    L2/6Ed
    B.
    L28Ed
    C.
    L2/48Ed
    D.
    L2/12Ed