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Civil Engineering :: UPSC Civil Service Exam Questions

  1. What is the magnitude of the resultant of parallel force system as shown in the figure ?

  2. A.
    70 kNm
    B.
    zero
    C.
    70 KNm couple anti clock wise
    D.
    90 KN veritical force and a moment of 70 kNm clock wise.

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  3. A rod shown in the given figure is such that the lower part is made of steel and the upper part is made of copper. Both the ends of the rod are rigidly clamped. If an axial force P is applied at the junction of the two metals, given that the ratio Esteel/ECopper is equal to 2, then the force in the copper rod would be

  4. A.
    P/5 tension
    B.
    P/3 tension
    C.
    P/3 compression
    D.
    P/5 compression

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  5. 'Air binding' may occur in

  6. A.
    Sewers
    B.
    Artesian well
    C.
    Aerator
    D.
    Filter

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  7. For a vertical concentrated load acting on the surface of a semi-infinite elastic soil mass, the vertical normal stress at depth z is proportional to

  8. A.
    z
    B.
    z2
    C.
    z3
    D.
    1/z2

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  9. Presence of nitrogen in waste water sample is due to the decomposition of

  10. A.
    Carbohydrates
    B.
    Proteins
    C.
    Fats
    D.
    Vitamins

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  11. The effective length of a fillet weld of length 'L' and size 's' is given by

  12. A.
    L - s
    B.
    L - 2s
    C.
    D.
    L

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  13. Two reservoirs are connected by two pipes A and B of same and length in series. If the diamerer of A is 30% larger than that of B, what is the ratio of head loss in A to that of B ?

  14. A.
    0.77
    B.
    0.59
    C.
    0.50
    D.
    0.27

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  15. A smooth sphere of weight W is supported in contact with a smooth vertical wall by a string fastened to a point on its surface, the other end being attached to a point in the wall as shown in the given figure. If the length of the string is equal to the diameter of the sphere, then the tension in the string and the reaction of the wall respectively will be

  16. A.
    4W/3, 2W/3
    B.
    2W/3, W/3
    C.
    5W/3, W/3
    D.
    3W/3, W/3

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  17. In an external focussing tacheometer, the fixed interval between the stadia hairs is 5 mm; the focal length of the objective is 25 cm ; and the distance of the vertical axis of the instrument from the optical centre of the objective is 15 cm. The constants of the tacheometer are

  18. A.
    50 ; 0.40 m
    B.
    50 ; 0.25 m
    C.
    100 ; 0.40 m
    D.
    30 ; 0.10 m

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  19. On a single rail track, goods trains loaded with heavy iron material run starting from A to B and then empty wagons run from B to A.
    The amount of creep in the rails

  20. A.
    will be more in the direction of B to A
    B.
    will be more in the direction of A to B
    C.
    will be maximum in the direction of A and B
    D.
    cannot be determined from the given data

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