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Civil Engineering :: UPSC Civil Service Exam Questions

  1. A train starts from rest on a curved track of radius 800 m. Its speed increases uniformly and after 3 minutes it is 72 km/hr. Its normal acceleration after 2 minutes is

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  3. A hollow cylinder made of wood (sp. gr. = 0.8) has an external diameter of 1.0 m and an interal diameter of 0.6 m. It floats in water with its axis vertical and is in stable equilibrium. This is possible only when the length of the cylinder is equal to or less than

  4. A.
    0.72 m
    B.
    0.95 m
    C.
    1.03 m
    D.
    1.20 m

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  5. In a fillet weld the weakest section is the

  6. A.
    smaller side of the fillet
    B.
    throat of the fillet
    C.
    side perpendicular to force
    D.
    side parallel to force

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  7. A beam ABC is simply-supported at A and B with an overhang BC as shown in the given figure. It carries loads as shown in the figure. If both the reactions are equal then W will be equal to

  8. A.
    8P/5
    B.
    5P/8
    C.
    5P/4
    D.
    4P/5

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  9. Which one of the following is the correct statement ?
    Smaller size of aggregates in a concrete mix :

  10. A.
    provides larger surface area for bonding with the mortar matrix which increases the compressive strength and reduces the stress concentration at the mortar-aggregate interface
    B.
    is economical as the concrete mix is more dense
    C.
    requires lesser cement for a particular water-cement ratio and hence is economical
    D.
    is beneficial as these aggregates can pass through the reinforcement bars more easily

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  11. If Δ p is increment ofpressure on a normally consolidated saturated soil mass, as per Terzaghi's theory at the instant of application of pressure increment i.e. when time t = 0, what is the pore pressure developed in the soil mass ?

  12. A.
    Zero
    B.
    Very much less than Δ p
    C.
    Equal to Δ p
    D.
    Greater than Δ p

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  13. A normally consolidated clay layer settles by 25 mm when the effective stress is increased from 15 kPa to 30 kPa. If the effective stress is later increased further from 30 kPa to 60 kPa, then the additional settlement would be

  14. A.
    25 mm
    B.
    50 mm
    C.
    75 mm
    D.
    100 mm

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  15. Assuming the safe stopping sight distance to be 80 m on a flat highway section and with a setback distance of 10 m, what would be the radius of the negotiable horizontal curve ?

  16. A.
    800 m
    B.
    160 m
    C.
    80 m
    D.
    70 m

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  17. What is the time by which the completion of an activity can be delayed without affecting the start of succeeding activities, called ?

  18. A.
    Total float
    B.
    Interfering float
    C.
    Independent float
    D.
    Free float

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  19. Which one of the following is the angular distance between the observer's meridian and the vertical circle passing through a star measured along the celestial horizon ?

  20. A.
    Right ascension
    B.
    Azimuth
    C.
    Declination
    D.
    Hour angle

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