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Civil Engineering :: Surveying

  1. With the rise of temperature, the sensitivity of a bubble tube

  2. A.

     decreases

    B.

     increases

    C.

     remains unaffected

    D.

     none of the above


  3. Direct method of contouring is

  4. A.

     a quick method

    B.

     adopted for large surveys only

    C.

     most accurate method

    D.

     suitable for hilly terrains


  5. The correction applied to the measured base of length ‘L’ is

  6. A.

     Tension = (P - Ps)L/AE

    B.

     Sag = L³w²/24P² where w is the weight of tape/m

    C.

     Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports

    D.

     All the above


  7. The shortest distance between two places measured along the surface of the earth, is

  8. A.

     Length of the equator between their longitudes

    B.

     Length of the parallel between their longitudes

    C.

     Length of the arc of the great circle passing through them

    D.

     None of these


  9. Longitude of a place is the angular distance between the meridian of the place and

  10. A.

     The standard meridian

    B.

     The International Date Line

    C.

     That of Greenwich

    D.

     Both (A) and (C) of above


  11. If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is

  12. A.

     30°

    B.

     35°

    C.

     30°

    D.

     45°


  13. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is

  14. A.

     80°

    B.

     70°

    C.

     60°

    D.

     40°


  15. Triangulation surveys are carried out for locating

  16. A.

     Control points for surveys of large areas

    B.

     Control points for photogrammetric surveys

    C.

     Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc.

    D.

     All the above


  17. For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through

  18. A.

     Isocenter

    B.

     Plumb point

    C.

     Principal point

    D.

     None of these


  19. If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to

  20. A.

     1°

    B.

     2°

    C.

     3°

    D.

     4°