logo

CuriousTab

CuriousTab

Discussion


Home Civil Engineering Surveying Comments

  • Question
  • A relatively fixed point of known elevation above datum, is called


  • Options
  • A. bench mark
  • B. datum point
  • C. reduced level
  • D. reference point.

  • Correct Answer
  • bench mark 


  • Surveying problems


    Search Results


    • 1. The area of a plane triangle ABC, having its base AC and perpendicular height h, is

    • Options
    • A. bh
    • B. ba sin C
    • C. bc sin A
    • D. S(S - a)(S - b)(S - c)
      where S is
    • E. all the above
    • Discuss
    • 2. A dumpy level is set up with its eye-piece vertically over a peg A. The height from the top of peg A to the centre of the eye-piece is 1.540 m and the reading on peg B is 0.705 m. The level is then setup over B. The height of the eye-piece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is

    • Options
    • A. 2.900 m
    • B. 3.030 m
    • C. 0.770 m
    • D. 0.785 m
    • E. 1.770 m.
    • Discuss
    • 3. The systematic errors which persist and have regular effects in the performance of a survey operation, are due to

    • Options
    • A. carelessness
    • B. faulty instrument
    • C. inattention
    • D. none of these.
    • Discuss
    • 4. Pick up the correct specification of Ramsden eyepiece from the following :

    • Options
    • A. it consists of two equal piano convex lenses
    • B. the curved surfaces of plano-convex lenses face each other
    • C. the two lenses are separated by a distance equal to 2/3 of the focal length of either lens.
    • D. the distance between the diaphragm and the front lens of the eyepiece is kept equal to 1/4 th of the focal length of a lens so that rays from a point on the diaphragm enter the eye as a parallel beam
    • E. all the above.
    • Discuss
    • 5. Cross hairs in surveying telescopes, are fitted

    • Options
    • A. in the objective glass
    • B. at the centre of the telescope
    • C. at the optical centre of the eye piece
    • D. in front of the eye piece.
    • Discuss
    • 6. Geodetic surveying is undertaken

    • Options
    • A. for production of accurate maps of wide areas
    • B. for developing the science of geodesy
    • C. making use of most accurate instruments and methods of observation
    • D. for determination of accurate positions on the earth's surface of system of control points
    • E. all the above.
    • Discuss
    • 7. In levelling operation

    • Options
    • A. if second reading is more than first, it represents a rise
    • B. if first reading is more than second, it represents a rise
    • C. if first reading is less than second, it represents a fall
    • D. if second reading is less than first, it represents a fall
    • E. both (b) and (c).
    • Discuss
    • 8. The conventional sign shown in below figure represents a

    • Options
    • A. bridge carrying railway below road
    • B. bridge carrying road below railway
    • C. bridge carrying road and railway at the same level
    • D. a level crossing.
    • Discuss
    • 9. A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff readings at A and B were 1.22 and 1.06. With the level set up a A, the readings at A and B were 1.55 and 1.37. The collimation error per 100 m length of sight is

    • Options
    • A. 0.02 m inclined upwards
    • B. 0.04 m inclined downwards
    • C. 0.04 m inclined upward
    • D. none of these.
    • Discuss
    • 10. Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves

    • Options
    • A. embankment on the centre line
    • B. excavation on the centre line
    • C. earth work on the centre line
    • D. none of these.
    • Discuss


    Comments

    There are no comments.

Enter a new Comment