Surveying And Levelling multiple choice questions and answers

21.  The principal of tachometry is used

   A. For locating contours

   B. On hydrographic survey

   C. For filling in detail in topographic surveys

   D. All of the above

22.  The spacing of cross-section in a hilly country is usually

   A. 5 m

   B. 10 m

   C. 15 m

   D. 20 m

23.  The length of peg interval for flat curves is

   A. 15 m

   B. 20 m

   C. 25 m

   D. 30 m

24.  At the magnetic poles the amount of dip is

   A. 0^o

   B. 45^o

   C. 60^o

   D. 90^o

25.  Direct ranging is possible only when the end station are

   A. Close to each other

   B. Not more than hundred metre apart

   C. Mutually intervisible

   D. Located at highest points in the sea

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