Engineering Survey

31) If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is

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90° 30'

32) Contour interval is

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inversely proportional to the scale of the map

33) An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known

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contour gradient

34) The suitable contour interval for a map with scale 1 : 10000 is

35) Contour interval is

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the vertical distance between two consecutive contours

36) The type of surveying which requires least office work is

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plane table surveying

37) Benchmark is established by

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trigonometrical levelling

38) A series of closely spaced contour lines represents a

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steep slope

39) Select the correct statement

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Two contours of different elevations do not cross each other except in case of an overhanging cliff.

40) A level was set up at a point A and distance to the staff station B was 100 m. The net combined correction due to curvature and refraction as applied to the staff reading is

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-0.000673 m

Subject Notes

Objective Box

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