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A series of closely spaced contour lines represents a
Closed contours ⇒ Steep slope
Apart contour lines ⇒ Gentle slope
Equally spaced ⇒ Uniform slope Straight parallel and equally speed contours ⇒ plane surface
In order to measure the magnetic bearing of a line, the theodolite should be provided with ______
In order to measure the magnetic bearing of a line, the theodolite should be provided with either a tabular compass or trough compass.
Closed contours, with higher value inwards, represent a
The Bowditch method of adjusting a traverse is based on the assumption that
where e_{1} and e_{2} are errors in linear and angular measurements respectively and l is the length of a line
Accuracy of elevation of various points obtained from contour map is limited to
If L is the perimeter of a closed traverse, ΔD is the closing error in departure, the correction for the departure of a traverse side of length l, according to Bowditch rule, is
Bowditch’s method  Correction to latitude (or departure) of any side
If arithmetic sum of latitudes of a closed traverse is ∑Lat and closing error in latitude is dx, the correction for a side whose latitude is l, as given by Transit Rule, is
Transit method → Correction of latitude (and departure) of any side
If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be
If the sum of northings of a traverse exceeds the sum of southings by 1 m and sum of eastings exceeds the sum of westirigs by 1 m, the resultant closing error and its true bearing respectively are
In a closed traverse, the sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures. The closing line will lie in the
The closing line will have south latitude and east departure. Therefore it will lie in SE quadrant.
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