An imaginary line lying throughout on the surface of the earth and preserving a constant inclination to the horizontal, is called

A)
level line
B)
contour line
C)
line of gentle scope
D)
contour gradient

Correct Answer :   contour gradient

Recently Updated in Surveying Questions
A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is_______.
A)
202.75 m
B)
206.75 m
C)
208.75 m
D)
211.75 m

Correct Answer : Option (B) :   206.75 m

In a closed traverse, sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures, then, the closing line will lie in
A)
north east quadrant
B)
north-west quadrant
C)
south-west quadrant
D)
south-east quadrant

Correct Answer : Option (B) :   north-west quadrant

The Huygen's telescope eye piece________.
A)
achromatic
B)
is aplanatic
C)
Both (A) and (B)
D)
Neither (A) nor (B)

Correct Answer : Option (C) :   Both (A) and (B)

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