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Engineering - Civil Enginnering

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13.

Benchmark is established by

A.	hypsometry	B.	barometric levelling
C.	spirit levelling	D.	trigonometrical levelling

14.

Bowditch rule is applied to

A.	an open traverse for graphical adjustment	B.	a closed traverse for adjustment of closing error
C.	determine the effect of local attraction	D.	none of the above

15.

Closed contours, with higher value inwards, represent a

A.	depression	B.	hillock
C.	plain surface	D.	none of the above

16.

Contour interval is

A.	inversely proportional to the scale of the map	B.	directly proportional to the flatness of ground
C.	larger for accurate works	D.	larger if the time available is more

17.

Contour interval is

A.	the vertical distance between two con-secutive contours	B.	the horizontal distance between two consecutive contours
C.	the vertical distance between two points on same contour	D.	the horizontal distance between two points on same contour

18.

Cross staff is an instrument used for

A.	measuring approximate horizontal angles	B.	setting out right angles
C.	measuring bearings of the lines	D.	none of the above

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