Surveying – Section 3

Question No. 11.
in levelling the effect of refraction may be taken as _______of that due to curvature

Question No. 12.
In plane Table the intersection method is preferred when objects to be plotted are

Question No. 8.
To minimise errors in fly levelling

Question No. 14.
The sensivity of a bubble tube can be increased by

Question No. 15.
Reciprocal Levelling is done when

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