Surveying
If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is

100.655 m
100.345 m
99.345 m
101.870 m

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Surveying
Sidereal day

All listed here
Is the period of time taken by the earth in making a complete rotation with reference to stars
Is divided into the conventional hours, minutes and seconds
Is slightly shorter than an ordinary solar day

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Surveying
Pick up the incorrect statement from the following. In a spherical triangle

Sum of any two sides is greater than the third
Every angle is less than two right angles
Sum of the three angles is equal to two right angles
Sum of the three angles less than six right angles and greater than two right angles

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