In a field book, the booking is commenced at the bottom of a page and worked upwards.
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Q13: The lines passing through points at which
Q14: A plumb bob is required
A)when measuring distances
Q15: The ratio of the focal length of
Q16: The levelling should always commence from a
Q17: The obstacle, which obstructs vision but not
Q18: In plane surveying,
A)The curvature of the earth
Q19: Chain surveying is most suitable when
A)area to
Q20: The lines of earth's magnetic field run
Q21: The representative fraction 1 / 250° means
Q23: A deflection angle in a traverse is
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