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Question
The correction applied to the measured base of length ‘L’ is
Options:
A .  Tension = (P - Ps)L/AE
B .  Sag = L³w²/24P² where w is the weight of tape/m
C .  Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports
D .  All the above
Answer: Option D

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