Which of the following introduces an error of about 1 in 1000 if 20 m – McqOptions

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1.	Which of the following introduces an error of about 1 in 1000 if 20 m chain is used
A.	length of chain 20 mm wrong
B.	one end of the chain 0.9 m off the line
C.	one end of chain 0.9 m higher than the other
D.	all the above.
Answer» E.

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