Reading a grade rod in tenths

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Reading a grade rod in tenths

Postby Billy bob » Wed Apr 30, 2008 3:54 am

On a tenths grade rod what do the hash marks represent like 1/10 or 2/10 for the first mark?
Billy bob

Postby Guest » Wed Apr 30, 2008 4:52 am

The feet and tenths should be pretty clearly marked numerically.

The hash pattern can be a little different on different rods. But usually the black marks are 50%, and the white space between is the same dimension. The black and white marks are each 0.01 feet, BUT there are only five black marks between tenths because there are also five white marks. It is not quite like fine lines on a ruler.

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