Question

The zero reading of the circular scale of a screw gauge is 97. what is the zero error in csd and in mm? what is the zero correction in csd and in mm?least count is 0.01mm

Answer 1

Answer:

The zero error is negative.To count the zero error multiply the value of it by least count.So zero error is 0.97mm......

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Answer 2

It is given that,

The reading is 97

So, its a negative error of (100-97)=3

So, the error is -3 in csd and there is no error in mm

So, there is no need of correction in error in mm

But correction in error of csd is +3