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An object is held firmly in between the ...

An object is held firmly in between the two studs of a screw gauge. By looking into the arrangement shown product the possible reading of the object. The main scale / pitch scale is graduated in 0.5 mm as can be seen in the diagram. The arrangement is past of the screw gauge apparatus with object in between the studs. (Consider head scale has 100 divisions). The column - I shows the possible situations of the screq gauge apparatus and column - II situations of the screw gauge apparatus and column - II shows corresponding reading of the object. Match the columns appropriately.
`{:(,"Column - I",,"Column - II"),((A),"Instument has zer error" +6,(P),3.72 mm),((B),"Instument hass zero error" +8,(Q),3.70 mm),((C ),"Instument has zero error"-6,(R ),3.076 mm),((D),"Instument has zero no error",(S),3.69 mm):}`

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The correct Answer is:
A-Q; B-S; C-R; D-P
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