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Write the expression for pitch and l...

Write the expression for pitch and least count a screw gauge.

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When circular scale of a screw gauge carrying 100 divisions is given four complete rotation, the head of the screw moves through 2mm. Calculate pitch and least count of the screw gauge.

How are the pitch and least count of a spherometer related ?

Knowledge Check

  • When circular scale of a srew gauge carrying 100 divisions is given four complete rotations, the head of the screw moves through 2mm . The pitch and least count of screw gauge are respectively.

    A
    `1mm` and `0.005mm`
    B
    `0.5mm` and `0.001mm`
    C
    `0.5mm` and `0.005mm`
    D
    `0.005mm` and `0.005mm`

  • A screw gauge advances by 3mm in 6 rotations. There are 50 divisions on circular scale. Find least count of screw gauge

    A
    `0.002` cm
    B
    `0.001` cm
    C
    `0.1`cm
    D
    `0.02` cm

  • When a screw gauge is completely closed, zero of circular scale is 4 division below the reference line of graduation. If least count of screw gauge is 0.001 cm, the zero correction is

    A
    `-0.004 cm`
    B
    `+ 0.004 cm`
    C
    `-0.004 mm`
    D
    `+ 0.004 mm`

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    What is the least count of a standard screw gauge

    A screw gauge has 50 divisions on its circular scale. The circular scale is 4 units ahead of the pitch scale marking , prior to use. Upon one complete ratation of the circular scale, a displacement of 0.5 mm is noticed on the pitch scale . The nautre of zero error involved , and the least count of the screw gauge, are respectively.

    Define least count. Describe the method to find the least count of a screw gague.

    When a screw gauge is completely closed, zero of circular scale is 6 divisions below the reference line of graduation. If least count of screw gauge is 0.001 cm , the zero correction is

    Circular scale of a screw gauge moves through 4 divisions of main scale in one rotation. If the number of divisions on the circular scale is 200 and each division of the main scale is 1 mm., the least count of the screw gauge is

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