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KVPY Sample Paper KVPY Stream-SX Model Paper-17

  • question_answer
    The pitch and the number of divisions, on the circular scale, for a given screw gauge are 0.5 mm and 1" respectively. When the screw gauge is fully tightene. without any object, the zero of its circular scale lie 3 divisions below the mean line. The readings of the main scale and the circular scale for a thin sheet, are  5.5 mm and 48 respectively, the thickness of this sheet is:                                                

    A) 5.755 mm

    B) 5.950 mm

    C) 5.725 mm

    D) 5.740 mm

    Correct Answer: C

    Solution :

    Zero error \[=0+3\times \frac{0.5mm}{100}\]\[=0.015\text{ }mm\]
    \[MSR=5.5+48\times \frac{0.5}{100}\]\[=5.74\text{ }mm\]
    \[\therefore \] Thickenees  \[=\,5.74-0.015\]\[=5.725\text{ }mm.\]


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