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प्रश्न
How the backlash error is avoided?
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उत्तर
It is avoided by turning the screw always in the same direction.
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संबंधित प्रश्न
Explain the terms : Least count of a screw gauge.
How are they determined?
Draw a neat and labelled diagram of a screw gauge.
Name its main parts and state their functions.
A screw has a pitch equal to 0.5 mm. What should be the number of divisions on its head so as to read correctly up to 0.001 mm with its help?
When does a vernier callipers has the positive error?
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.
For what range of measurement is micrometre screw gauge used?
What do you understand by the term least count of screw?
The following figure shows the reading of a vernier caliper used for measuring the thickness of a metal sheet.
(i) Find the least count of the instrument.
(ii) Calculate the thickness of the metal sheet.
On a vernier calliper, 25 vernier scale divisions are equal in length to 24 main scale divisions. One main scale division is 1 mm. Find the least count of the instrument.
