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प्रश्न
State one use of a screw gauge.
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उत्तर
A screw gauge is used for measuring diameter of circular objects mostly wires with an accuracy of 0.001 cm.
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संबंधित प्रश्न
Define the term 'Vernier constant'.
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
Draw a neat and labelled diagram of a screw gauge.
Name its main parts and state their functions.
Which part of vernier callipers is used to measure the internal length of a hollow cylinder?
How the backlash error is avoided?
What is the least count in the case of the following instrument?
Screw gauge
The following diagrams (Fig. 5) show the use of a vernier caliper under three different situations. Study the diagrams carefully and note down the vernier readings in each case.
(a) Measuring the diameter of the rod
(b) Measuring Internal diameter of a cavity
(c) Measuring depth of a cavity
