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Question
What do you understand by the term zero error?
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Solution
A vernier callipers is said to have a zero error when zero of the main scale does not coincide with zero of the vernier scale.
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RELATED QUESTIONS
Name the two scales of a vernier callipers and explain how it is used to measure length correct up to 0.01 cm.
Explain the terms : Pitch .
How are they determined?
State the formula for calculating length if:
The reading of the main scale is known and the number of vernier scale divisions coinciding with the main scale is known.
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.
What do you understand by the following term as applied to screw gauge?
Negative zero error
How do you account for negative zero error, for calculating the correct diameter of wires?
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
How will you measure the least count of vernier caliper?
How will you find the Zero Error of Vernier Caliper? Explain.
