In a vernier caliper, the small scale that slides along the main scale is called:
Vernier scale
In this question, we need to identify the name of the small scale that slides along the main scale in a vernier caliper. Let's break down the concepts:
Understanding the Vernier Caliper:
A vernier caliper is a precision instrument used to measure dimensions with high accuracy. It consists of two main components:
- Main Scale: This is a fixed scale marked in millimeters (or inches) on the body of the caliper.
- Secondary Scale (Sliding Scale): This is the smaller scale that can slide over the main scale. It is used to read smaller increments precisely.
Explanation of the Options:
- Vernier Scale: This is the correct term for the sliding scale. The vernier scale provides an auxiliary scale that allows for finer measurements by reading between the lines of the main scale.
- Pitch Scale: This term is generally associated with thread measurements, especially in screw threads, and is not related to vernier calipers.
- Angular Scale: This scale is used for measuring angles, not linear dimensions as in a vernier caliper.
- Limit Gauge Scale: This term relates to gauge limits and is irrelevant to the sliding mechanism of a vernier caliper.
With the detailed analysis of the components, we can conclude that the small scale that slides along the main scale in a vernier caliper is known as the Vernier Scale.
Conclusion:
The correct answer is: Vernier scale. This is the sliding scale responsible for enhancing measurement precision in vernier calipers by providing additional, smaller markings for accurate readings.
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Important Questions from Caliper
How many divisions are graduated on the thimble of micrometer?
The least count of Vernier bevel protractor is ____
In a Vernier calliper, 39 main scale divisions are divided into 40 equal points on the Vernier scale. Then what is its least count (LC) in mm? (Take the value of main scale division = 1mm).
Why are calipers generally used along with a steel rule in workshop measurement?
In a vernier caliper, 50 vernier scale divisions coincide with 49 main scale divisions. If one main scale division is 1 mm, what is the least count?
