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Measuring Instrument Least Count | Explained in Simple Way 🔧📏

Description:
In this video, we will learn about Least Count of Measuring Instruments — one of the most important basic concepts in engineering measurement and metrology. Least count means the smallest value that an instrument can measure accurately. Every measuring tool, like a Vernier Caliper, Micrometer, Steel Scale, Dial Gauge, or Screw Gauge, has a specific least count that defines its precision level.

We’ll explain:
✅ What is Least Count?
✅ Formula to Calculate Least Count
✅ Least Count of Common Instruments (Scale, Vernier Caliper, Micrometer, etc.)
✅ Importance of Least Count in Engineering Measurements
✅ How to Improve Measurement Accuracy

This topic is very important for ITI, Diploma, and Mechanical Engineering students, as well as for those preparing for technical interviews and apprenticeship exams.

Example:
If a Vernier caliper’s main scale has 1 mm divisions and the Vernier scale has 10 divisions equal to 9 mm, then its Least Count = 1 mm / 10 = 0.1 mm.

📚 Watch the full video to clearly understand how to find least count and why it’s crucial in precision engineering measurements.


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