Home / Unit-1 Physical Quantities and Measurement / Question
MCQ
The least count of a screw gauge is given by:
Unit-1 Physical Quantities and Measurement
A Pitch / number of circular scale divisions
B Number of divisions x pitch
C Pitch x circular scale divisions
D Main scale reading / vernier divisions
Explanation

Least count of a screw gauge is defined as pitch divided by the total number of divisions on the circular scale.

Related MCQs

The total reading of a vernier calliper is calculated as:
Unit-1 Physical Quantities and Measurement View
In a screw gauge, the zero of the circular scale lies below the base line of the main scale. The zero error is:
Unit-1 Physical Quantities and Measurement View
One pascal (Pa), the SI unit of pressure, is equal to:
Unit-1 Physical Quantities and Measurement View
Two lengths 12.5 m and 3.25 m are added. According to the rules for addition, the result should be written as:
Unit-1 Physical Quantities and Measurement View
What is the SI unit of time?
Unit-1 Physical Quantities and Measurement View
The diameter of a wire is measured as 2.52 mm with a screw gauge having a zero error of +0.02 mm. The correct diameter is:
Unit-1 Physical Quantities and Measurement View