Which use of calipers involves transferring a dimension from a workpiece to a scale?
Indirect measurement transfer
Simple calipers, such as outside and inside calipers, are transfer tools; they have two curved legs but carry no graduations of their own.
They cannot show a number directly, they can only hold or capture a distance set between their legs.
To measure a feature, the legs are opened until they just span the diameter or width of the workpiece, locking in that dimension.
That captured setting is then carried across to a steel rule or scale, where the distance between the legs is read off.
Because the value is obtained by transferring the setting to a separate graduated scale, this is called indirect measurement transfer.
Direct measurement reading would apply only to a self-graduated instrument such as a vernier caliper, which shows the size on the tool itself.
Comparing internal and external sizes describes a different comparative use, and setting out parallel lines is a marking-out task, not a transfer of a dimension to a scale.
Hence, the answer is Indirect measurement transfer.
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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, the small scale that slides along the main scale is called:
