Question

What is the principle of vernier?
and

Q12. What do you mean by backlash error in a screw gauge? ​

Answer 1

Answer:

1. The vernier scale works on the principle of using alignment of line segments displaced by a small amount to make fine measurements. Human eye can easily detect this alignment of lines which is the main fact that drives a vernier. A vernier scale has a main scale and a vernier scale.

2. Backlash error in a screw gauge happen When we try to rotate the screw very fast to measure a reading then there is some slipping between the different screws instead of rotation, which gives an incorrect reading, to avoid this we should rotate the screw slowly in only one direction.

Hope it helps :)

Answer 2

➲ ʏᴏᴜʀ ǫᴜᴇsᴛɪᴏɴ:⍰

What is the principle of vernier?

and

What do you mean by backlash error in a screw gauge?

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➻❥ᴀɴsᴡᴇʀ:☑

a) The vernier scale works on the principle of using alignment of line segments displaced by a small amount to make fine measurements.

Human eye can easily detect this alignment of lines which is the main fact that drives a vernier.

b) Backlash error in a screw gauge happen When we try to rotate the screw very fast to measure a reading then there is some slipping between the different screws instead of rotation, which gives an incorrect reading, to avoid this we should rotate the screw slowly in only one direction.