engineering recuitment RVUNL JEn (RSEB) Mock Tests 2025 Production Engineering (Manufacturing) Metrology and Inspection Limits, Fits and Tolerances
What is the purpose of using auto-collimator?
1
To measure small angular differences.
2
To measure flatness.
3
To measure concavity.
4
To check surface linearity.
5
To measure surface roughness