Teaching HPSC Lecturer (Technical) Mock Test 2024 Production Engineering (Manufacturing) Metrology and Inspection
The term 'grating' in metrology means that
1
Rulings are more closely spaced, producing a periodic pattern without blank gaps
2
Rulings follow a logarithmic scale
3
Rulings need not have any pattern
4
Rulings are spaced relatively far apart, requiring some type of interpolating device to make accurate settings
5
Question Not Attempted