General Studies · Metrology
As per IS 2949, a 100 mm long (nominal size) 'V' Block capable of clamping workpieces between 5 to 90 mm in diameter and of Grade A will be designated as:
- 1'V' Block M 100/5-90 A I.S. 2949
- 2'V' Block 100/5-90 I.S. 2949
- 3'V' Block M 100/5-90 I.S. 2949
- 4'V' Block 100/5-90 A I.S. 2949✓
Correct answer
'V' Block 100/5-90 A I.S. 2949
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