Secondary timescales traceable to IST have been set up at Regional Reference Standard Laboratories in how many cities?
- A.Three
- B.Five
- C.Seven
- D.Nine
Show answer
CSIR-NPL, ISRO and the Legal Metrology Department jointly established secondary timescales at Regional Reference Standard Laboratories in Ahmedabad, Bengaluru, Bhubaneswar, Faridabad and Guwahati.
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