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Measurements and Instrumentation - Engineering

Q1:

A temperature sensistive transducer is subjected to sudden temperature change. It takes 10 seconds for transducer to reach equilibrium condition (five times time constant). The time taken to reach half of temperature difference will be

A 1.38 s

B 5 s

C 8.62 s

D 0.9 s

ANS:A - 1.38 s

The initial change is fast.