The time taken by the machine to attain 0.632 of its final steady temperature rise is called_____________?
Correct answer: A. heating time constant
- A. heating time constant
- B. cooling time constant
- C. either A. or B.
- D. none of the above
Explanation
For exponential heating, the temperature reaches 1 − e⁻¹ = 0.632 of its final value after one heating time constant. A cooling time constant applies to the corresponding cooling curve.
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