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1. |
A hot steel spherical ball is suddenly dipped into a low temperature oil bath.Which of the following dimensionless parameters are required to determine instantaneous center temperature of the ball using a Heisler chart? |
A. | Nusselt number and Grashoff number |
B. | Reynolds number and Prandtl number |
C. | Biot number and Froude number |
D. | Biot number and Fourier number |
Answer» E. | |