In fluid flow, heat and mass transfer, one encounters (i) kinematic viscosity μ (ii) molecular diffusivity (θ) and (iii) thermal diffusivity (α) the units of these quantities are:
A. μ, α and θ all have units of m/s
B. μ α and θ all have units of m2/s
C. μ and θ have units of m2/s while μ has units of m/s
D. μ and θ have units of m/s while μ has units of m2/s
Answer: Option C
This Question Belongs to Metallurgical Engineering >> Miscellaneous In Metallurgy
The extending the polymer chain by successive addition of monomers units is called
A. Propagation
B. Termination
C. Both A and B
D. None of these
If Reynolds number is greater than 1, then the
A. Viscous force is larger than the inertia force
B. inertia force is larger than the viscous force
C. inertia force is larger than the surface tension force
D. inertia force is larger than the gravitational force
Which is the correct (degree) temperature range for spherodized carbide in low carbon steel
A. 750-950°C
B. 950-1150°C
C. 550-750°C
D. None of these
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