The value of Stefan-Boltzmann constant in SI unit is_________________?

Related Mcqs:

The non-dimensional temperature gradient in a liquid at the wall of a pipe is the ____________________?

A. Heat flux B. Nusselt number C. Prandtl number D. Schmidt number...

Which of the following has the lowest overall heat transfer co-efficient ?

A. Dowtherm B. Molten sodium C. Water D. Air...

Pick out the correct equation ?

A. jH = (St)(Pr)2/3 = f/2 B. jH = (St)(Pr)1/3 = f/2 C. jH = (St)2/3(Pr) = f/2 D. jH = (St)1/3(Pr) = f/2...

Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer cannot take place____________________?

A. Between two bodies in physical contact with each other B. Between two bodies not in physical contact with each other C. From one part of a body to the another part of the same body D. Both B & C...

Pick out the wrong statement ?

A. With change in temperature, the radiant energy emitted by a black body remains unchanged B. Absorptivity of a body approaches unity in case of diffuse reflection C. Absorptivity of a perfectly black body is unity D. Value of Stefan-Boltzmann constant is 4.876 × 10-8 KCal/m2.hr.°K4...