SSC-JE ME || Heat Transfer Quiz - 1

Lorentz number is ___________.

Temperature variation in the below composite wall is shown in the figure. Find the correct option __________?

What is the specific name of the equation governing three- dimensional steady state heat conduction with self-heat generation __________?

It is proposed to coat 2mm diameter wire with enamel paint to increase heat transfer with air. If the air side heat transfer coefficient is ,Then what will be the optimum thickness of enamel Paint?

Fourier's equation of general conduction heat transfer applies to the case of-

Conductivity of pure metal is always____.

The temperature distribution associated with radial conduction through a sphere is represented by

A heat flux of 10⁵ w/m² is supplied to one side of slab of 60mm thickness & having conductivity Whereas, 2^nd face of the slab is exposed to surroundings having Temperature 27°C & heat transfer coefficient Then what will be the Temp of 1^st face of wall in K.