ISRO Scientist or Engineer Mechanical 2008

A 10 kg solid at $$100^\circ C$$ with a specific heat, of 0.8kJ/kg. $$^\circ C$$ is immersed in 40 kg of $$20^\circ C$$ liquid with a specific heat of 4.0 kJ/kg $$^\circ C$$. Estimate the temperature after a long time if the container is insulated?

A spherical shaped vessel of 1.4 m outer diameter is 90 mm thick. Find the rate of heat leakage, if the temperature difference between the inner and outer surfaces is $$220^\circ C$$. Thermal conductivity of the material of the sphere is 0.083 W/m K.

$$\left(\frac{\partial p}{\partial V}\right)_T \left(\frac{\partial v}{\partial T}\right)_p \left(\frac{\partial T}{\partial p}\right)_v$$ is equal to

A well insulated vessel containing air is heated to double the pressure and temperature 150% in excess of initial. The amount of air that leaked is

An unconstraint thin circular disc has a concentric hole in it. On heating the diameter of the hole will

The specific heat of diatomic gas at constant pressure is given by (R = universal gas constant and M = molecular weight of gas)

The variation of temperature inside a wall is shown by three different curves. In which case thermal conductivity least varies with temperature

Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to

Which type of heat exchanger an automobile radiator is?

Given that Nu = Nusselt number, Re = Reynoids number, Pr = Prandtl number, Sh = Sherwood number, Sc = Schmidt number and Gr = Grashoff number. The functional relationship for free convective heat transfer is given as,