The unit of thermal conductivity in S.I. units is
A.W/m-hr-?K
B.W/m-hr?C
C.W/m?K
D.KJ/m-hr?C
E.KJ/m-hr-?K
A.W/m-hr-?K
B.W/m-hr?C
C.W/m?K
D.KJ/m-hr?C
E.KJ/m-hr-?K
A.Platinum resistance thermometer
B.Thermo electric thermometer
C.Constant volume hydrogen thermometer
D.Constant volume nitrogen thermometer
E.Optical pyrometer
A.Flame heating
B.Resistance heating
C.Dielectric heating
D.Radiation heating
E.Any of the above
A.Rough surfaces are better radiators than smooth surfaces
B.Highly polished mirror like surfaces are very good radiators
C.Black surfaces are better absorbers than white ones
D.Black surfaces are better radiators than white ones
A.Prandlt number
B.Nusselt number
C.Crash off number
D.Mach number
A.D’ lambert’s rule
B.Wein’s displacement law
C.Stefan-Bolzmann’s law
D.Kirchhoff’s law
E.Planck’s law
A.Logarithmic mean radius
B.Mean area of heat transfer
C.The rate of heat transfer
D.None of the above
A.steam
B.condensed wate
C.circulating
D.All of the above
A.High carbon steel (0.83% C)
B.Low nickel steel (1.37% Ni)
C.Low chromium steel (0.46% Cr)
D.High chromium steel (0.26% Cr)
E.Chromium nickel steel (9% Ni, 18% Cr)