A. J/m2 sec
B. J/m °K sec
C. W/m °K
D. A. and C. above
E. B. and C. above
A. conduction
B. convection
C. radiation
D. conduction and convection
E. convection and radiation
Pick up the wrong case?
A. face area
B. time
C. thickness
D. temperature difference
E. thermal conductivity
A. blast furnace
B. heating of building
C. cooling of parts in furnace
D. heat received by a person from fireplace
E. all of the above
A. I.C. engine
B. air preheaters
C. heating of building in winter
D. all of the above
E. none of the above
A. increases
B. decreases
C. remains constant
D. may increase or decrease depending on temperature
E. none of the above
A. thermometer
B. radiatiouv pyrometer
C. thermistor
D. thermocouple
E. thermopile
A. their atoms collide frequently
B. their atoms-are relatively far apart
C. they contain free electrons
D. they have high density
E. all of the above
A. free electrons
B. atoms colliding frequency
C. low density
D. porous body
E. all of the above