Heat Transfer

A. same
B. higher
C. more or less same
D. very much lower
E. very much higher

A. Wien’s law
B. Planck’s law
C. Stefan’s law
D. Fourier’s law
E. Kirchhoff’s law

A. kcal/m2
B. kcal/hr °C
C. kcal/m2 hr °C
D. kacl/m hr °C
E. kcal/m3 hr °C

A. reflected
B. refracted
C. transmitted
D. absorbed
E. partly reflected and partly absorbed

A. grey body
B. brilliant white polished body
C. red hot body
D. black body
E. none of the above

A. universal gas constant
B. kinematic viscosity
C. thermal conductivity
D. Planck’s constant
E. none of the above

A. conduction
B. convection
C. radiation
D. conduction and convection
E. convection and radiation

A. both the fluids at inlet (of heat ex¬changer where hot fluid enters) are in their coldest state
B. both the fluids at inlet are in their hot¬test state
C. both the fluids .at exit are in their hottest state
D. one fluid is in hottest state and other in coldest state at inlet
E. any combination is possible depending on design of heat exchanger

A. one dimensional cases only
B. two dimensional cases only
C. three dimensional cases only
D. regular surfaces having non-uniform temperature gradients
E. irregular surfaces

A. higher
B. lower
C. same
D. depends on the area of heat exchanger
E. depends on temperature conditions