A. Dense structure
B. High proportion of air space
C. High specific heat
D. None of these
A. Capacity of the evaporator is decreased
B. Capacity of the evaporator is increased
C. True temperature drop increases
D. Both B. and C.
A. Heating volume
B. Heat transfer area
C. Nusselt number
D. None of these
A. k/ρCp
B. ρCp/k
C. μCp/a
D. μ/hCp
A. Least at the inlet of the first effect
B. Least at the outlet of the last effect
C. Highest at the inlet of the last effect
D. Highest at the outlet of the last effect
A. Aluminium foil
B. Coal dust
C. Refractory bricks
D. Iron plates
A. Fourier’s law
B. Newton’s law of cooling
C. Fick’s law
D. None of these
A. Always less than h1
B. Always between h1 and h2
C. Always higher than h2
D. Dependent on metal resistance
A. Flows through the tube
B. Flows outside the tubes
C. Can flow either inside or outside the tubes
D. Should not be used as it gives very high pressure drop
A. r = 2k/h
B. r = k/h
C. r = k/2h
D. r = h/k