Evaporation of 1kg of water from a solution in a single effect evaporator requires about ________________ kg of steam?
A. 0.4 – 0.6
B. 1-1.3
C. 1.8-2
D. 2 – 2.4
A. 0.4 – 0.6
B. 1-1.3
C. 1.8-2
D. 2 – 2.4
A. Increases
B. Decreases
C. Remains unchanged
D. May increase or decrease; depends on the liquid
Thermal conductivities of most of the liquids _______________ with rise in temperature? Read More »
Chemical Heat Transfer A. Create vacuum
B. Regulate the vapor flow
C. Vent the non-condensable gases
D. Arrest the entrained liquid
A. Super
B. Sensible
C. Latent
D. Both B. & C.
A. Q ∝ T2
B. Q ∝ T4
C. Q ∝ T3
D. None of these
A. Aluminium foil
B. Refractory bricks
C. Iron plate
D. Coke breeze
A. Exothermic
B. Mildly endothermic
C. Highly endothermic
D. None of these
Crystallisation of solids from a homogeneous solution is a/an ______________ process? Read More »
Chemical Heat Transfer A. Hardness
B. Dissolved solids content
C. Suspended solids content
D. All A., B. and C.
A. Black
B. Yellow
C. White
D. Grey
_______________ paint has the maximum absorption coefficient ? Read More »
Chemical Heat Transfer A. Fouling factor
B. Heat transfer area
C. Heat transfer co-efficient
D. Heat transfer rate
Baffles are provided in heat exchangers to increase the________________? Read More »
Chemical Heat Transfer