Related Questions

The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation.
A Greater than
B Lower than
C Is same as
D Half
Dropwise condensation is promoted on a/an __________ surface.
A Glazed
B Oily
C Coated
D Smooth
The most conducive surface for dropwise condensation to occur is the __________ surface.
A Coated
B Oily
C Glazed & polished
D Smooth
Dropwise condensation of steam on cooling surface is promoted
A An oily surface
B When both the steam and the tube are clean
C Only in presence of air
D None of these
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
A Terylene
B Polybutadiene
C PVC
D Polypropylene
Condensation is a process which occurs when
A Temperature falls below 0°C
B Absolute humidity becomes equal to relative humidity
C Temperature in the air parcel remains static
D Relative humidity becomes 100% and more
Condensation occurs when
A The air is cold
B The air is warm
C The air is saturated
D None of the above
The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )
A $$\sqrt {\text{T}} $$
B T
C T1.5
D T3
Condensation polymerisation of __________ produces bakelite.
A Propylene
B Phenol & formaldehyde
C Phenol & acetaldehyde
D Urea & formaldehyde
Film condensation is promoted on a/an __________ surface.
A Oily
B Coated
C Clean & smooth
D Dirty

Next steps