Related Questions

Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant
A Humidity
B Velocity
C Temperature
D All of the above
The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.
A 0
B 100
C 50
D None of these
Moisture contained by a substance in excess of the equilibrium moisture is called the __________ moisture.
A Unbound
B Free
C Critical
D Bound
Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the __________ moisture.
A Unbound
B Critical
C Free
D Bound
The vapour pressure exerted by the moisture contained in a wet solid depends upon the
A Nature of the moisture
B Temperature
C Nature of the solid
D All of the above
If moisture content of solid on dry basis is X, then the same on wet basis is
A $$\frac{{\text{X}}}{{{\text{X}} + 1}}$$
B $$\frac{{\text{X}}}{{{\text{X}} - 1}}$$
C $$\frac{{{\text{X}} + 1}}{{\text{X}}}$$
D $$\frac{{{\text{X}} - 1}}{{\text{X}}}$$
Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as
A Additives
B Antagonism
C Synergism
D Independent
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
All moisture in a non-hygroscopic material is the __________ moisture.
A Free
B Equilibrium
C Unbound
D Bound
In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres.
A Viscose rayon
B Acrylic
C Polyvinyl acetate
D Saturated polyester

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