Related Questions

The film penetration model of mass transfer was enunciated by
A Gilliland
B Toor and Marchello
C Stefan
D Fick
Penetration model (theory) for mass transfer was enunciated by
A Danckwerts
B Toor and Marchello
C Higbie
D Kissinevskii
Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the
A Surrounding temperature
B Average temperature of the fin
C Temperature of the fin end
D Constant temperature equal to that of the base
As per IRDA regulations issued, what is the grace period allowed beyond the expiry date of a policy for renewal?
A 10 days
B 30 days
C 45 days
D 60 days
What is the grace period allowed by the Regulator for renewal in health insurance policy?
A 60 days
B 45 days
C 30 days
D 15 days only
Who enunciated the laws of planetary motion?
A Nicolaus Copernicus
B Johannes Kepler
C Isaac Newton
D Galileo
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)
A D
B D2
C D0.5
D $$\frac{1}{{\text{D}}}$$
Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.
A CO2
B SO2
C NH3
D None of these
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is
A Calculated
B Unknown
C Known
D Not required
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called
A Humidity ratio
B Relative humidity
C Absolute humidity
D Degree of saturation

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