Use of natural draft cooling tower is practised, when the air has low ?
A. Humidity
B. Temperature
C. Both A. & B.
D. Neither A. nor B.
Month: February 2019
Molecular diffusivity of a liquid__________________?
Molecular diffusivity of a liquid__________________?
A. Increases with temperature
B. Decreases with temperature
C. May increase or decrease with temperature
D. Is independent of temperature
At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is ________________ percent.?
At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is ________________ percent.?
A. 100
B. 0
C. 50
D. Between 0 and 100
All moisture in a non-hygroscopic material is the ________________ moisture?
All moisture in a non-hygroscopic material is the ________________ moisture?
A. Free
B. Equilibrium
C. Unbound
D. Bound
The value of NA/(NA + NB) for steady state molecular diffusion of gas ‘A’ through nondiffusing gas ‘B’ is____________________?
The value of NA/(NA + NB) for steady state molecular diffusion of gas ‘A’ through nondiffusing gas ‘B’ is____________________?
A. 1
B. ∞
C. 0.5
D. 2
Molecular distillation is_____________________?
Molecular distillation is_____________________?
A. High temperature distillation
B. For heat-sensitive materials
C. Very low pressure distillation
D. Both B. and C.
The most efficient cooling tower out of the following is_____________________?
The most efficient cooling tower out of the following is_____________________?
A. Induced draft
B. Forced draft
C. Natural draft
D. Atmospheric
The main reason for dividing a tall packed tower into series of small towers is to________________________?
The main reason for dividing a tall packed tower into series of small towers is to________________________?
A. Minimise the overall pressure drop
B. Avoid flooding
C. Reduce liquid hold up
D. Avoid channelling
Acetic acid will be most economically separated from a dilute solution of acetic acid in water by____________________?
Acetic acid will be most economically separated from a dilute solution of acetic acid in water by____________________?
A. Solvent extraction
B. Continuous distillation
C. Evaporation
D. Absorption
Which of the following is not a batch drier ?
Which of the following is not a batch drier ?
A. Truck drier
B. Agitated pan drier
C. Fluidised bed drier
D. Vacuum shelf drier