Which of the following is not a continuous drier ?
Which of the following is not a continuous drier ?
A. Drum drier
B. Spray drier
C. Tunnel drier
D. Tray drier
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(NSh/NRe.NSc) is termed in mass transfer operation as the
Question: (NSh/NRe.NSc) is termed in mass transfer operation as the
[A].Stanton number [B].
Peclet number [C].
thermal diffusivity [D].
momentum diffusivity Answer: Option A
Explanation:
No answer description available for this question.
A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process ?
A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process ?A. Flow rate of inlet air
B. Relative humidity of outlet air
C. Humidity of inlet air
D. Temperature of the solidAs the reflux ratio in a distillation coloumn is increased from the minimum, the
Question: As the reflux ratio in a distillation coloumn is increased from the minimum, the
[A].slope of the operating line in stripping section decreases. [B].
number of plates decreases very slowly first and then more and more rapidly. [C].
total cost first decreases and then increases. [D].
liquid flow increases while the vapor flow decreases for a system. Answer: Option C
Explanation:
No answer description available for this question.
Agitator is provided in a crystalliser for____________________?
Agitator is provided in a crystalliser for____________________?A. Avoiding deposition on cooler surfaces
B. Formation of nuclei
C. Crystal growth
D. All A., B. and C.An ideal tower packing should not _______________________?
An ideal tower packing should not _______________________?A. Have low weight per unit volume
B. Have large surface area per unit volume
C. Have large free cross-section
D. Hold up large amount of liquid in the packingAt minimum reflux ratio for a given separation__________________?
At minimum reflux ratio for a given separation__________________?A. Number of plates is zero
B. Number of plates is infinity
C. Minimum number of the theoretical plates is required
D. Separation is most efficient