Related Questions

Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.
A Schmidt
B Sherwood
C Peclet
D Stanton
The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is
A Nusselt number
B Sherwood number
C Schmidt number
D Stanton number
Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer.
A Grashoff
B Biot
C Stantan
D Reynolds
Nusselt number (for forced convection heat transfer) is a function of the __________ number.
A Prandtl
B Reynolds
C Both A & B
D Neither A nor B
You are the network administrator for your company. Mike Nash is a member of the Administration group, and Nate Sun is a member of the Intern group. Both groups are in the same domain. On the intranet server, the Administration group is placed in the Security group, and the Intern group is placed in the Nonsecurity group. The Security group is then granted Full Control permission for the Sales virtual directory. Nate needs to update new sales information that is located on the Sales virtual directory. What should you do so that Nate can perform this task?
A Enable Anonymous access for the intranet server
B Enable Anonymous access for the Sales virtual directory
C Remove Nate fmm the Intern group
D Make Nate a member of the Security group
E None of above
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
A scaling factor
B forming factor
C resisting factor
D fouling factor
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
In free convection heat transfer, Nusselt number is function of
A Grashoff number and Reynold number
B Grashoff number and Prandtl number
C Prandtl number and Reynold number
D Grashoff number, Prandtl number and Reynold number
The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are
A Re.Gz
B Nu, Pr
C Nu, Pr, Re
D Nu, Gz
The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is
A 2.36
B 4.36
C 120.36
D Dependent on NRe only

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