Home

What is the correct answer?

4

In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the

A. Reynold's number

B. Grashoff's number

C. Reynold's number, Grashoff's number

D. Prandtl number, Grashoff's number

Correct Answer :

D. Prandtl number, Grashoff's number


Share this question with your friends
Show all Heat & Mass Transfer MCQ

Please do not use chat terms. Example: avoid using "grt" instead of "great".

Submit
Load More..

Related Questions

In free convection heat transfer transition from laminar to turbulent… The rate of energy transferred by convection to that by conduction is… The transfer of heat by molecular collision is smallest in Sensible heat factor is given by (where S.H. = Sensible heat, and L.H.… Thermal conductivity of glass wool varies from sample to sample because… Moisture would find its way into insulation by vapour pressure unless… Heat is transferred by all three modes of transfer, viz. conduction, convection… The amount of radiation mainly depends upon the In a heat exchanger with one fluid evaporating or condensing, the surface… Two plates spaced 150 mm apart are maintained at 1000°C and 70°C.… The concept of overall coefficient of heat transfer is used in heat transfer… A grey body is one whose absorptivity Joule sec is the unit of According to Prevost theory of heat exchange Log mean temperature difference in case of counter flow compared to parallel… The rate of energy emission from unit surface area through unit solid… The value of Prandtl number for air is about Radiation is the process of heat transfer in which heat flows from a ________,… In heat transfer, conductance equals conductivity (kcal/hr/sq.m/ °C/cm)… The insulation ability of an insulator with the presence of moisture would Film coefficient is defined as Inside diameter of tube Depending on the radiating properties, a body will be opaque when A heat exchanger with heat transfer surface area A and overall heat transfer… When heat is transferred from one particle of hot body to another by actual… The thickness of thermal and hydrodynamic boundary layer is equal if Prandtl… Which of the following is a case of steady state heat transfer? The critical radius is the insulation radius at which the resistance to… Fourier's law of heat conduction gives the heat flow for The expression Q = ρ AT4 is called Thermal conductivity of a material may be defined as the

Also checkout

Thermodynamics MCQ Kidney cysts and tumors MCQ Genetics MCQ Error Detection MCQ Chemical Equilibrium MCQ Steam Boilers, Engines, Nozzles & Turbines MCQ Carboxylic Acids MCQ Indirect TAX MCQ Cell - the unit of life MCQ Permutation MCQ Drawing Inference MCQ Time and Distance MCQ