Bissoy.com
Doctors Medicines MCQs Q&A

Related Questions

Which one of them is a correct combination? 1) Boundary Lubrication i) Dimensionless film thickness < 1 2) Hydrodynamic Lubrication ii) Dimensionless film thickness lies between 1 and 3 3) Mixed Lubrication iii) Dimensionless film thickness lies between 3 and 5 4) Elastohydrodynamic Lubrication iv) Dimensionless film thickness is greater than 5
Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number.
What is the monoisotopic and average mass of valine? Given data: Mass of the most abundant isotope of Carbon (C°)=12.0000, Mass of most abundant isotope of Hydrogen (H°)=1.0078, Mass of most abundant isotope of Oxygen (O°)=15.9949, Mass of most abundant isotope of Nitrogen (N°)=14.0031, The average mass of Carbon (C)=12.011, The average mass of Hydrogen (H)=1.008, The average mass of Oxygen (O)=15.999, The average mass of Nitrogen (N)=14.007.
Consider the following standard symbols for two-port parameters: 1. h12 and h21 are dimensionless 2. h11 and B have dimension of ohms 3. BC is dimensionless 4. C is dimensionless Which of the above are correct?
A stream of air at 100 kPa pressure and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6 * 10 –6 m2/sec Kinematic viscosity of air = 1.5 * 10 –5 m2.sc Concentration of naphthalene at the air-solid naphthalene interface = 1 * 10 – 5 kmol/m3 Calculate the overage mass transfer coefficient over the flat plate. Note: For heat transfer over a flat plate, convective heat transfer coefficient for laminar flow can be calculated by the equation. Nu = 0.664 ReL1/2 Pr1/3 you may use analogy between mass and heat transfer.
A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as
A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as
The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as
Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.
For the free convection circumstances, the following dimensionless numbers apply (i) Grashof number (ii) Prandtl number (iii) Nusselt number Identify the correct answer