- Dittus-Boeltier equation
- Sieder-Tate equation
- Nusselt equation
- None of these
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Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of?
Answer: Option 4 Let'
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Computer accounts and user accounts in your domain have been seperated into OUs for administrative purpose. You want to require strong passwords for the local user accounts only. What should you do?
Answer: Option 1 Let'
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Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)?
Answer: Option 1 Fourier's law of heat conduction is k. A. (dT/dx) where Q = Amount of heat flow through the body in unit time, A = Surface area of heat...
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The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)?
Answer: Option 4 Let'
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In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, Vg = velocity gradient ).?
Answer: Option 4 Let'
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Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface)?
Answer: Option 2 Let'
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Which of the following liquids is most viscous?
Answer: Option 1 Here oil is the most viscous liquid.
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Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer.?
Answer: Option 3 Let'
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Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator?
Answer: Option 3 Let'
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Which of the following is unimportant in forced convection?
Answer: Option 3 Let'
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