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MCQs: What is the formula for the thermal resistance (R) of a hollow cylinder of internal radius Ri, outer radius Ro and the length l ? Thermal conductivity of the cylinder material is k. The heat flows from inner side to outer side.
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: A hollow cylinder of length of 1m, inner radius (Ri) 0.01m and outer radius (Ro) 0.05m has a thermal conductivity (k) 20 W/mK. The inside surface temperature is at 500K. What is the outside surface temperature of the cylinder when the rate of radial heat transfer is 3.13 kW?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: As the radius increases in hollow cylinder the temperature
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MCQs: What is the effect of change in outer radius of the hollow cylinder on the thermal resistance of conduction?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: What is the effect of change in outer radius of the hollow cylinder on the thermal resistance of convection?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Consider a plane wall of area A, having a layer of insulation on it. What will happen to the thermal resistance for convection of wall if the thickness of the insulation is increased?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Which of the following assumptions is/are correct to obtain an analytical solution for the problem on laminar boundary layer of fluid on flat plate?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Change in momentum is
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Assume a turbulent flow of a fluid on a flat plate. A very thin region near the plate surface is called as
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MCQs: The layer above the laminar sublayer with some turbulence and still having importance of viscous action is called as
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: The layer through which the momentum and energy transfer take place via the movement of macroscopic lumps of matter from one region to another is called as
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: What is used instead of ν, in turbulent boundary layer condition?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: The eddy properties are used in turbulent boundary layer condition because
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Generally, natural convection occurs due to
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MCQs: The rate of radiant flux between two black bodies is analogous to
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MCQs: How does the gray body differ from the black body?
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MCQs: How are the real bodies in terms of diffuseness?
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MCQs: For the diffuse surfaces
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MCQs: What is the relation between absorptivity (α), reflectivity (ρ) and transmissivity (τ) for gray body?
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MCQs: What is irradiation (G)?
Category: Mechanical Engineering Questions, Published by: teswesm
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