Bissoy.com
Login
Doctors
Medicines
MCQs
Q&A
Ask
Merit Test
Questions
Courses
Conductance is given by(where, x = thickness, A = heat flow area, K = thermal conductivity.)?
X/KA
KA/x
K/Ax
A/Kx
LohaHridoy
0
Edit
4
views
2025-01-04 04:42
1
Answers
AhmedNazir
Answer: Option 2
Let'
0
Thanks
4
views
Answered
2022-09-01 13:21
Report
Edit
Call
Related Questions
A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when?
1 Answers
9
Views
The heat transfer by conduction through a thick cylinder (Q) is given by (where T₁ = Higher temperature, T₂ = Lower temperature, r₁ = Inside radius, r₂ = Outside radius, l = Length of cylinder, and k = Thermal conductivity)?
1 Answers
5
Views
Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ρ = Density of substance, S = Specific heat, and k = Thermal conductivity)?
1 Answers
6
Views
Reynolds number (RN) is given by (where h = Film coefficient, l = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, ρ = Density of fluid, cp = Specific heat at constant pressure, and μ = Coefficient of absolute viscosity)?
1 Answers
20
Views
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)?
1 Answers
4
Views
Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)?
1 Answers
5
Views
Resistance to heat flow by conduction is proportional to (where, t & ρ are thickness & density of the material respectively and A = area normal to the direction of heat flow. )?
1 Answers
5
Views
For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number)?
1 Answers
8
Views
The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K₀ + at. where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be?
1 Answers
5
Views
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?
1 Answers
5
Views
কোরআন
হাদিস
চাকুরি প্রস্তুতি
বিশ্ববিদ্যালয় ভর্তি
মেডিকেল SBA
12
এইচএসসি
10
এসএসসি
8
জেএসসি
এক্সাম দিয়ে মেধা যাচাই করুন
Job Preparation (1125)
Admission (754)
এসএসসি (10)
এইচএসসি (5)
Login Required
You need to log in to continue.
Login
Cancel
Download Required
You need to download the app to make a call.
Download
Cancel