Related Questions

Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is
A [

A. Thin walled having the value of Ao Ai/

B. Thick walled

B Having the value of Ao/Ai > 2
C Both B and C
In case of heat transfer by conduction in a hollow cylinder, __________ mean area is used to calculate the heat transfer rate.
A Geometric
B Arithmetic
C Logarithmic
D Either A, B or C
The height of a cylinder is four times the radius of the cylinder. If the volume of the cylinder is 256 cm², what is the radius of the cylinder.
A 4 cm
B 8 cm
C 16 cm
D 24 cm
In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.
A Equal to
B Less than
C More than
D None of these
In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is
A Linear
B Hyperbolic
C Parabolic
D None of these
Fourier's law of heat conduction gives the heat flow for
A Irregular surfaces
B Nonuniform temperature surfaces
C One dimensional cases only
D Two dimensional cases only
The area of the base of a cylinder is 100πm2. The volume of the cylinder is 900πm3. What is the height of the cylinder?
A 9m
B 10m
C 11m
D 12m
The area of the base of a cylinder is 100πm2. The volume of the cylinder is 900πm2. What is the height of the cylinder?
A 9m
B 10m
C 11m
D 12m
The amount of heat flow through a body by conduction is
A Directly proportional to the surface area of the body
B Directly proportional to the temperature difference on the two faces of the body
C Dependent upon the material of the body
D All of the above
The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the
A Length is shorter
B Throat diameter is more
C Sudden expansion of flow in the downstream occurs
D Distance between the throat and the inlet is more

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