Related Questions

Hardgrove grindability index of four coal samples are given below. Which of them is the easiest to grind?
A 50
B 70
C 85
D 100
Thermal conductivity of a material does not depend upon its
A Mass
B Volume
C Surface area
D All of the above
Cold crushing strength of a refractory does not depend upon its
A Shape
B Composition
C Firing temperature
D Texture
If there are no externally induced flow velocities, then the Nusselt Number (Nu) does not depend upon
A Prandtl number
B Reynolds number
C Grashof Number
D none of the
When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon
A Resistance of the coil
B Motion of the magnet
C Number of turns of the coil
D Pole strength of the magnet
The total frictional resistance to fluid flow does not depend upon the
A Roughness of the surface
B Fluid pressure
C Fluid density
D Fluid velocity
Drag force acting on a body does not depend upon the
A Density of the fluid
B Density of the body
C Velocity of the body
D Projected area of the body
Pressure drag does not depend upon the
A Roughness of surface of the body
B Pressure of main flow only
C Length of the body in flow direction
D All of the above
Radiation heat transfer rates does not depend upon the
A Type of absorbing surface
B Distance between the heat source and the object receiving the heat
C Surface area and temperature of the heat source
D None of these
The rate of emission of radiation by a body does not depend upon the
A Wavelength of radiation
B Surface temperature of the body
C Nature of the surface
D Shape and porosity of the body

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