The rate of emission of radiation by a body does not depend upon the

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

A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the

A

Global warming

B

Green house

C

Atmospheric effect

D

Ionosphere

β-rays emission in radioactive disintegration is always accompanied by the emission of

A

γ-rays

B

α-rays

C

Neutrons

D

None of these

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

The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)

A

$$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$

B

$$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$

C

$$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$

D

$$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$

Filtration rate does not depend upon the

A

Pressure drop & area of filtering surface

B

Resistance of the cake & the septum

C

Properties of the cake & the filtrate

D

None of these

Heat transfer rate to the stock/charge in the furnace does not depend upon the

A

Emissivity of the refactory walls

B

Size of the furance

C

Use of waste heat recovery equipments

D

Thickness of the stock

Heat transfer rate to the charge/stock in a furnace does not depend upon the

A

Type of fuels viz solid, liquid or gaseous

B

Flue gas temperature

C

Emissivity of refractory walls

D

Initial temperature of the charged stock

Rate of crystallisation does not depend upon the

A

Extent of supersaturation

B

Turbulence within the solution

C

Number and active surface area of the crystals

D

None of these

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

The rate of emission of radiation by a body does not depend upon the

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