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

Heat Transfer
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

W/m

None, A is just a number

W/m.k²

W/m.k

W/m

None, A is just a number

W/m.k²

W/m.k

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Heat Transfer
The film thickness for laminar film condensation on vertical surface __________ from top to bottom.

Cummulatively increases

Cummulatively decreases

Remains constant

And the surface conductance increase

Cummulatively increases

Cummulatively decreases

Remains constant

And the surface conductance increase

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Heat Transfer
The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the

None of these

Heating volume

Heat transfer area

Nusselt number

None of these

Heating volume

Heat transfer area

Nusselt number

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Heat Transfer
For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would

Increase

Decrease

First increase and then decrease

First decrease and then increase

Increase

Decrease

First increase and then decrease

First decrease and then increase

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Heat Transfer
Steam trap is used to

Stop the supply of steam

None of these

Remove water resulting from partial condensation of steam

Condense the steam flowing in the pipeline

Stop the supply of steam

None of these

Remove water resulting from partial condensation of steam

Condense the steam flowing in the pipeline

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Heat Transfer
The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation.

Half

Is same as

Lower than

Greater than

Half

Is same as

Lower than

Greater than

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Heat Transfer

Heat Transfer 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

Heat Transfer The film thickness for laminar film condensation on vertical surface __________ from top to bottom.

Heat Transfer The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the

Heat Transfer For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would

Heat Transfer Steam trap is used to

Heat Transfer The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation.

Heat Transfer
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

Heat Transfer
The film thickness for laminar film condensation on vertical surface __________ from top to bottom.

Heat Transfer
The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the

Heat Transfer
For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would

Heat Transfer
Steam trap is used to

Heat Transfer
The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation.