What is the unit of thermal conductivity ?

Heat Transfer
What is the unit of thermal conductivity ?

Kcal/hr. °C

Kcal/hr.m

Kcal/hr. m² °C

Kcal/hr.m.°C

Kcal/hr. °C

Kcal/hr.m

Kcal/hr. m² °C

Kcal/hr.m.°C

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Heat Transfer
Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low

All of these

Hardness

Suspended solids content

Dissolved soilds content

All of these

Hardness

Suspended solids content

Dissolved soilds content

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Heat Transfer
For specified tube outside diameter, higher BWG means higher

weight per unit length

cross-sectional area

none of the listed here

tube thickness

weight per unit length

cross-sectional area

none of the listed here

tube thickness

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Heat Transfer
In a gas-liquid shell and tube heat exchanger, the

Presence of a non-condensible gas decreases the condensing film co-efficient

Gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature

All of these

Gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes

Presence of a non-condensible gas decreases the condensing film co-efficient

Gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature

All of these

Gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes

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Heat Transfer
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)

NPr-1/3

NPr-1

NPr

NPr1/3

NPr-1/3

NPr-1

NPr

NPr1/3

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Heat Transfer
Fouling factor

Is a dimensionless quantity

None of these

Does not provide a safety factor for design

Accounts for additional resistances to heat flow

Is a dimensionless quantity

None of these

Does not provide a safety factor for design

Accounts for additional resistances to heat flow

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Heat Transfer

Heat Transfer What is the unit of thermal conductivity ?

Heat Transfer Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low

Heat Transfer For specified tube outside diameter, higher BWG means higher

Heat Transfer In a gas-liquid shell and tube heat exchanger, the

Heat Transfer 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)

Heat Transfer Fouling factor

Heat Transfer
What is the unit of thermal conductivity ?

Heat Transfer
Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low

Heat Transfer
For specified tube outside diameter, higher BWG means higher

Heat Transfer
In a gas-liquid shell and tube heat exchanger, the

Heat Transfer
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)

Heat Transfer
Fouling factor