If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.

Heat Transfer
If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.

Parabolic

Logarithmic

Hyperbolic

Linear

Parabolic

Logarithmic

Hyperbolic

Linear

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

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

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

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Heat Transfer
The Graetz number is concerned with the

absorption with chemical reaction

heat transfer in laminar flow

mass transfer between a gas and a liquid

heat transfer in turbulent flow

absorption with chemical reaction

heat transfer in laminar flow

mass transfer between a gas and a liquid

heat transfer in turbulent flow

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Heat Transfer
Indirect contact heat exchangers are preferred over direct contact heat exchangers, because

There is no risk of contamination

Heat transfer co-efficient are high

Cost of equipment is lower

There is no mist formation

There is no risk of contamination

Heat transfer co-efficient are high

Cost of equipment is lower

There is no mist formation

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Heat Transfer
The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface)

2K/h0

h0/K

K/h0

h0/2K

2K/h0

h0/K

K/h0

h0/2K

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Heat Transfer
Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by

Eddies current

Conduction

Convection

None of these

Eddies current

Conduction

Convection

None of these

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Heat Transfer

Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.

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

Heat Transfer The Graetz number is concerned with the

Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because

Heat Transfer The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface)

Heat Transfer Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by

Heat Transfer
If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.

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

Heat Transfer
The Graetz number is concerned with the

Heat Transfer
Indirect contact heat exchangers are preferred over direct contact heat exchangers, because

Heat Transfer
The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface)

Heat Transfer
Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by