For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Heat Transfer
For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Increases the overall heat transfer coefficient

Decreases the outlet temperature of cooling medium

None of these

Decreases the pressure drop

Increases the overall heat transfer coefficient

Decreases the outlet temperature of cooling medium

None of these

Decreases the pressure drop

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Heat Transfer
jH factor for heat transfer depends upon the __________ number.

Prandtl

Biot

Nusselt

Reynolds

Prandtl

Biot

Nusselt

Reynolds

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Heat Transfer
In thermal radiation for a black body (where, ε is emissivity and α is absorptivity)

α = 1; ε ≠ 1

α = 1; ε = 1

α ≠ 1, ε = 1

α ≠ 1, ε ≠ 1

α = 1; ε ≠ 1

α = 1; ε = 1

α ≠ 1, ε = 1

α ≠ 1, ε ≠ 1

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Heat Transfer
When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling.

none of the listed here

film

transition

pool

none of the listed here

film

transition

pool

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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 tempeature follows __________ law.

Linear

Hyperbolic

Logarithmic

Parabolic

Linear

Hyperbolic

Logarithmic

Parabolic

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Heat Transfer
While the total emissivity of a perfect black body is unity, the same for a real body is

>1

0

1

between 0 and 1

>1

0

1

between 0 and 1

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Heat Transfer

Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Heat Transfer jH factor for heat transfer depends upon the __________ number.

Heat Transfer In thermal radiation for a black body (where, ε is emissivity and α is absorptivity)

Heat Transfer When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling.

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 tempeature follows __________ law.

Heat Transfer While the total emissivity of a perfect black body is unity, the same for a real body is

Heat Transfer
For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Heat Transfer
jH factor for heat transfer depends upon the __________ number.

Heat Transfer
In thermal radiation for a black body (where, ε is emissivity and α is absorptivity)

Heat Transfer
When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling.

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 tempeature follows __________ law.

Heat Transfer
While the total emissivity of a perfect black body is unity, the same for a real body is