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

Decreases the pressure drop

None of these

Increases the overall heat transfer coefficient

Decreases the outlet temperature of cooling medium

Decreases the pressure drop

None of these

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Heat Transfer
Air is best heated with steam in a heat exchanger of

double pipe type with fin on air side

plate type

double pipe type with fin on steam side

shell and tube type

double pipe type with fin on air side

plate type

double pipe type with fin on steam side

shell and tube type

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Heat Transfer
A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ?

Plate

Sphere

Cube

All of these

Plate

Sphere

Cube

All of these

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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)

h0/2K

2K/h0

h0/K

K/h0

h0/2K

2K/h0

h0/K

K/h0

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Heat Transfer
Vent pipes are provided in a condenser to

None of these

Purge the condenser

Remove non-condensable gases

Facilitate easy cleaning of tubes

None of these

Purge the condenser

Remove non-condensable gases

Facilitate easy cleaning of tubes

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Heat Transfer
Planck's distribution law is valid for __________ bodies

black

white

coloured

all of the listed here

black

white

coloured

all of the listed here

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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 Air is best heated with steam in a heat exchanger of

Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ?

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 Vent pipes are provided in a condenser to

Heat Transfer Planck's distribution law is valid for __________ bodies

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
Air is best heated with steam in a heat exchanger of

Heat Transfer
A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ?

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
Vent pipes are provided in a condenser to

Heat Transfer
Planck's distribution law is valid for __________ bodies