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

Decreases the pressure drop

None of these

Decreases the outlet temperature of cooling medium

Increases the overall heat transfer coefficient

Decreases the pressure drop

None of these

Decreases the outlet temperature of cooling medium

Increases the overall heat transfer coefficient

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Heat Transfer
In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be

Equal to 45°C

Initially decreases and remains constant thereafter

Less than 45°C

More than 45°C

Equal to 45°C

Initially decreases and remains constant thereafter

Less than 45°C

More than 45°C

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Heat Transfer
In a forward feed multiple effect, the pressure build up will be

highest at the inlet of the last effect

least at the inlet of the first effect

highest at the outlet of the last effect

least at the outlet of the last effect

highest at the inlet of the last effect

least at the inlet of the first effect

highest at the outlet of the last effect

least at the outlet of the last effect

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Heat Transfer
Choose the correct equation.

Nu = (Re) (Pr) (Gz)

Nu = (Re) (Pr) (St)

Nu = (Re)(Pr)

Nu = (Pr)(St)

Nu = (Re) (Pr) (Gz)

Nu = (Re) (Pr) (St)

Nu = (Re)(Pr)

Nu = (Pr)(St)

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Heat Transfer
For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are

Linearly related

Different

Same

Never different

Linearly related

Different

Same

Never different

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Heat Transfer
In an extended surface heat exchanger, fluid having lower co-efficient

Should not be used as it gives very high pressure drop

Flows through the tube

Can flow either inside or outside the tubes

Flows outside the tubes

Should not be used as it gives very high pressure drop

Flows through the tube

Can flow either inside or outside the tubes

Flows outside the tubes

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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 In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be

Heat Transfer In a forward feed multiple effect, the pressure build up will be

Heat Transfer Choose the correct equation.

Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are

Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient

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
In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be

Heat Transfer
In a forward feed multiple effect, the pressure build up will be

Heat Transfer
Choose the correct equation.

Heat Transfer
For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are

Heat Transfer
In an extended surface heat exchanger, fluid having lower co-efficient