In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.

Heat Transfer
In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.

Thrice

Four times

Once

Twice

Thrice

Four times

Once

Twice

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

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

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

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

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

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

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 concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

None of these

Vacuum

High pressure

Backward feed

None of these

Vacuum

High pressure

Backward feed

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Heat Transfer
Heat transfer co-efficient (h1) for liquids increases with

Decreasing temperature

None of these

Increasing temperature

Decreasing Reynolds number

Decreasing temperature

None of these

Increasing temperature

Decreasing Reynolds number

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Heat Transfer
Natural convection is characterised by

Reynolds number

Prandtl number

Grashhoff number

Peclet number

Reynolds number

Prandtl number

Grashhoff number

Peclet number

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Heat Transfer
Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.

Both A & B

Prandtl & Grashoff

Grashoff

Reynolds

Both A & B

Prandtl & Grashoff

Grashoff

Reynolds

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Heat Transfer

Heat Transfer In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.

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

Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

Heat Transfer Heat transfer co-efficient (h1) for liquids increases with

Heat Transfer Natural convection is characterised by

Heat Transfer Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.

Heat Transfer
In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.

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

Heat Transfer
For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

Heat Transfer
Heat transfer co-efficient (h1) for liquids increases with

Heat Transfer
Natural convection is characterised by

Heat Transfer
Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.