1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C.

Heat Transfer
1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C.

1.49

4.88

1

None of these

1.49

4.88

1

None of these

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Heat Transfer
The units of resistance to heat transfer is

J.m⁻².K⁻¹

J.m⁻¹.K⁻¹

W⁻¹m²K

W.m⁻².K⁻¹

J.m⁻².K⁻¹

J.m⁻¹.K⁻¹

W⁻¹m²K

W.m⁻².K⁻¹

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Heat Transfer
For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy

d²T/dZ² < 0

d²T/dZ² = 0

dT/dZ = 0

d²T/dZ² > 0

d²T/dZ² < 0

d²T/dZ² = 0

dT/dZ = 0

d²T/dZ² > 0

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Heat Transfer
In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head

four times

none of the listed here

twice

square root of

four times

none of the listed here

twice

square root of

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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

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

All of these

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

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

All of these

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Heat Transfer
In a heat exchanger, one transfer unit means

The size of the exchanger in which heat transfer rate is 1 kcal/hr

None of these

A section of the exchanger in which change in temperature of one stream equals the average driving force in the section

Both A and B

The size of the exchanger in which heat transfer rate is 1 kcal/hr

None of these

A section of the exchanger in which change in temperature of one stream equals the average driving force in the section

Both A and B

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Heat Transfer

Heat Transfer 1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C.

Heat Transfer The units of resistance to heat transfer is

Heat Transfer For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy

Heat Transfer In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head

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

Heat Transfer In a heat exchanger, one transfer unit means

Heat Transfer
1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C.

Heat Transfer
The units of resistance to heat transfer is

Heat Transfer
For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy

Heat Transfer
In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head

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

Heat Transfer
In a heat exchanger, one transfer unit means