Kg of liquid evaporated per hour in an evaporator is defined as its

Heat Transfer
Kg of liquid evaporated per hour in an evaporator is defined as its

None of these

Steam load

Capacity

Economy

None of these

Steam load

Capacity

Economy

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Heat Transfer
The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by

Painting the surface black

Giving the surface a mirror finish

Painting the surface white (with aluminium paint)

Roughening the surface

Painting the surface black

Giving the surface a mirror finish

Painting the surface white (with aluminium paint)

Roughening the surface

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Heat Transfer
When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids?

At high fluid velocity

At low velocity

When fluid flows past a smooth surface

None of these

At high fluid velocity

At low velocity

When fluid flows past a smooth surface

None of these

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

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

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

All of these

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

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

All of these

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

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Heat Transfer
Heat flux, as defined in heat flow is analogous to __________ in electricity flow.

Current

Voltage

None of these

Resistance

Current

Voltage

None of these

Resistance

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Heat Transfer
If Prandtl number is greater than the Schmidt number, then the

thermal boundary layer lies inside the concentration boundary layer

none of the listed here

thermal & concentration boundary layers are of equal thickness

concentration boundary layer lies inside the thermal boundary layer

thermal boundary layer lies inside the concentration boundary layer

none of the listed here

thermal & concentration boundary layers are of equal thickness

concentration boundary layer lies inside the thermal boundary layer

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Heat Transfer

Heat Transfer Kg of liquid evaporated per hour in an evaporator is defined as its

Heat Transfer The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by

Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids?

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

Heat Transfer Heat flux, as defined in heat flow is analogous to __________ in electricity flow.

Heat Transfer If Prandtl number is greater than the Schmidt number, then the

Heat Transfer
Kg of liquid evaporated per hour in an evaporator is defined as its

Heat Transfer
The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by

Heat Transfer
When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids?

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

Heat Transfer
Heat flux, as defined in heat flow is analogous to __________ in electricity flow.

Heat Transfer
If Prandtl number is greater than the Schmidt number, then the