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Heat Transfer

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

1
4.88
1.49
None of these

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Heat Transfer
Intermittant tube cleaning is possible to be done in case of a __________ evaporator.

Basket type
None of these
Horizontal tube
Calendria

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Heat Transfer
Duhring rule is important in solving problems on

Crystallisation
Evaporation
Humidification
Distillation

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Heat Transfer
Tubes are held between top and bottom tube sheets in Calenderia type evaporator by keeping

Both the tube sheets fixed
Both the tube sheets floating
The top tube sheet floating and bottom tube sheet fixed
The top tube sheet fixed and the bottom tube-sheet floating

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Heat Transfer
In a multiple effect evaporator, the effect of boiling point elevation is to

all of the listed here
reduce the capacity
increase the economy
reduce the economy

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Heat Transfer
Calburn analogy is applicable for the value of Prandtl number from

0.5 to 5
120 to 400
0.001 to 1
0.6 to 120

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