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Heat Transfer

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

4.88
1.49
None of these
1

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Heat Transfer
The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by

Transient conduction
Steady state conduction
Forced convection
Natural convection

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Heat Transfer
In a parallel flow heat exchanger, if the outlet temperature of hot and cold fluids are the same, then the log mean temperature difference (LMTD) is

Minimum
Maximum
Infinity
Zero

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Heat Transfer
Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is

IR2
None of the listed here
IR
I2R

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Heat Transfer
__________ chart is known as transient heat conduction chart.

Mollier's
Heisler's
Cox
Dirhing's

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

Capacity
Economy
Steam load
None of these

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