Heat Transfer Questions

Q.  Heat is transferred by all three modes of transfer, viz, conduction, convection and radiation in _________________?

a. electric heater
b. steam condenser
c. melting of ice
d. refrigerator condenser coils
e. boiler


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No explanation is available for this question!
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MCQs:  A non-dimensional number generally associated with natural convection heat transfer is________________?
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MCQs:  In heat exchangers, degree of approach is defined as the difference between temperatures of________________?
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MCQs:  A steam pipe is to be insulated by two insulating materials put over each other . For best results__________________?
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MCQs:  According of Kirchhoff’s law______________________?
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MCQs:  LMTD in case of counter flow heat exchanger as compared-to parallel flow heat exchanger is _________________?
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MCQs:  Fourier’s law of heat conduction is valid for_________________?
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MCQs:  In counter flow heat exchangers_________________?
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MCQs:  The concept of overall coefficient of heat transfer is used in case of heat transfer by________________?
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MCQs:  Joule sec is the unit of_________________?
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MCQs:  According to Kirchoff’s law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a _________________?
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MCQs:  All radiations in a black body are___________________?
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MCQs:  The unit of overall coefficient of heat transfer is___________________?
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MCQs:  The value of the wavelength for maximum emissive power is given by ___________________?
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MCQs:  Total emissivity of polished silver compared to black body is___________________?
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MCQs:  The value of Prandtl number for air is about _______________________?
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MCQs:  The energy distribution of an ideal reflector at higher temperatures is largely in the range of ___________________?
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MCQs:  Which of the following property of air does not increase with rise in temperature ________________?
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MCQs:  In free con-vection heat transfer, Nusselt number is function of________________?
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MCQs:  According to Stefan-Boltzmann law, ideal radiators emit radiant energy at a rate proportional to___________________?
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MCQs:  Log mean temperature difference in case of counter flow compared to parallel flow will be________________?
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