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Dear candidates you will find MCQ questions of Heat Transfer here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
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Q. 1) Absorptivity of a body will be equal to its emissivity
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Q. 2) A steam pipe is to be insulated by two insulating materials put over each other. For best results
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Q. 3) A perfect black body is one which
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Q. 4) A non-dimensional number generally associated with natural convection heat transfer is
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Q. 5) A grey body is one whose absorptivity
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Q. 6) 40% of incident radiant energy on the surface of a thermally transparent body is reflected back. If the transmissivity of the body be 0.15, then the emissivity of surface is
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Q. 7) Planck's law holds good for
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Q. 8) If the temperature of a solid surface changes form 27°C to 627°C, then its emissive power changes in the ratio of
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Q. 9) Depending on the radiating properties, body will be transparent when
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Q. 10) According of Kirchhoff's law,
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