This set of Heat Transfer Interview Questions & Answers focuses on “Heat Dissipation From A Fin Insulated At The Tip”. 1. The relevant boundary conditions in case of heat dissipation from a fin insulated at the tip are a) t = t 0 at x = 0 and d t/d x = 0 at x … Read more
This set of Heat Transfer Questions & Answers for experienced focuses on “Heat Dissipation From An Infinitely Long Fin “. 1. In heat dissipation from an infinitely long fin, the boundary conditions are a) t = t0 at x = infinity and t = ta at x = 0 b) t = t0 at x … Read more
This set of Heat Transfer Interview Questions & Answers focuses on “Steady Flow of Heat Along a Rod”. 1. Which one is true regarding rectangular fin? a) A C = b δ and P = 2(b + δ) b) A C = 2 b δ and P = 2(b + δ) c) A C = … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Fins”. 1. A very long copper rod 20 mm in diameter extends horizontally from a plane heated wall maintained at 100 degree Celsius. The surface of the rod is exposed to an air environment at 20 degree Celsius with convective heat transfer … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Heat Generation Through Sphere”. 1. Consider heat conduction through a solid sphere of radius R. There are certain assumptions (i) Unsteady state conditions (ii) One-dimensional radial conduction (iii) Constant thermal conductivity Identify the correct statements a) i and iii b) ii and … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Heat Generation Through Cylinder”. 1. A 25 mm diameter egg roll (k = 1 W/m degree) is roasted with the help of microwave heating. For good quality roasting, it is desired that temperature at the center of roll is maintained at 100 … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Dielectric Heating”. 1. Which one of the following materials are quickly heated by applying high frequency? a) Textiles b) Engines c) Rubber d) Coal 2. Generally heat generated depends on some parameters. It is directly proportional to a) Time b) Conductivity c) … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Heat Generation Through Plane Wall”. 1. In case of heat conduction through the plane wall, which one of the following is not a correct assumption? a) Steady state b) Three dimensional heat flow c) Volumetric heat generation must be constant d) K … Read more
This set of Heat Transfer Questions & Answers for freshers focuses on “Critical Thickness Of Insulation”. 1. A cable of 10 mm outside is to be laid in an atmosphere of 25 degree Celsius (h = 12.5 W/m2 degree) and its surface temperature is likely to be 75 degree Celsius due to heat generated within … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Effect Of Variable Conductivity”. 1. With variable thermal conductivity, Fourier law of heat conduction through a plane wall can be expressed as a) Q = -k0 (1 + β t) A d t/d x b) Q = k0 (1 + β t) … Read more
