GATE ME radiation — practice questions
14 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice GATE ME radiation in the app →Heat transfer is defined as:The THREE modes of heat transfer are:Fourier's law of heat conduction (1D) states:The Stefan-Boltzmann law for radiation gives the emissive power of a real surface as:Newton's law of cooling for CONVECTION is:Why does CONDUCTION require a MEDIUM while RADIATION does NOT?Net radiation between a small surface at T_s and a much larger surrounding at T_sur is approximately:If a CFD code can compute heat conduction but is missing CONVECTION terms, what equation is being solved?For 2-D, steady-state, no-generation conduction, the governing PDE is:The full 3-D unsteady heat-diffusion equation (with internal heat generation $\dot{q}$) is:Thermal diffusivity α is defined as:The Biot number Bi = hL/k_s appears in transient conduction. Bi ≪ 0.1 means:An ideal blackbody (emissivity ε = 1) at T = 1000 K emits how much (compared to a real surface at the same T wWhy does CONVECTION have HIGHER heat transfer rates than pure conduction for the same temperature difference?