Heat & Transfer Modes Quiz

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Heat transfer basics

Shiva

India

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Heat & Transfer Modes Quiz


Heat & Transfer Modes QuizVersión en línea Heat transfer basics por Shiva 1 Which mode of heat transfer occurs by direct contact between substances? a Convection b Conduction c Evaporation d Radiation 2 Which mode involves fluids circulating and creating currents? a Diffusion b Radiation c Convection d Conduction 3 Heat from the Sun to Earth mainly transfers by which method? a Convection b Conduction c Evaporation d Radiation 4 In conduction, increasing the thickness L of a material will usually: a Not affect the rate b Increase the rate of heat transfer c Make conduction stop d Decrease the rate of heat transfer 5 What property helps insulation reduce heat loss best? a High reflectivity b Low thermal conductivity c High thermal conductivity d Low density 6 Newton's law of cooling relates heat transfer to: a Temperature difference b Surface area c Color of the object d Pressure difference 7 Does radiation require a medium to transfer heat? a Only in gases b No c Yes d Only in solids 8 Which mode can transfer heat through a vacuum? a Conduction b Convection c Evaporation d Radiation 9 A spoon in hot soup becomes warm mainly due to: a Radiation b Conduction c Evaporation d Convection 10 Which factor does NOT directly affect convection rate in a fluid? a Temperature difference b Gravitational field c Fluid viscosity d Color of the container