A) Radiation B) Conduction C) Advection D) Convection
A) Convection B) Entropy C) Conduction D) Radiation
A) Entropy B) Convection C) Conduction D) Radiation
A) Sound intensity and surface area B) Temperature difference and material properties C) Pressure difference and time D) Mass and volume
A) No effect on heat transfer B) Decreases heat transfer rate C) Reverses heat flow direction D) Increases heat transfer rate
A) They repel heat B) They reflect radiation away C) They emit more radiation D) They absorb more radiation and convert it into heat
A) Vapor pressure B) Density C) Thermal conductivity D) Specific heat capacity
A) Conduction B) Natural convection C) Radiation D) Forced convection
A) Thermal conductivity B) Specific heat capacity C) Density D) Viscosity
A) By direct contact between two bodies. B) Through the bulk flow of fluid. C) By mechanical means such as fans. D) Through a vacuum or any transparent medium by photons or electromagnetic waves.
A) The letter 'H'. B) The letter 'P'. C) The letter 'V'. D) The letter 'U'.
A) Newton. B) Calorie. C) Joule. D) Watt.
A) A thermodynamic potential. B) A state function. C) An equilibrium constant. D) A process function (or path function).
A) Fourier's law. B) Fick's laws of diffusion. C) Newton's law for fluids. D) Ohm's law.
A) Advection B) Conduction C) Convection D) Radiation
A) Air heated by a radiator. B) Sunlight warming the ground. C) Heat transfer through a metal rod. D) Transport of warm ocean currents.
A) Velocity (m/s) B) Voltage C) Viscosity D) Volume (m3)
A) Solids B) Gases C) Liquids D) Metals
A) Density (kg/m3) B) Refractive index C) Radiation D) Resistance
A) Lower cost B) Higher thermal conductivity C) Easier temperature measurement D) Solid-state operation with no moving parts
A) 40 °C. B) 32 °C. C) 25 °C. D) Approximately 37 °C.
A) The Stefan–Boltzmann constant. B) Emissivity. C) Heat flux. D) View factor.
A) Melting B) Solid-to-solid transformation C) Sublimation D) Ionization
A) Sublimation B) Freezing C) Melting D) Condensation
A) Emissivity, which is unity for a black body. B) Stefan-Boltzmann constant. C) Heat flux. D) View factor.
A) Tin B) Gold C) Copper D) Iron
A) Recombination/deionization B) Condensation C) Deposition D) Sublimation
A) 1901 B) 1701 C) 1801 D) 1601
A) Stefan-Boltzmann law B) Fourier's law C) Newton's law of cooling D) Mason equation
A) Opposite directions B) Randomly C) Same direction D) At right angles to each other
A) Thermal transmittance adjustment. B) Passive daytime radiative cooling. C) Solar radiation management. D) Carbon dioxide removal.
A) Heat exchanger B) Thermal diode C) Heat engine D) Thermocouple
A) Watts per square meter per kelvin (W/(m2K)) B) BTUs per minute C) Joules per second D) Calories per hour
A) Cross flow B) Perpendicular flow C) Counter flow D) Parallel flow
A) Cross flow B) Parallel flow C) Diagonal flow D) Counter flow
A) Thermal transmittance values. B) Gas flow rates. C) Electric energy consumption in intervals. D) Water usage over time.
A) c_p B) v C) ρ D) ΔT
A) An open mercury container B) A digital sensor C) A thermometer inside a large, closed glass tube D) A bimetallic strip
A) About 4000 K. B) 1000 K. C) 273 K. D) 500 K.
A) Double pipe B) Shell and tube C) U-tube D) Extruded finned pipe
A) Double pipe B) Shell and tube C) Spiral fin pipe D) U-tube
A) Charles Theodore B) Benjamin Thompson (Count Rumford) C) Prince-elector of Bavaria D) Jan Ingenhousz
A) 1775 – 1789 B) 1784 – 1798 C) 1750 – 1765 D) 1800 – 1812
A) Plasma B) Solid C) Gas D) Liquid
A) Copper B) Gold C) Silver D) Lead
A) 1785 B) 1775 C) 1786 D) 1790
A) Sublimation B) Condensation C) Evaporation D) Deposition
A) Joule-Thomson effect B) Seebeck effect C) Peltier effect D) Thermal expansion effect |