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