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