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