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