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