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Heat Transfer - Test
  • 1. Which method of heat transfer does not require a physical medium?
A) Advection
B) Radiation
C) Convection
D) Conduction
  • 2. What is the process of heat transfer through direct contact of particles?
A) Conduction
B) Radiation
C) Convection
D) Entropy
  • 3. What is the transfer of heat through the motion of fluid particles?
A) Entropy
B) Radiation
C) Convection
D) Conduction
  • 4. What determines the rate of heat transfer in conduction?
A) Mass and volume
B) Pressure difference and time
C) Sound intensity and surface area
D) Temperature difference and material properties
  • 5. What effect does increasing surface area have on heat transfer through convection?
A) Reverses heat flow direction
B) No effect on heat transfer
C) Decreases heat transfer rate
D) Increases heat transfer rate
  • 6. Why are dark-colored objects good absorbers of heat?
A) They absorb more radiation and convert it into heat
B) They repel heat
C) They reflect radiation away
D) They emit more radiation
  • 7. Which material property affects the rate of heat conduction the most?
A) Thermal conductivity
B) Density
C) Specific heat capacity
D) Vapor pressure
  • 8. Which heat transfer method occurs in fluids due to density differences?
A) Conduction
B) Forced convection
C) Natural convection
D) Radiation
  • 9. Which material property describes the amount of heat required to raise the temperature of a substance?
A) Density
B) Specific heat capacity
C) Viscosity
D) Thermal conductivity
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