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