Practice Quiz

FE Civil Engineering Exam Prep

Category - Civil Engineering

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What must be true about two given objects so that energy can be transferred as heat between them?
  1. The objects must be relatively close.
  2. The objects must be at different temperatures.
  3. The objects must contain a significant amount of energy.
  4. The objects must be of significant mass.
Explanation
Answer: B - Two objects must be at different temperatures so that energy can be transferred as heat between the two objects. Heat transfer can be accomplished through conduction, convection, thermal radiation, and mass transfer. The two objects do not have to be relatively close or contain significant amounts of energy or mass for heat transfer to occur.
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