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Power Engineering Unit A2 Chapter 3 Exam 2025 Questions and Answers

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Power Engineering Unit A2 Chapter 3 Exam 2025 Questions and Answers

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Power Engineering Unit A2 Chapter 3
Exam 2025 Questions and Answers


Convection - CORRECT ANSWER✔️✔️-Occurs only in fluids (liquids and gases)


Conduction - CORRECT ANSWER✔️✔️-The direct transfer of heat from one substance to

another substance that it is touching.


Radiation - CORRECT ANSWER✔️✔️-The transfer of energy by electromagnetic waves


Parallel Flow - CORRECT ANSWER✔️✔️-Both heat transfer fluids travel in the same direction


Counter Flow - CORRECT ANSWER✔️✔️-Heat transfer fluids travel in opposing directions


Cross flow - CORRECT ANSWER✔️✔️-one fluid flows through the tubes and the second fluid

crosses perpendicular to the tubes


Combined Cross-Counter Flow - CORRECT ANSWER✔️✔️-One fluid reverses in direction

while the other fluid flows perpendicular through it twice


Boiler - CORRECT ANSWER✔️✔️-Main heat transfer surface of the steam generating unit


Temperature gradient - CORRECT ANSWER✔️✔️-Difference between furnace temperature and

boiler water temperature


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