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Amongst which of the following factors can decrease the engine efficiency and power output of a gas turbine?

28. Amongst which of the following factors can decrease the engine efficiency and power output of a gas turbine?

  1. Lower ambient temperature
  2. Higher ambient temperature
  3. Proper fuel quality
  4. None of the above

Answer: B) Higher ambient temperature

Explanation:

Higher ambient temperatures can reduce engine efficiency and power output. When the temperature rises, the molecules expand, resulting in a lower mass flow rate of air entering the engine, which reduces the amount of fuel that can be burned and the power that can be created, ultimately leading to lower engine efficiency and power output.

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