The speed of a locomotive is controlled by_______________?
Correct answer: D. regulating steam flow to engine
- A. flywheel
- B. gear box
- C. applying brakes 11.
- D. regulating steam flow to engine
Explanation
In a steam locomotive, engine speed and tractive effort are primarily controlled by regulating the steam admitted to the cylinders. A flywheel or gearbox does not provide the main speed-control method.
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