A diesel engine may be hard to start if the __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — air intake is restricted
An intake air restriction starves the cylinders of necessary oxygen, lowering volumetric efficiency and reducing the final compression temperature. This deficit inhibits complete fuel combustion, making the diesel engine hard to start.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.