A diesel engine may fail to start when being cranked, due to __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — insufficient compression
Marine diesels rely on heat of compression to ignite injected fuel. Insufficient compression pressure fails to elevate the charge air temperature high enough to reach the fuel's auto-ignition point, causing the engine to fail to start.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.