Question 218Motor Plants - 1st Asst/Chief70% to pass
If a diesel engine were running at 20% overload with a smoky exhaust, you should_______________.
AI Explanation
The correct answer is C) Slow the engine allowing it to gradually cool.
When a diesel engine is running at 20% overload with a smoky exhaust, the correct action is to gradually reduce the engine load and allow it to cool down. Immediately stopping the engine under these conditions could cause damage due to the high temperature and pressure. Increasing the lube oil pressure (B) or decreasing the cooling water temperature (D) would not address the root cause of the overload. Slowing the engine (C) allows the engine components to gradually cool and prevents sudden thermal shock that could lead to component failure.
Related Questions
#216 If a scavenging air space fire occurs on a slow speed diesel engine and the engine is stopped, which of the following should be done to prevent distortion due to heat? #217 Which of the following would indicate a scavenging air fire in a slow speed diesel engine? #219 In accordance with Coast Guard Regulations (46 CFR Part 112), which of the listed starting aids is acceptable for use with the emergency diesel generator?#220 What device is installed and used as a safety feature to satisfy Coast Guard regulations for the unit shown in the illustration? Illustration MO-0116 #221 Coast Guard Regulations (46 CFR Part 56) require steel tubing connections and fittings used with diesel fuel oil systems to be either flared or _______________.