Question 487Motor Plants - Assistant Engineer70% to pass
Before being shut down, a diesel engine should idle a few minutes in order to_______________.
AI Explanation
The correct answer is D) prevent damage from localized overheating.
When a diesel engine is shut down, allowing it to idle for a few minutes before shutdown helps prevent damage from localized overheating. This is because the engine components, especially the turbocharger, can become very hot during operation. Idling the engine for a short period allows the engine to gradually cool down, preventing damage that could occur if the engine was abruptly shut off while still hot. The other answer choices, while potentially relevant in other situations, do not address the key issue of preventing overheating-related damage during engine shutdown.
Related Questions
#485 Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction? #486 If sludge accumulates on the underside of a diesel engine piston, it will _______________.#488 The diesel engine shown in the illustration can be fitted with a pyrometer at each exhaust elbow. If one of the cylinder pyrometers is reading significantly higher than the others, which of the following should be your FIRST action? Illustration MO-0005 #489 The instrument shown in the illustration would be used on a diesel engine to_______________. Illustration MO-0031 #490 White smoke issuing from the exhaust of an auxiliary diesel engine could mean _______________.