Question 207Motor Plants - 1st Asst/Chief

70% to pass

Following the failure of one turbocharger on a large, crosshead, main propulsion diesel engine, fitted with multiple turbochargers, which of the following actions should be taken prior to further operation of the engine?

ALock the rotor of the damaged turbocharger.
BSecure cooling and lubrication to the damaged turbocharger.
CBlank off the exhaust gas inlet to the damaged turbocharger.
DAll of the above.
AI Explanation

The correct answer is D) All of the above. When a turbocharger fails on a large, crosshead, main propulsion diesel engine with multiple turbochargers, the following actions should be taken prior to further operation of the engine: 1. Lock the rotor of the damaged turbocharger to prevent it from spinning freely and potentially causing further damage. 2. Secure cooling and lubrication to the damaged turbocharger to prevent heat buildup and seizing. 3. Blank off the exhaust gas inlet to the damaged turbocharger to prevent uncontrolled air/gas flow through the system. Performing all of these steps is necessary to safely operate the engine with a failed turbocharger and prevent further damage to the engine or the remaining turbochargers. The other options are incorrect because they do not address all the necessary actions required.

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