Engine : Motor Plants and Auxiliary Boilers - 912/947
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| After stopping a diesel engine with a high main bearing temperature, what is the time one needs to wait before a diesel engine crankcase can be opened? |
| A) Not less than 15 minutes. |
| B) Not less than 30 minutes. |
| C) Not less than 60 minutes. |
| D) Not less than 120 minutes. |
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