Engine_2014 : Motor Plants and Auxiliary Boilers - 304/2614
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| Differential type needle valves in diesel engine fuel oil nozzles, are closed directly by __________ . I. spring pressure II. fuel oil pressure |
| A) I only |
| B) II only |
| C) either I or II |
| D) neither I nor II |
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Illustration MO-0053
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