Engine_2014 : Motor Plants and Auxiliary Boilers - 1661/2614
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| You are testing a closed fuel injection nozzle using a nozzle tester. A pressure slightly less than design valve opening pressure is applied. If no fuel appears at the spray tip, the __________. |
| A) nozzle orifices are too small |
| B) nozzle orifices are eroded |
| C) needle valve spring is defective |
| D) needle valve is operating properly |
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