Engine_2014 : Motor Plants and Auxiliary Boilers - 990/2614
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| The diesel engine rocker arms shown in the illustration serve to __________ . |
| A) open the intake and exhaust valves |
| B) operate the exhaust and starting valves |
| C) convert rotational energy to reciprocating pressures |
| D) open the exhaust valves and operate the unit injectors |
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Illustration MO-0122
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