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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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