Engine : Expired / Motor Plants and Auxiliary Boilers - 335/354
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| In a two-stroke/cycle, opposed piston, diesel engine, one crankshaft operates several crank angles in advance of the other crankshaft to __________. |
| A) allow the exhaust ports to open and close before the inlet ports close |
| B) allow the scavenge ports to open and close simultaneously with the exhaust ports |
| C) prevent scavenge air pressure buildup in the cylinders |
| D) prevent the exhaust piston from reaching TDC and BDC before the intake piston |
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