Alarge,low-speed,mainpropulsiondieselengineusesseawatertodirectlycoolthe（）.
A: cylinderheads
B: exhaustvalves
C: scavengingair
D: injectors
A: cylinderheads
B: exhaustvalves
C: scavengingair
D: injectors
举一反三
- Alarge,low-speed,crosshead,mainpropulsiondieselengineusingresidualfueloilsmusthaveacylinderoilhavinga（） A: lowTBNvalue B: highalkalinereserve C: lowflashpoint D: highpourpoint
- low speed A: 低速 B: 中速
- Low speed A: 高速 B: 低速 C: 中速 D: 横流扫气
- The PMC ( ). A: Has no effect at low idle speed B: Is powered by the aircraft C: Can cause a reduction in engine speed only D: Is equipped with the power trim adjustment
- What are the main restrictions on the maneuverability of the direct drive propulsion system when it is moving at a low speed?_____ A: Minimum stable speed of main engine B: Reduction gearbox speed C: Clutch performance D: Propeller size