单项选择题
A.reduce the turbocharger operating temperature B.increase the pressure of the inlet air C.increase the density of the inter air D.reduce the blower operating temperature
Early fuel injection timing is indicated by the cylinde...
单项选择题Early fuel injection timing is indicated by the cylinder pressure being（）
A.above normal with a below normal exhaust temperature B.above normal with a normal exhaust temperature C.below normal with a normal exhaust temperature D.below normal with an above normal exhaust temperature
Critical speeds occurring within the operating speed ra...
单项选择题Critical speeds occurring within the operating speed range of a main propulsion diesel engine may be changed, or have their damaging effects reduced by a/an （）
A.engine support vibration isolator B.detuner or viscous fluid damper C.lightened crankshaft flywheel D.spherically seated crankshaft bearing
Performance of a turbocharged engine can be improved by...
单项选择题Performance of a turbocharged engine can be improved by（）
A.decreasing the amount of valve overlap B.preheating the air intake C.after-cooling the intake air D.preheating light fuel
