单项选择题
A.oil suction line restriction B.correct amount of coolant C.cavitation erosion in the water jackets D.clogged sea suction strainer
Loss of lubricating oil pressure to the main propulsion...
单项选择题Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an （）.
A.overspeed trip B.audible/visual alarm C.the ships/boats general alarm D.reserve oil storage tank
A viscous damper, as used on a marine diesel, is a seal...
单项选择题A viscous damper, as used on a marine diesel, is a sealed precision built device which dampens the torsional vibrations in the （）.
A.camshaft B.flywheel C.crankshaft D.thrust shaft
A diesel engine is operating at 1800 RPM and driving a ...
单项选择题A diesel engine is operating at 1800 RPM and driving a propeller at 600 RPMWhat is the speed reduction ratio?（）
A.030 to 1 B.300 to 1 C.333 to 1 D.330 to 1
