On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).

[单选题]On a medium-speed main propulsion diesel engine, the crank-pin or crank journal bearings receive lubricating oil from （）.A . a spindle lubricatorB . an oil jetC . internal splashingD . drilled passages in the crankshaft

[单选题]（） clearances in the main or crank pin bearings will sometimes be indicated by loss of pressure in the lubricating system before any bearing knock is heard.A . Too largerB . Too smallerC . ExcessD . Excessive

[单选题]On a turbo-charged, medium-speed diesel engine, which of the following problems is an indication of a restricted air intake passage?（）A . Engine is hard to startB . Engine missesC . Surges at governed RPMD . Coolant temperature is too low

[单选题]On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).A．a spindle lubricatorB．an oil jetC．internal splashingD．drilled passages in the crankshaft

[单选题]The main propulsion diesel engine jacket water temperature rises above normal, with the raw sea suction and the expansion tank water level being normal. Which of the following problems is most likely the cause?A．Faulty thermostatic bypass valveB．Erod

[单选题]With the crank in position in the engine, some measurements can be taken by a special bridge gauge and （）.A . a micrometerB . a bowlC . a feeler gaugeD . a wrench

[单选题]The crank pin journal is provided with large bores for （）.A . lubricationB . coolingC . balancing purposeD . ventilatio

Cylinder lubrication oil for low speed main propulsion diesel engines is admitte

[单选题]In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the _____.A．governor droopB．speeder spring tensionC．fuel rack lagD．load on the engine

Most large, low-speed, main propulsion diesel engines use duplex lube oil strain