The shells are secured by means of bearing caps and studs, the necessary clearance being provided by means of （） of different thickness.

[单选题]What is the function of the thrust bearing?（）A . Prevents lateral movement of the slow speed gearB . Transmits propeller thrust to the hullC . Keeps spring bearings in lineD . Prevents main reduction gear axial movement

[单选题]The bed-plate is secured in the longitudinal direction by means of bolts known as （）.A . end-chock boltsB . side-chock boltsC . through boltsD . tie rod

[单选题]The bearing shells depend on the accuracy of （） to held them in a truly circular shape.A . the gapB . the clearanceC . the boreD . the housing

[单选题]The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?（）A . main bearing shellsB . main bearingC . steelD . bearing me

[单选题]The main bearing shells often have a thin （） of lead or indium to provide a layer giving protection against corrosion.A . flangeB . flashC . plateD . sheet

[单选题]A main bearing consists of two shells which are secured by means of studs and （）.A . tie rodsB . through boltsC . lead wiresD . bearing ca

[单选题]VIT means （）A . variable injection timingB . variable inlet tonnageC . vertical incoming tonnageD . vertical inlet tank

[单选题]（ ） means that the seller delivers when the goods， once unloaded from the a

[单选题]（ ） means that the seller delivers when the goods， once unloaded from the a

[单选题]The word “ uncertained ” means _________ .A． 相同的 B. 犹豫的 C. 令人满意的