搜题

【单选题】

The bearing shells depend on the accuracy of （） to held them in a truly circular shape.

A、the gap

B、the clearance

C、the bore

D、the housing

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更多“The bearing shells depend on the accuracy of （） to held them in a truly circular shape.”相关的问题

第1题

[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 shells B、main bearing C、steel D、bearing metal

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第2题

[单选题] Shims of different thicknesses are inserted between the shells to enable adjustment of （）.

A、the bearing clearances B、the bearing thickness C、the bearing strength D、the bridge hardness

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第3题

[单选题] A distance piece, known as a （） may be interposed between the rod and the bearing housing.

A、bearing shell B、bearing liner C、compression plate D、lead wire

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第4题

[单选题] The pumps press oil into the cross-head bearing gap when the load on the shell is at its lowest What is the meaning of “its” in the sentence above?（）

A、the cross-head B、the pumps C、the shell D、the load

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第5题

[单选题] Just after stopping the engine while the oil is still circulating.Check that uniform oil jets appear from all the oil outlet grooves in the crosshead bearing lower shell and the guide shoes.The oil flow from （） must be compared from unit; there should be a similarity in the flow patterns.

A、the piston cooling oil return pipes B、the main and crankpin bearings C、thrust and intermediate bearings D、stern tube and thrust bearings

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第6题

[单选题] The main bearings are provided with thin-walled （）, lined with a copper-lead alloy.

A、steel guides B、steel shells C、steel bearing caps D、pig iron

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第7题

[单选题] The connecting rod large end bearing shell generally has tags for location and oil grooves round the center of its axial length which correspond with grooves in the （） through which oil is transmitted up the rod to lubricate the small end.

A、connecting rod B、piston rod C、bearing housing D、none of the above

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第8题

[单选题] To determine the main bearing clearance of a propulsion diesel engine, you should measure the main bearing shell using a ball anvil outside micrometer and measure the crankshaft journal using a/an （）

A、telescoping B、ring ‘snap’ gauge C、inside vernier caliper D、outside micrometer

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第9题

[] The bearing shell generally has （） for location and oil grooves round the center of its axial length.

A、A.tips B、B.tags C、C.lips D、D.keys

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