單項(xiàng)選擇題

Which of the listed devices could be used as a substitute for a ring grooving tool?（）

A.Steel brush
B.Fine emery cloth or steel wool
C.A section of the removed compression ring
D.A case hardened scraper

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單項(xiàng)選擇題

In which of the scavenging methods listed will the exhaust valve be located in the cylinder head?（）

A.Return-flow
B.Uniflow
C.Cross-flow
D.Direct flow

單項(xiàng)選擇題

When using a fuel with a higher than normal sulfur content in an auxiliary diesel engine, you should（）

A.maintain higher than normal jacket water temperature
B.change the lube oil more frequently than normal
C.maintain a higher air-box temperature than normal
D.maintain a higher air-box pressure than normal

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Which of the listed devices could be used as a substitute for a ring grooving tool?（）

你可能感興趣的試題

In which of the scavenging methods listed will the exhaust valve be located in the cylinder head?（）

When using a fuel with a higher than normal sulfur content in an auxiliary diesel engine, you should（）

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