搜题

【单选题】

Broken piston rings manifest themselves during the scavenge port inspection by（）

A、Lack of elastic tension, when the rings are pressed into the groove by means of a stick

B、Blackish appearance

C、Fractured rings and missing rings

D、all off the above

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更多“Broken piston rings manifest themselves during the scavenge port inspection by（）”相关的问题

第1题

[单选题] Low compression in a diesel engine could be caused by（）

A、worn or broken cylinder liner sealing rings B、high cooling water temperature C、worn or broken piston rings D、low fuel oil pressure

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第2题

[单选题] In the sentence “In some designs the cylinder oil is timed so that the oil injects only on the piston ring belt, the "piston ring belt" means （）.

A、piston crown B、piston ring groove C、piston skirt D、piston ring area

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第3题

[单选题] Before replacing a piston you should check that all rings are （）.

A、free B、fastened C、broken D、stuck

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第4题

[单选题] Low compression results from （）.

A、a worn cylinder B、broken piston rings C、either A or B D、none of the above

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第5题

[单选题] Excessive lube oil consumption can result from worn or broken（）

A、piston rings B、valve guides C、valve seals D、all of the above

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第6题

[单选题] Each piston stuffing box is provided with two sealing rings and three（）

A、packings B、piston rings C、distributor rings D、scraper rings

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第7题

[] Low compression of diesel engine may result from （）

A、A.a worn cylinder B、B.broken piston rings C、C.any of A and B D、D.none of the above

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第8题

[单选题] In order to keep excess oil from the intake ports in two-stroke/cycle diesel engines, （）

A、wide compression rings are used B、oil rings are located above the piston C、chromium plating is used on all piston rings D、oil rings are located near the bottom of the piston skirt

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第9题

[] In some diesel engine designs,（）the injection of cylinder oil is timed to impinge when the piston and only impinge on（）

A、A.is coming upward；cylinder ring belt B、B.is going downward；piston ring belt C、C.is coming upward；piston ring belt D、D.is going downward；cylinder ring belt

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