Low compression of diesel engine may result from （）

[单选题]Low compression in a diesel engine could be caused byA．worn or broken cylinder liner sealing ringsB．high cooling water temperatureC．worn or broken piston ringsD．low fuel oil pressure

[单选题]As to the low speed diesel engine, if you want to change the coolant flow for a certain cylinder, you can regulate （）.A . the inlet valveB . the outlet valveC . both the inlet valve and the outlet valveD . the pump inlet valve

[单选题]A diesel engine may be hard to start if the （）A . air intake is restrictedB . engine is cranked too fastC . vibration dampener is faultyD . exhaust back pressure is low

[单选题]Diesel engine exhaust temperatures may be used to indicate （）.A . leaking exhaust valvesB . an overloaded cylinderC . a clogged injector nozzleD . all of the above

[单选题]Low compression results from （）.A . a worn cylinderB . broken piston ringsC . either A or BD . none of the above

[单选题]A．ccording to this passage, ______may result in the imbalance of bacteria in your intestines.A．) antibiotic treatment for an ear infectionB．) taking pills which contain freeze-dried germsC．) eating yogurt or buttermilkD．) eating products made from fe

[单选题]_____ the engines, the diesel engine is ____ used engine on boardA．Between / more commonlyB．Among / the most commonlyC．Between / not more commonlyD．Among / not the most commonly

[单选题]The heart of the diesel engine is the （） where the fuel is burnt and the power developed.A . crankcaseB . cylinderC . scavenge boxD . pisto

[单选题]The diesel engine is a type of （）.A . turbine engineB . gas turbineC . steam engineD . internal combustion engine

[单选题]F．or a continuous operation diesel engine, a duplex filter unit would be the best arrangement becauseA．changing filter elements would not interrupt engine operationB．filtering occurs twice in each pass of oil through the systemC．clogging will not occ