A . screwed
B . welded
C . fastened
D . rotated
[单选题]If some of the cylinders are not firing, the ones affected may be determined by watchingA.the exhaust temperatureB.the exhaust pressureC.the governorD.the fuel flow meter
[单选题]A.t least ___ cylinders in four--stroke engine will be configured to ensure that the engine can started with the crankshaft at whatever position.A.6B.2C.12D.8
[单选题]Once all cylinders are firing regularly, () is shut off.A . the exhaust valveB . the starting airC . the inlet valveD . the fuel oil
[单选题]Cylinders of marine diesel engines are normally cooled by ().A . sea waterB . fine mineral oilC . sanitary waterD . fresh water
[单选题]At least () cylinders in four-stroke engine will be configured to ensure that the engine can be started with the crankshaft at whatever position.A . 6B . 2C . 12D . 8
[单选题]As to the piston cooling, of the following, which statement is not true?()A . Because the piston is exposed to very high temperature, it must be cooledB . The lower the piston cooling temperature is, the better it isC . Both water and lube oil can be
[单选题]10.—What color______ Jim's jackets? .—________black.A. is ;It'sB. is; They'reC. are ;It'sD. are; They're
[单选题]The purpose of treating the cooling water of the diesel engine is to______. I、 resist the scale formation in the cooling chamber II、lubricate the engine part II III、increase thermal capacity IV、 resist corrosionA.I + IIB.II + IIIC.III + IVD.I + IV
[单选题]Piston cooling fins are locatedA.atop the piston crownB.beneath the piston crownC.at the base of the piston skirtD.inside the cylinder liner cooling water jacket
[单选题]The purpose of treating the cooling water of the diesel engine is to____. I、 resist the scale formation in the cooling chamber II、 lubricate the engine part III、 increase thermal capacity IV、 resist corrosionA.I +IIB.II + IIIC.III + IVD.I +IV