A.torque wrench
B.monkey wrench
C.pipe wrench
D.slugging wrench
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A.Electric
B.Hydraulic
C.Air
D.All of the above
A.build up the piston crown by metal spraying
B.build up the cylinder head by metal spraying
C.insert shims between the crankpin bearing box and the connecting rod foot
D.install a thinner head gasket
A.cetane number of 55
B.cetane number of 45
C.octane number of 55
D.octane number of 45
A.increase
B.decrease
C.remain the same
D.increase on compression decrease on expansion
A.ignition quality of the fuel
B.high heating value of the fuel
C.amount of carbon residue after combustion
D.internal flow resistance in the injectors
最新試題
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Which of the following items don’t belong to dock repair works?（）
Under MARPOL Code the ship to which it applies has to carry （）