A.low compression pressure
B.increased piston wear
C.increased cylinder lube oil consumption
D.poor contact between compression rings and liner
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A.The sequence of events that produce a power pulse
B.One rotation of the engine crankshaft
C.One stroke of a piston
D.All of the above
A.greater high temperature strength
B.better heat conductivity
C.greater weight per cubic inch
D.increased resistance to wear
A.Atomization
B.Metering
C.Effective stroke
D.Penetration
A.fine atomization
B.high temperature
C.good mixing of fuel and air
D.all of the above
A.Rapid increase in temperature with constant pressure
B.Rapid increase in pressure with constant temperature
C.Rapid increase in pressure and temperature
D.Rapid increase in volume and decrease in pressure
最新試題
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
In using reduction gears to obtain efficient propeller speeds, （）.
The main purpose of the piston oil scraper rings is to （）.
A thrust bearing is used with a propulsion diesel engine to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
A diesel engine piston ring face is in direct contact with the （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
Diesel engine control can be obtained by the bridge （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）