A.during the valve overlap period
B.with only the exhaust valve open
C.at a pressure below atmospheric
D.without cooling the cylinders or pistons
您可能感興趣的試卷
你可能感興趣的試題
A.a short length of heavy duty clear plastic tubing
B.a length of approved flexible nonmetallic hose
C.welded flange connections for all joints
D.aluminum piping with expansion loops
A.pick up more of any increase in load
B.pick up less of any increase in load
C.share an equal amount of any increase in load
D.drop an equal amount of any decrease in load
A.coolant for the distillate
B.coolant for the brine cooler
C.means of heating the feedwater
D.primary means of producing a vacuum within the distiller
A.avoid unnecessary pints inventory
B.keep torsional vibration constant
C.use existing supports and braces
D.maintain specified injection characteristics
A.acidity of the oil
B.pour point of the oil
C.flash point of the oil
D.viscosity of the oil
最新試題
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Combustion knock occurring in a diesel engine can be caused by （）.
White smoke exhausting from an operating diesel engine may indicate （）.
An automated diesel engine should normally shut down due to （）
Routine monitoring of a diesel engine should include （）.
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?（）
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.