A.scale
B.sludge
C.chemicals
D.air
您可能感興趣的試卷
你可能感興趣的試題
Exhaust temperature increases in all cylinders, the possible cause may be（）
(1) increased scavenging air temperature
(2) air in fuel pumps and fuel valves
(3) fouling of air and gas passages
A.(1)+(2)
B.(1)+(3)
C.(2)+(3)
D.(1)+(2)+(3)
A.loss of flow in the fuel system
B.loss of pressure in the air system
C.loss of flow in the lubricating system
D.loss of pressure in the lubricating system
A.the viscosity index
B.the fuel oil contents
C.the starting speed
D.the reading at the rack
A.timing
B.power
C.firing order
D.dead center
A.timing
B.deviation
C.firing order
D.phase
最新試題
Maximum horsepower of a diesel engine is attained （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
Lube oil cannot be efficiently filtered if its （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
In using reduction gears to obtain efficient propeller speeds, （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.