A.Crankshaft revolution
B.Type of engine (diesel or gasoline)
C.Distance a piston travels during a stroke
D.Number of pistons
第1题
A.pump entry branch
B.outlet pipe
C.impeller
D.None of the above is true
第2题
A.the inlet port is opened by the up coming piston; the port is closed by the down going
B.the inlet valve is opened by the down going piston; the inlet valve is closed
C.the inlet port is opened by the down going piston; the port is closed by the up coming
D.the inlet valve is opened
第3题
A.scale
B.sludge
C.chemicals
D.air
第4题
A.excessively late fuel injection
B.oil in the air charge
C.water in the fuel
D.injection continuing after the fuel charge is ignited
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