A.Control the amount of lube oil burned in the combustion chamber
B.Transmit heat from the piston to the cylinder liner
C.Prevent damage to ring groove inserts by acting as a heat dam
D.Dissipate combustion chamber gas pressure by channeling it through the ring gap
第1题
A.not less than twice
B.greater at least twice than
C.not greater twice than
D.larger three times than
第2题
A.Intake manifold
B.Water-cooled exhaust system
C.After-cooler
D.Exhaust diffuser
第3题
A.convection
B.conduction
C.radiation
D.ventilation
第4题
A.After stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutes
B.Close auxiliary burner firstly and then close main burner
C.After stopping fuel, restoring the position of main fuel supply valve
D.Stop blower as soon as stopping supplying fuel oil
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