When centrifuging heavy fuel oil, an important factor to consider is the ()
(1) flow rate
(2) viscosity of the fuel oil
A . (1) only is correct
B . (2) only is correct
C . both (1) and (2) are correct
D . neither (1) or (2) are correct
[单选题]Fuel injectors used in heavy fuel oil systems are usually provided with cooling to reduce().A . cold corrosion of the nozzlesB . fuel viscosity for better atomizationC . carbon accumulation on the nozzlesD . fuel detonation in the cylinder
[单选题]Injectors for use with heavy fuel oil must be cooled by either water or light oil to_____.A.prevent heat corrosion to internal componentsB.increase fuel delivery rate and economyC.prevent pre-ignitionD.avoid carbonization of the nozzle tips
[单选题]When the fuel oil is burning in the combustion chamber, it _____.A.gives up large amount of heatB.gives off large amount of heatC.gives up large amount of steamD.gives off large amount of steam
[单选题]When the fuel oil is burning in the combustion chamber, it ().A . gives up large amount of heatB . gives off large amount of heatC . gives up large amount of steamD . gives off large amount of steam
[单选题]When fuel oil has seriously contaminated a diesel engine lubricating oil, you should ().A . filter to remove the fuel oilB . use the settler to remove the fuel oilC . remove the fuel oil by centrifugingD . drain and then renew the lube oil supply
[单选题]In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to () and heated.A . a service tankB . a collecting tankC . a sumpD . a settling tank
[单选题]The quality of the fuel oil and lube oil (), Im afraid.A . has much to do with the operation of the engine and its lifeB . have much to do with the operation of the engine and its lifeC . has much doing with the operation of the engine and its lifeD
[单选题]If there is water in fuel oil, the revolution of the engine will ().A . decreaseB . increaseC . be dismantledD . be reassembled
[单选题]The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the () systems.A . fuel treatmentB . fuel combustionC . fuel injectionD . fuel separating
[单选题]In a typical fuel system, the oil is stored in () in the double bottom.A . setting tanksB . service tanksC . tanksD . drain tank