Fuel oil having a low cetane rating co

1、Late fuel oil injection in a diesel en

Late fuel oil injection in a diesel engine can result in （）Afuel knockBincreased powerClow compression pressureDhigh exhaust temperature

2、A dirty fuel oil filter element can be

A dirty fuel oil filter element can be detected by （）AVisual inspection of the elementBthe pressure drop cross the filterChigh fuel oil tank temperatureDincrease flow rate from the filter

3、The rate of fuel injection in a diesel

The rate of fuel injection in a diesel engine cylinder depends primarily on （）.Athe size of the holes in the fuel nozzleBtiming of the pumpCsupply pressure to the pumpDshape of the combustion chamber

4、Dirt in a fuel oil system of a diesel

Dirt in a fuel oil system of a diesel engine can cause （）Adamage to strainersBover-speeding of the engineCexcessive cooling of the engineDinjector damage

5、When the fuel oil is burning in the co

When the fuel oil is burning in the combustion chamber, it （）.Agives up large amount of heatBgives off large amount of heatCgives up large amount of steamDgives off large amount of steam

6、The cetane rating of diesel fuel is an

The cetane rating of diesel fuel is an indication of the（）Aignition quality of the fuelBcalorific value of the fuelCflash point of the fuelDrate of fuel consumptio