Some （） lying in the starting air line

1、When the starting air valve closes on

When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.AjustBnearlyCmerelyDalready

2、Air in the fuel lines to the fuel inje

Air in the fuel lines to the fuel injection nozzles of a diesel engine will cause the engine to （）Aburn excessive amounts of lube oilBoverheat without smokingCoperate with reduce power or stopDrun away without load

3、The starting air entering the cylinder

The starting air entering the cylinder begins when the piston（）Ahas nearly come to the TDCBhas just past the TDCChas nearly come to the BDCDhas just past the BDC

4、Air in the fuel lines of a diesel engi

Air in the fuel lines of a diesel engine can cause （）Aignition failureBoxygen corrosion of the fuel linesCthe pistons to seizeDblue smoke

5、Air line lubricators are used in compr

Air line lubricators are used in compressed air systems to lubricate （）.Athe suction and discharge valvesBtools and equipment served by compressed airCair line reducing valvesDall of the above

6、During （）, the starting air valves sho

During （）, the starting air valves should be closed to prevent the engine from turning.AoverhaulBrunningCblowing downDAll of the above are correct