Fuel injection begins during the compression stroke, before the piston reaches _ .

[单选题]Fuel oil begins injection into the cylinder of a four-stroke/cycle diesel engine during the （）.A . intake strokeB . exhaust strokeC . power strokeD . compression stroke

[单选题]If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because theA．cylinder compression pressure may not be high enoughB．cylinder compression temperature may be too highC．fuel oil injection press

[单选题]During the fuel injection period, fuel pressure must exceed cylinder gas pressure to （）.A . ensure penetration and distribution of the fuel in the combustion chamberB . ensure the needle valve is flushed clean during each injectionC . prevent combust

[单选题]During the suction stroke, the piston is moving （）.A . inwardsB . outwardsC . downwardsD . upward

[单选题]If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the （）.A . cylinder compression pressure may not be high enoughB . cylinder compression temperature may be too highC . fuel oil injec

A piston in a four-stroke/cycle diesel engine makes four strokes during each( )

During the 4th stroke, ______ and piston moves up, pushing the burned gases out

[单选题](piston area)×(piston stroke)×(numbers of the cylinders)=engine( ).A．brake horsepowerB．displacementC．cylinder volumeD．cylinder clearance

[单选题]Fuel injection systems meter fuel, atomize fuel, and （）.A . create turbulence in the combustion chamberB . aid in completing cylinder scavengingC . inject fuel at the proper timeD . minimize fuel penetration into the cylinder

[单选题]The sequence of fuel injection into cylinders is determined by （）.A . the steeringB . the driven gearC . the turning gearD . the timing gear