海船船员考试
单选题An individual injection pump is designed for variable beginning and constant ending of injectionFor diesel engines operating at constant speeds, the start of injection will（）A advance as the load increasesB retard as the load increaseC remain unchanged
题目
advance as the load increases
retard as the load increase
remain unchanged regardless
always occur at top dead center
相似问题和答案
第1题：
changes the position of the fuel inlet ports
changes the length of the pump stroke
varies the quantity of fuel delivered
varies the compression of the delivery valve spring
第2题：
a variable displacement axial piston pump
a constant displacement axial piston pump
a reciprocating piston pump
a centrifugal pump
第3题：
If a centrifugal pump is driven by a constant speed electric motor and produces a discharge pressure less than designed, the cause is probably ______.
A.excessive pump speed
B.excessive suction head
C.worn wearing rings
D.gross pump misalignment
第4题：
advanced
retarded
kept constant
none of the above
第5题：
control rack
delivery valve
governor speed
plunger crossbar
第6题：
deliver proper fuel quantity to the injection nozzle
provide rapid fuel injection cutoff
control fuel quantity entering the pump body
control fuel pressure delivered to the combustion chamber
第7题：
as close to the main engine as possible
as close to the main pump as possible
just before the fuel valve
just before the booster pump
第8题：
The amount of fuel delivered by a helical plunger fuel injection pump is controlled by ______.
A.varying the pump discharge pressure
B.varying the pump return pressure
C.rotation of the pump plunger
D.rotation of the pump barrel
第9题：
excessive pump speed
excessive suction head
worn wearing rings
gross pump misalignment
第10题：
tiltable disc
gravity disc
distributing disc
catch plate