更多"In the common rail system, excessiv"的相关试题:
[单项选择]To avoid excessive surge pressure when bunkering, you should （）
A. bunker at a normal rate
B. check for kinks in hose
C. close valves slowly
D. shut valves before topping off
[单项选择]The common rail engines show great advantages in combustion especially（）.
A. at high speed and full load
B. at low speed and part load
C. when heavy fuel oil is used at sea
D. when the ships run long distance
[单项选择]Excessive diesel engine back pressure may be an indication of （）
A. carbon buildup in the exhaust manifold
B. overcooling of the exhaust manifold
C. eroded muffler baffle plates
D. high injection pressure
[单项选择]A common rail engine has only one or two high pressure pumps in operation at the same（）time, and the injection into each cylinder.
A. can’t be controlled very precisely
B. can’t be controlled as flexibly as the separate pump system
C. can be controlled as flexibly as the separate pump system
D. can be controlled more precisely and flexibly
[单项选择]In a common rail engine, the fuel is injected into cylinders（）
A. by injection pumps
B. at a time decided by the injection pump timing
C. by a signal opening the magnetic valves
D. at a time decided by the cam directly
[单项选择]In common rail engines, the fuel is（） before is injected into the cylinders.
A. stored in a common fuel line
B. pumped by the injection pump
C. at low pressure
D. already atomized
[单项选择]电控柴油机控制系统中，主要作用是对Common Rail中的油压控制、主起动阀的控制以及与其它系统通信，并对主机内部信号进行检测和传输的是（）。
A. 气缸电子控制单元
B. 公共电子控制单元
C. WECS的辅助控制单元
D. 曲柄轴角度传感器
[单项选择]The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the （）.
A. bridge control panel
B. disconnect links
C. governor relay box
D. main switchboard
[单项选择]The most common diesel engine fuel system problems are caused by （）.
A. incorrect adjustments
B. dirty fuel
C. broken fuel lines
D. excessive vibration
[单项选择]The primary task of the compressed air system is to deliver the starting air necessary for （）
A. starting the ME
B. starting the emergency electric alternator
C. driving the main turbine
D. driving the turbocharger
[单项选择]The two most common gases used in pneumatic system are （）
A. compressed air and nitrogen
B. helium and nitrogen
C. oxygen and hydrogen
D. oxygen and acetylene
[单项选择]The component of a refrigerating system in which the refrigerant vaporizes and absorbs heat is known as the （）.
A. condenser
B. vapor generator
C. accumulator
D. evaporator
[单项选择]GM envisions a system（）connects intelligent cars to each other and to remote servers in a vast, moving peer-to-peer network that would let them（）efficiently and in sync.
A. that; to travel
B. which; travel
C. where; travel
D. that; travel
[单项选择]Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.
A. 5% or less
B. 10% or less
C. 15% or less
D. 20% or less
[单项选择]The sprinkler system of a survival craft is used to（）.
A. cool the craft in a fire
B. cool the engine
C. spray oil on the sea to calm it
D. spray personnel during a fire
[单项选择]Acid solution（） in the system can be tested from time to time by putting some on to a piece of lime.
A. strength
B. dense
C. percentage
D. velocity
[名词解释]城市轨道交通信号 urban rail transit signal
[名词解释]城市轨道交通优先priority of urban rail transit
[单项选择]The grab rail of a metal lifeboat is normally located（）.
A. along the turn of the bilge
B. along each side of the keel
C. near the top of the gunwale
D. at the bow and at the stern
