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【简答题】
Complete the following sentences with the following words . Change the form if necessary.
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参考答案:
举一反三
【单选题】受控变量是机械运动的一种反馈控制系统称
A.
顺序控制系统
B.
伺服系统
C.
数控机床
D.
工业机器人
【单选题】The fuel injection pumps on a diesel engine are controlled by a linkage system attached to the _____.
A.
camshaft
B.
crankshaft
C.
governor
D.
flywheel
【单选题】The rate of fuel injection in a diesel engine cylinder depends primarily on _____.
A.
the size of the holes in the fuel nozzle
B.
timing of the pump
C.
supply pressure to the pump
D.
shape of the combustion chamber
【单选题】The amount of fuel injection into a diesel engine cylinder by a unit injector, is controlled by___________.
A.
the firing pressure in the cylinder
B.
a metering helix inside the pump
C.
varying the physical length of the plunger stroke
D.
varying the clearance between the injector cam and the injector rocker arm
【单选题】企业应当以实际发生的交易或者事项为依据进行确认、计量和报告,如实反映符合确认和计量要求的各项会计要素及其他相关信息,保证会计信息真实可靠、内容完整,体现的是会计信息质量要求的( )。
A.
可靠性
B.
相关性
C.
可理解性
D.
可比性
【单选题】Late fuel injection in a diesel engine is indicated by low firing pressure with _________.
A.
low exhaust temperature
B.
low exhaust pressure
C.
mechanical knock in each cylinder
D.
black or gray exhaust smoke
【单选题】朴、璞和()的概念相似。
A.
B.
C.
D.
【单选题】The two basic types of fuel injection pumps used in the diesel engine are ______ and in-line type.
A.
out-line type
B.
low-pressure pipe
C.
Distributor Pump Assembly
D.
fuel filter
【单选题】Significant retardation of a diesel engine fuel injection timing will result in ________.
A.
smoother engine operation
B.
advanced fuel ignition
C.
increased fuel economy
D.
reduced engine power
【单选题】Injection lag in a diesel engine may be caused by_______.
A.
a higher cetane number of fuel oil
B.
the diesel fuel used having a high viscosity
C.
mechanical rigidity in the lube pump mechanism
D.
a decrease rigidity in the fuel pump delivery pressure
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