更多"It is important to note that the in"的相关试题:
[单项选择]It is important to use only pure lead and to choose a thickness of wire which is greater than the normal allowable clearance but （） this amount.
A. not less than twice
B. greater at least twice than
C. not greater twice than
D. larger three times than
[单项选择]The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.
A. be affected
B. affect
C. be effected
D. effect
[单项选择]飞行中有可能使用TA方式的情况（在ND上显示“TA ONLY”信息）是（）
A. 当飞机在性能降低（发动机失效，起落架放下）或者在与跑道紧密航线上运行时，由飞行员选择
B. 如果在TA/RA位，当出现风切变，失速，近地警告信息或飞机低于1000英尺离地高时会自动选择
C. 以上都对
[单项选择]When disassembling or assembling an injection pump plunger and barrel you should （）
A. keep the parts immersed in diesel fuel
B. always keep the plunger and barrel together
C. work over a linoleum-type surface
D. all of the above
[单项选择]The emergency bilge suction or bilge injection valve is used to prevent （） of the ship.
A. proceeding
B. overloading
C. collision
D. flooding
[单项选择]Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.
A. water in the fuel oil supply
B. excessive fuel nozzle holder cooling
C. a distorted fuel spray pattern
D. leakage past the plunger into the oil drain
[单项选择]The main source of fuel injection system malfunctions is （）
A. improper adjustments
B. contaminated fuel
C. coated fuel lines
D. excessive vibration
[单项选择]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 increases
B. retard as the load increase
C. remain unchanged regardless
D. always occur at top dead center
[单项选择]With Variable Injection Timing the start of injection may be （）as the engine load is reduced.
A. advanced
B. retarded
C. kept constant
D. none of the above
[单项选择]Problems with the diesel engine fuel injection pump are usually caused by（）
A. improper adjustment
B. contaminated fuel
C. kinked fuel lines
D. excessive engine vibration
[单项选择]Heat damage to fuel injection nozzles on small high-speed diesel engines, can be prevented by（）
A. employing fuel oil as a cooling medium
B. preventing hard carbon deposit on nozzle tips
C. avoiding fuel oil temperature exceeding builder’s specification
D. ensuring good metallic contact between nozzles and cylinder heads
[单项选择]The sequence of fuel injection into cylinders is determined by （）.
A. the steering
B. the driven gear
C. the turning gear
D. the timing gear
[单项选择]Fuel injection equipment must be kept in good condition, timed correctly, and the （）in each cylinder must also be carefully balanced so that individual cylinders are not overloaded.
A. MIP
B. MCR
C. MEP
D. BHP
[单项选择]Diesel engine injection lag is caused by（）
A. compressibility of the fuel
B. high fuel oil supply flow
C. scored plunger and barrel packing
D. excessive air turbulence
[单项选择]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
[单项选择]If keep the fuel injection of main engine unchanged when ship is fouled, that will causeⅠ.The speed of main engine to be reduced Ⅱ.Ship speed to be reduced Ⅲ.The resistance torque of propeller to be increased Ⅳ.Trim at stern to increase（）
A. Ⅰ + Ⅱ
B. Ⅰ ~ Ⅲ
C. Ⅰ ~ Ⅳ
D. Ⅰ + Ⅱ + Ⅳ
[单项选择]A fuel injection valve opening at pressure lower than normal will result in（）.
A. late fuel injection
B. early fuel injection
C. high exhaust temperature from that cylinder
D. decreased effective stroke from that injector
