更多"The fuel pipes and ducts should be "的相关试题:
[单项选择]The lubricating pipes and dusts should be blown out with （）.
A. atmosphere
B. the fresh water
C. compressed air
D. chemical compounds
[单项选择]Air compressor receivers should be “blown down” at least （）.
A. yearly
B. quarterly
C. monthly
D. daily
[单项选择]In machinery space, the valves, pipes should be（）
A. arranged as close to each other as possible to save space
B. arranged far away from each other for convenient operation
C. be fixed or clamped to avoid vibration
D. kept easy removable as to convenient repairing work
[单项选择]A centrifugal fuel oil purifier should be shut down if （）
A. more sealing water is needed
B. the cover clamp needs tightening
C. the purifier has a bad vibration when started
D. water is discharged from the overflow line
[单项选择]Gasoline fuel tank vents should terminate（）.
A. in the engine compartment
B. in the fuel tank space
C. above or outside the hull
D. at the most convenient location
[单项选择]It should be evident that the amount of fuel injected into the cylinder is dependent on the position of the helix relative to the （）.
A. inlet port
B. exhaust port
C. spill port
D. scavenge port
[单项选择]The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated （）
A. for atomizing
B. for centrifuging
C. in a storage tank
D. in the re-circulating line
[单项选择]Before being used the fuel service tank should be drained of （）.
A. soda solution
B. mechanical impurities
C. ballast
D. water and residuals
[单项选择]Fuel injection valves should be taken out, cleaned, and lifting checked every （）.
A. two to four months
B. four to six months
C. six to eight months
[单项选择]Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.
A. to protect
B. to guard
C. to maximize
D. to minimize
[单项选择]After taking on fuel oil, the hoses should be disconnected and （）.
A. draped over the fantail to dry out
B. drained over the side and washed out
C. drained into the bilges and washed out
D. drained into buckets or fuel tanks
[单项选择]Fuel injection systems meter fuel, atomize fuel, and （）.
A. create turbulence in the combustion chamber
B. aid in completing cylinder scavenging
C. inject fuel at the proper time
D. minimize fuel penetration into the cylinder
[单项选择]Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from （）.
A. within the space concerned
B. outside the space concerned
C. the throttle station
D. within the fire room
[单项选择]The fuel injector injects a fine spray of fuel into the hot air and combustion （）, producing much high pressure in the gases.
A. has begun
B. takes place
C. occurs
D. happens
[单项选择]The high-pressure fuel opens the fuel valve and is sprayed into the cylinder in tiny droplets known as （）.
A. injection
B. penetration
C. atomization
D. compression
[单项选择]All items such as steam pipes, exhaust pipes and fittings which, because of their location and operating temperature, present a hazard should be adequately lagged.That means the items should（）
A. not be put into operation too early
B. be pay adequate attention to
C. be used only when necessary
D. be coated with certain material
[单项选择]Fuel injectors used in heavy fuel oil systems are usually provided with cooling to reduce（）.
A. cold corrosion of the nozzles
B. fuel viscosity for better atomization
C. carbon accumulation on the nozzles
D. fuel detonation in the cylinders
[单项选择]During the fuel injection period, fuel pressure must exceed cylinder gas pressure to （）.
A. ensure penetration and distribution of the fuel in the combustion chamber
B. ensure the needle valve is flushed clean during each injection
C. prevent combustion gas blowback into the open needle valve
D. prevent reflected pressure waves when the needle valve closes
