更多"Generally speaking，the fuel injecte"的相关试题:
[单项选择]The desirable properties of a marine fuel oil should include（）
A. high flash point and high viscosity
B. low flash point and high viscosity
C. low heating value and high sulphur content
D. high heating value and low sulphur content
[单项选择]Generally speaking , the heavier cargo will go into the（）,distributing it evenly fore and aft, the lighter cargo will probably be placed in the（）.
A. deep tanks/lower holds
B. lower holds/tweendecks
C. tweendecks/deep tanks
D. deep tanks/tweendecks
[单项选择]Generally speaking，in the Northern Hemisphere，when winds are blowing from between SE and SW the barometric reading（）.
A. makes no change at all
B. is somewhat lower than it would be for winds from a northern quadrant
C. is uncertain and may fluctuate by increasing and decreasing
D. is somewhat higher than it would be for winds from the northern quadrant
[单项选择]Generally speaking，the most favorable bottom for anchoring is（）.
A. Very soft mud
B. Rocky
C. A mixture of mud and clay
D. Loose sand
[单项选择]Generally speaking，the heavier cargo will go into the（），distributing it evenly fore and aft，the lighter cargo will probably be placed in the（）.
A. deep tanks／lower holds
B. lower holds／tweendecks
C. tweendecks／deep tanks
D. deep tanks／tweendecks
[单项选择]Generally speaking，a ship steaming across the North Pacific from Japan to Seattle is likely to experience（）.
A. adverse currents for practically the entire crossing
B. favorable currents for practically the entire crossing
C. favorable currents in the summer months and adverse currents in the winter months
D. variable currents having no significant effect on the total steaming time
[单项选择]Generally speaking，you should expect to find low atmospheric pressure prevailing in the earth’s（）.
A. equatorial area
B. polar regions
C. mid-latitudes
D. All of the above
[单项选择]Generally speaking, suction heads require to be （） for high speed or large capacities than for low speed or small capacities.
A. greater
B. smaller
C. better
D. worse
[单项选择]Generally speaking，with（）the weather becomes cloudy or overcast with strong winds.
A. high pressures
B. low pressures
C. weak pressures
D. strong pressures
[单项选择]Fuel droplets injected into a diesel engine cylinder must have adequate penetration to （）
A. prolong the ignition delay period
B. ensure the beginning of fuel injection
C. thoroughly utilize the air charge
D. allow controlled fuel combustion
[单项选择]Modern marine diesel engines using mechanical fuel injection, operate on a combustion cycle which is（）
A. a combination of constant volume and constant pressure
B. a combination of constant temperature and constant pressure
C. entirely constant pressure
D. entirely constant volume
[单项选择]Fuel injected into a diesel engines cylinder is ignited by （）.
A. the heat compressed fuel/air mixture in the cylinder
B. the fuel igniter
C. the fuel injector
D. the fuel pump
[单项选择]
The sequence of parts in a generally used fuel oil supply system for a main engine is （）
(1)tanks in the double bottom
(2)centrifuges
(3)service tank
(4)settling tank
(5)viscosity regulator
A. (1)-(2)-(4)-(3)-(5)
B. (1)-(4)-(2)-(3)-(5)
C. (1)-(3)-(2)-(4)-(5)
D. (1)-(5)-(4)-(2)-(3)
[单项选择]When fuel is injected in a diesel engine cylinder too early, （）
A. ignition may be delayed
B. fuel economy is not affected
C. exhaust gas temperature will be unchanged
D. the exhaust will be clear
[单项选择]Fuel has been injected but ignition fails The possible cause may be （）.
A. leaky exhaust valve
B. increased scavenging air temperature
C. engine cylinders not scavenged sufficiently
D. water in the fuel oil
[单项选择]The amount of fuel injected in a particular time, or degree, of crankshaft rotation is termed （）.
A. metering
B. timing
C. rate of injection
D. rate of distribution
[单项选择]Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）
A. increase engine power
B. increase engine load
C. decrease engine power
D. improve fuel economy
[单项选择]When fuel is injected late into a diesel engine cylinder,（）.
A. the exhaust will be clear
B. fuel consumption will be low
C. all the fuel will be burned at top dead center
D. fuel consumption will be high
