更多"A fuel leak occurs in the high pres"的相关试题:
[单项选择]Burning fuel with a high sulfur content in a diesel engine will （）
A. increase thermal efficiency
B. cause clogging of the fuel system
C. increase the ability of the engine to start in cold weather
D. produce corrosion in the cylinder and exhaust system at low loads
[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]The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in （）
A. clogged fuel injection pumps
B. increased cylinder liner wear
C. intake valve stem corrosion
D. varnish deposit on pistons
[单项选择]The adverse effects of burning high sulfur fuel can be compensated for by using a cylinder oil having sufficient（）
A. dispersant additives
B. floc point
C. alkalinity additives
D. ignition quality
[单项选择]The high pressure in fuel injection system of the diesel engine is produced by the （）.
A. injector pump
B. fuel injector
C. governor
D. turbocharger
[单项选择]Fuel has to be injected into the engine at a high pressure so that it （） correctly.
A. is purified
B. in timed
C. is compressed
D. atomizes
[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]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
[单项选择]Air in the fuel lines to the fuel injection nozzles of a diesel will result in （）.
A. lower compression pressures
B. overheating without smoking
C. failure to start
D. a run away without load
[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]A fuel line breaks, sprays fuel on the hot exhaust manifold, and catches fire. Your first action should be to（）.
A. Batten down the engine room
B. start the fire pump
C. apply carbon dioxide to the fire
D. shut off the fuel supply
[单项选择]The fuel booster pump and steam to fuel heater, together with fuel pipe heater tracer line should be shut off as soon as the （） order is acknowledged.
A. finished with engines
B. stop
C. stand by
D. full ahead
[单项选择]If a leak occurred while loading diethylenetriamine，the chemical data guide indicates you would smell an odor similar to（）.
A. ammonia
B. rotten eggs
C. gasoline
D. None of the above
[单项选择]（）is harmful for fuel pumps, fuel valves, cylinder liner, exhaust valve seats, and the turbocharger blades as well.
A. Bad combustion of the fuel
B. Bad atomization of the fuel
C. Liquid contaminants
D. Solid contaminants
[单项选择]Cargoes that might leak from containers are known as（）.
A. dirty cargoes
B. caustic cargoes
C. wet cargoes
D. bulk cargoes
