更多"A distorted spray pattern from a fu"的相关试题:
[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]Water in the fuel can prevent the engine from starting, prevent it from developing full power, or （）
A. run at an irregular speed
B. create high lube oil temperature
C. cause the engine to over-speed
D. cause blue smoke in the exhaust
[单项选择]Air in the fuel can cause（）
A. high lube oil temperature
B. blue smoke
C. the engine to stop
D. piston seizure
[单项选择]（） into the cylinder because no fuel can burn （） it.
A. Air must be admitted；without
B. Oil must be injected；without
C. Air must be admitted；with
D. Oil must be injected；with
[单项选择]The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to（）.
A. a difference in water pressure
B. the method of breaking up the water stream
C. the length of the applicator
D. All of the above
[单项选择]Distortion of the spray pattern of a nozzle or injector may be indicated by a/an（）
A. high firing pressure
B. overload of that particular cylinder
C. smoky exhaust
D. cooling water temperature rise
[单项选择]Heat damage to fuel injection nozzles can be prevented by avoiding （）
A. excessive fuel oil temperature
B. long periods of engine overload
C. metallic contact between nozzles and cylinder heads
D. hard carbon deposit and varnish on the nozzles
[单项选择]Clogged diesel engine fuel oil filters can cause（）
A. loss of power
B. misfiring
C. low fuel oil pressure
D. All of the above
[单项选择]A dirty fuel oil filter element can be detected by （）
A. Visual inspection of the element
B. the pressure drop cross the filter
C. high fuel oil tank temperature
D. increase flow rate from the filter
[单项选择]If a diesel engine runs out of fuel, you can expect trouble from （）
A. overheated injection pumps
B. water condensation in the cylinders
C. fuel dilution of the lube oil
D. air in the fuel system
[单项选择]You are transferring fuel from the storage tanks to the day tanks by means of an electric fuel oil transfer pumpIf the pump motor catches fire, you would FIRST （）.
A. secure the fuel manifold
B. shut off power to the pump
C. shut off the power ventilation
D. spray water on the fire
[单项选择]Late fuel oil injection in a diesel engine can result in （）
A. fuel knock
B. increased power
C. low compression pressure
D. high exhaust temperature
[单项选择]Air in the fuel lines of a diesel engine can cause （）
A. ignition failure
B. oxygen corrosion of the fuel lines
C. the pistons to seize
D. blue smoke
[单项选择]The work fuel does in each working cycle can be obtained by taking the （）.
A. precautions
B. rpm
C. indicator cards
D. B and C
[单项选择]The fuel from the bunker tanks must be treated by before entering the service tanks（）, from where the fuel enters（）
A. centrifugal separators; the engine cylinder
B. oily water separators; the engine cylinder
C. oily water separators; the fuel supply system
D. centrifuges; the fuel supply system
[单项选择]If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should（）
A. remove the discharge ring
B. re-prime the purifier
C. the centrifuge to its proper speed
D. install an additional discharge ring
[单项选择]
A dirty fuel oil filter is can be detected by （）
Ⅰ.fuel oil analysis
Ⅱ.observing the pressure drop across the filter
A. Ⅰonly
B. Ⅱonly
C. eitherⅠorⅡ
D. neitherⅠnor
[单项选择]The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the （） systems.
A. fuel treatment
B. fuel combustion
C. fuel injection
D. fuel separating
[单项选择]Dirt in the fuel oil system of a diesel engine can cause （）.
A. clogged filters
B. poor combustion
C. overloading of the diesel
D. shock of fuel lines
