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发布时间:2023-10-24 21:22:56

[单项选择]Fuel oil tanks must be fitted with () that can be closed rapidly and remotely in the event of an emergency such as a fire.
A. stop valves
B. non-return valves
C. quick closing valves
D. relief valves

更多"Fuel oil tanks must be fitted with "的相关试题:

[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]Injectors for use with heavy fuel oil must be cooled by either water or light oil to ()
A. prevent heat corrosion to internal components
B. increase fuel delivery rate and economy
C. prevent pre-ignition
D. avoid carbonization of the nozzle tips
[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]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]

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]Fuel oil day tanks for diesel engines must be checked and cleaned and cleaned at regular intervals in order to remove()
A. sludge
B. water
C. micro-organism growth
D. all of the above
[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]When separating fuel oil in oil separator, the separating quantity is() of the real quantity.
A. 100%
B. 80%
C. 1/2
D. 1/3
[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
[单项选择]In a diesel engine, fuel must be broken up into a spray of fine droplets to ().
A. increase its quality
B. obtain complete burning
C. reduce its weight
D. all of the above
[单项选择]Dirt in a fuel oil system of a diesel engine can cause ()
A. damage to strainers
B. over-speeding of the engine
C. excessive cooling of the engine
D. injector damage
[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]

When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?()
Ⅰ.filtering
Ⅱ.settling


A. Ⅰ only
B. Ⅱ only
C. either Ⅰ or Ⅱ
D. neither Ⅰ or Ⅱ
[单项选择]Diesel engine lube oil diluted with fuel oil is indicated by()
A. decreased viscosity
B. decreased pour point
C. increased flash point
D. increased viscosity
[单项选择]In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to () and heated.
A. a service tank
B. a settling tank
C. an expansion tank
D. a double bottom tank
[单项选择]In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to () and heated.
A. a service tank
B. a collecting tank
C. a sump
D. a settling tank
[单项选择]The quality of the fuel oil and lube oil (), Im afraid.
A. has much to do with the operation of the engine and its life
B. have much to do with the operation of the engine and its life
C. has much doing with the operation of the engine and its life
D. have much doing with the operation of the engine and its life
[单项选择]Diesel engine fuel oil contamination often results in ()
A. governor malfunctions
B. fuel injection system malfunctions
C. high cylinder lube oil temperatures
D. low intake temperatures

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