更多"Injectors for use with heavy fuel o"的相关试题:
[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]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]While taking on fuel, you notice oil on the water around the vesselWhich of the following actions should be taken FIRST?()
A. Stop fueling
B. Notify the dispatcher
C. Notify the terminal superintendent
D. Determine if your vessel is the source
[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]In a typical fuel system, the oil is stored in () in the double bottom.
A. setting tanks
B. service tanks
C. tanks
D. drain tanks
[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]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]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]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
[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]
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]A safe fuel system must().
A. prevent engine overheating
B. have proper air/gasoline fuel mixture ratio
C. be liquid- and vapor-tight
D. supply sufficient air to the intake manifold
[单项选择]One engine manufacturer recommends heavy fuel oil should not be heated above 80℃ to 95℃ (176 ℉ TO 203℉) before purificationThis upper limit should be observed to ensure against()
A. flattening of the bowl neoprene O-rings
B. operation within the explosive rang of the fuel
C. excessive purifier operating pressures
D. excessive oil viscosity
[单项选择]Fuel oil contamination of an auxiliary diesel engine lube oil can result in()
A. an increased flash point
B. higher lube oil pressures
C. an increased viscosity
D. lower lube oil pressures
[单项选择]The fuel oil pressure and forced draught pressure should be matched to ensure good combustion with a full steady flameIn the sentence the word “match” means ()
A. join with
B. mix
C. be equal to
D. be constant
[单项选择]The viscosity regulator controls the fuel oil temperature () provide oil at the correct viscosity for combustion.
A. in order that
B. because of
C. in order to
D. owing to