The engine in a covered lifeboat is fueled with().
A . kerosene
B . unleaded gasoline
C . diesel oil
D . liquefied ga
相似题目
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STCW78/95 Convention describes that () are laid down for the certification of engineer officers in charge of a watch in a traditionally manned engine room, or the designated engineer in a periodically unmanned engine room.
A . available minimum requirements
B . available maximum requirements
C . mandatory minimum requirements
D . mandatory maximum requirement
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A diesel engine fails to start because of water in the fuelIn order to start the engine, you should ()?
A . turn engine with jacking gear
B . drain filters and strainers and bleed off water at each injection pump
C . use ether to start the engine with blow-down valves open
D . blow through the cylinders and fuel lines with a drying agent
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In some type of two-stroke engines, besides some small holes for(), starting valve, safety valve, indicator cock, and central opening in each cylinder cover for mounting the()
A . fuel valves;exhaust valve
B . exhaust valves;inlet valve
C . fuel valves;inlet valve
D . exhaust valves;fuel valve
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Engine coolant accumulating in the diesel engine lubricating oil can result from a ()
A . low oil pressure
B . high coolant pressure
C . leaking fuel injector
D . cracked cylinder head or liner
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In a diesel engine, when the fuel is injected into the cylinder,()
A . the piston is just coming upward from the bottom dead center
B . the piston has moved about one-fifth of the way up
C . the piston has moved most of the way up and almost reached the TDC
D . the piston has just past the TDC
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The intake valves in a diesel engine are reseated by ().
A . cam followers
B . push rods
C . combustion gases
D . valve spring
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In a normally operating diesel engine, the main cause of lubricating oil contamination in the crankcase is a result of the ().
A . metal particles loosened by wear
B . air when no air cleaners are used
C . condensation of water vapors
D . breakdown of the lubricating oil by dilutio
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Friction, engine wear and oil consumption in a diesel engine are directly related to the ().
A . acidity of the oil
B . pour point of the oil
C . flash point of the oil
D . viscosity of the oil
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In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe()
A . lubricating oil
B . dry sump
C . circulated tank
D . wet sum
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In a four-stroke engines the camshaft rotates at ().
A . half the engine rotational speed
B . twice the engine rotational speed
C . the engine rotational speed
D . four times the engine rotational speed
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If a crankcase explosion occurs in a diesel engine, you should stop the engine and()
A . immediately open all crankcase relief ports
B . increase crankcase exhauster speed to draw cool air into the engine
C . allow the engine to cool naturally
D . increase crank case scavenge air to remove unburned gase
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A change in the degree of fuel atomization in a diesel engine would most greatly affect ().
A . air turbulence
B . fuel penetration
C . fuel spray angle
D . fuel injection rate
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A ground in an electrical circuit outside the engine room ().
A . cannot be detected tinder normal conditions
B . is of no consequence to engineering personnel
C . is indicated at the branch circuit breaker panel
D . is indicated by the ground detecting lamps on the main switchboard
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In launching a covered lifeboat,what would safely lower the lifeboat from inside the lifeboat cabin?()
A . Frapping line
B . Tricing line
C . Rottmer release
D . Winch remote control wire
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A diesel engine burns () a gasoline engine of the same capacity in the same period of time.
A . as much fuel as
B . less fuel than
C . less fuel as
D . more fuel tha
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The chief engineer suggests that the second engineer () a dead line for handing in the work plan.
A . will set
B . shall set
C . set
D . set
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A restricted air intake to a diesel engine may result in the engine ().
A . failing to reach rated speed
B . knocking under maximum load
C . hunting or surging under light load
D . overspeeding and running away
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When operating the air supply system in a covered lifeboat the().
A . fuel supply valve should be closed
B . hatches,doors,and oar ports should be closed
C . air cylinder shut-off valve should be closed
D . engine should be shut off
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The highest pressure in a diesel engine cylinder normally occurs ().
A . at TDC
B . before TDC
C . after TDC
D . during air starting
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You can see a cover of the New Yorker in the video. On the cover, human beings are begging for money from AI. AI refers to ________ intelligence.
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When write a cover letter you don’t need to bother the name of the person in HR to address the letter to.
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Please write a report in that the above subjects are to be covered.()
是
否
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听力原文: In constructing a joint venture, the parties must have covered the gambit of possible legal problems as fully as possible.
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The lighting in Jake’s Steak Restaurant is dim. The chairs are covered in leather and each table is covered with a white linen cloth. The colors are limited to earth tones with an occasional splash of
A.promotions
B.target
C.atmosphere
D.product assortment