更多"[单选题] All diesel engines are classi"的相关试题:
[单选题] Diesel engines obtain combustion air through turbo chargers，blowers，or ______．
A.Air starters
B.Carburetors
C.Natural aspiration
D.Air receivers
[单选题]Diesel engines are started by supplying compressed air into the in the appropriate sequence for the required direction.
A.pistons
B.combustion chamber
C.cylinders
D.cylinder blocks
[单选题] Diesel engines are considered safer than gasoline engines because ______．
A.They are more heavily built
B.The fuel used is less volatile
C.They can be easily reversed
D.They operate at a lower speed
[单选题]According to speed,all diesel enginesthree classes;low speed,medium-speed,and high-speed engines.
A.may divide
B.may be divided
C.may be divided into
D.may divide into
[单选题] Dangerous goods are classified and labelled according to their ______．
A.quality
B.quantity
C.kinds
D.hazards
[单选题]A diesel generator usually provides
A.driving power
B.a great deal of heat
C.friction
D.electricity
[单选题] Clouds are classified according to their ______.
A. Size
B. Moisture content
C. Altitude and how they were formed
D. Location in a front
[单选题]The piston is in diesel engine.
A.a shaped-pot component
B.a pot-shaped component
C.a pot-shaping component
D.a potted shape component
[单选题]Diesel oil requires less heating and thus the change from one fuel to another should take place to allow temperatures in the system to stabilize
A.freely
B.gradually
C.suddenly
D.often
[单选题]With a few exceptions medium speed diesel engines have trunk pistons pistons and connecting rods have to be fitted together before being assembled into the cylinder.
A.with the result that
B.as a result of
C.in order that
D.so as to
[单选题]belongs to the moving parts of a diesel engine,
A.The bed-plate
B.The frame
C.The main bearing
D.The crosshead
[单选题]The starting of a marine diesel engine is generally achieved with the assistance of
A.steam
B.compressed air
C.electricity
D.lube oil
[单选题]The diesel engine is a type of internal combustion engine which ignitesby injecting it into hot,high pressure air in.
A.the hot water/the scavenging air box
B.the fuel /a combustion chamber
C.the lube oil /a crankcase
D.the air/an air receiver
[单选题]With the assistance of,a marine diesel engine can be started.
A.compressed air
B.electricity
C.lube oil
D.light oil
[单选题]The advantages of these engines are in construction,durable in service and fuel saving.
A.poor
B.loose
C.complex
D.compact
[单选题] If you are unable to stop a diesel engine by any other means，you should ______．
A.Discharge a CO2 extinguisher in the air inlet
B.Pull off the distributor cap
C.Secure the jacket water
D.Secure the starting air supply valve
[单选题]If the lube oil in a diesel engine is too cold,the result is that
A.lube oil pump would lose suction
B.diesel would not start
C.diesel would be hard starting
D.overheating of the cooling system due to excess friction
[单选题]In a four-stroke diesel engine,the cycle requires four separate strokes of___
A.the crankshaft
B.the piston
C.the cylinder
D.the connecting rod
[单选题] Advise you ______ engines．
A.stop
B.to stop
C.stopping
D.stopped
