更多"[单选题]The simplest means of piston c"的相关试题:
[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]The piston whilengne is in operation moves up and down,thus causing the rotation movemenof the
A.crankcase
B.slipper
C.bearing
D.crankshaft
[单选题]The piston is forced downward as the high pressure gases expand until it the exhaust ports.
A.uncovers
B.encloses
C.covers
D.closes
[单选题]The piston ring should be flat and free from
A.twist
B.smooth
C.constant
D.balance
[单选题]The piston moves up in the cylinder and compresses the charged air while both inlet and out let valves
A.are closed
B.remain half-opened
C.are opened
D.remain haif-closed
[单选题]Piston may be made in aluminum alloy in order to keep the weight for balancing purposes at high speed.
A.up
B.bottom
C.down
D.top
[单选题]The two-stroke cycle begins with the piston coming up from the bottom of its stroke,with the air inlet ports or scavenge ports in the side of the cylinder being
A.uncovered
B.covered
C.opens
D.closed
[单选题]As the piston moves about of the way up,it closes the inlet ports and exhaust ports in the two-stroke diesel engine.
A.one half
B.one third
C.one quarter
D.one fifth
[单选题]The cooling system also makes it possible to warm up the main engine by means of the cooling water from
A.the condenser
B.the turbocharger
C.the auxiliary engine
D.the boiler
[单选题]The cooling water is supplied to the cylinder liner cause trouble.
A.so as not to
B.not so as to
C.so not as to
D.so as to not
[单选题]5The closed water cooling system is also used for warming up the cylinders and cylinder covers
A.while operating the engine
B.after starting the engine
C.when the engine is in operation
D.before starting the engine
[单选题]Sea water is rarely used for direct cooling within the equipment it is rather corrosive.
A.because of
B.due to
C.owing to
D.in that
[单选题]The water cooling system is generally___pipes,pumps,valves and some other devices.
A.made up of
B.making up of
C.made up
D.making up
[判断题]暖机完成后的报警是“STOP COOLING AIR”
A.正确
B.错误
[单选题]机轮冷却风扇何时可以工作？（ ）
Wheel cooling fan when can it work?
A.地面，空中
The ground, air
B.地面，空中且未收上
The ground, air and did not receive
C.仅在地面
On the ground
[单选题]AOHE的冷却介质来自( )AOHE's cooling medium is from:
A.IP8引气 IP8 AIR
B.HP3引气 HP3 AIR
C.风扇函道引气. Fan duct air
[单选题] ETA／PILOT REVERTING means：
A. ETA pilot station has been given
B. ETA pilot station will be given afterwards
C. ETA pilot station was not given
D. ETA pilot station is given
[单选题]means that both exhaust ports and scavenging ports are arranged on the opposite side.
A.Uniflow scavenging
B.Cross scavenging
C.Loop scavenging
D.Straight scavenging
[单选题] If you think getting a certificate means getting a job, you are __( )_ yourself.
A. keeping
B. having
C. cheating
D. doing
