更多"One end of a cylinder for a medium "的相关试题:
[单项选择]One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the （）
A. crankcase
B. piston
C. cylinder liner
D. crank cheek
[单项选择]Each cylinder has one starting valve which is usually opened by air pressure and closed by （）
A. nuts and bolts
B. new joints
C. spring force
D. sealing rings
[单项选择]Broken intake valve springs on one cylinder of a diesel engine can cause the engine to （）
A. Over speed
B. fire improperly
C. lose oil pressure
D. overheatrapidly
[单项选择]Each cylinder liner on the marine medium speed engines （）.
A. is usually cooled by sea water
B. can be replaced when worn out
C. is in direct contact with the water in the bore of the cylinder
D. can t expand when heated
[单项选择]In the （） refrigeration compressor one end of the crank shaft extends through the crankcase house for connection, via a coupling or pulley, to an external drive motor.
A. open-type
B. hermetic
C. semi-hermetic
D. all the above
[单项选择]When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will indicated?（）
A. Advanced ignition
B. Clogged air intake
C. Leaky exhaust valve
D. High exhaust pressure
[单项选择]A number of cylinder liners are enclosed in one cast iron casing to form a （）.
A. cylinder cover
B. cylinder block
C. cylinder frame
D. bed-plate
[单项选择]A knocking sound from one cylinder of an operating air compressor indicates （）.
A. a defective or broken high pressure un-loader
B. a loose valve plate
C. excessive overload
D. no compression
[单项选择]Persistent knocking in one cylinder of a diesel engine could be caused by（）.
A. a low load on that cylinder
B. sluggish piston ring action
C. excessive piston crown cooling
D. excessive clearance of piston pin
[单项选择]Persistent knocking of one cylinder of a diesel engine ceases when the fuel supply to that cylinder is securedThis problem may be a result of （）
A. low loading of that cylinder
B. faulty combustion in that cylinder
C. sluggish piston ring action
D. excessive piston cooling
[单项选择]When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.
A. just
B. nearly
C. merely
D. already
[单项选择]A drop in compression pressure in one cylinder of a diesel engine can be caused by（）
A. a leaking fuel injection nozzle
B. a clogged air filter
C. early fuel injection
D. burned valves
[单项选择]A faulty injection in one cylinder of an operating diesel engine can be located by （）
A. cutting out individual injectors and noting engine performance
B. checking lube oil temperature
C. checking cam position
D. using a timing light
[单项选择]A long pole with a hook at one end，used to reach for lines，is known as a（）.
A. pike pole
B. jack staff
C. line rod
D. hooker
[单项选择]One advantage of dry cylinder liners used in a diesel engine is the（）
A. lower thermal expansion rates than wet liners
B. greater heat transfer rate than wet liners
C. greater wear resistance than wet liners
D. procedure to replace dry liners is simpler than for wet liners
[单项选择]The lubricating system for the cylinder walls is different from the bearings in that the oil for former one is supplied in （） while that for latter one is （）.
A. sufficient quantity； measured
B. measured quantity；sufficient
C. excessive quantity；sufficient
D. the less quantity the better；the more the better
[单项选择]The cylinder liner forming the cylinder wall and the inside of the water jacket is called a（）
A. dry liner
B. wet liner
C. jacket liner
D. corrugated liner
[单项选择]Cracks in cylinder and cylinder covers may （） from unequal heating.
A. make
B. cause
C. result
D. produce
[单项选择]On the top of the cylinder is mounted the cylinder cover which is pressed onto （） of the cylinder liner by means of nuts and studs.
A. the camshaft
B. the flange
C. the ridge
D. the bulge
