更多"A separate piston cooling system is"的相关试题:
[单项选择]A separate piston cooling system is used （） any contamination from piston cooling glands to the piston cooling system only.
A. to help
B. to limit
C. to protect
D. to remove
[单项选择]The function of the piston compression rings used in a diesel engine is to （）
A. seal the space between the piston and liner
B. transmit heat from the piston to the cylinder liner
C. reduce the amount of combustion gas blow-by
D. all of the above
[单项选择]Piston compression rings used in a diesel engine function to （）
A. transfer heat from the cylinder to the piston
B. scrape oil from the sides of the piston
C. seal the combustion space from the crankcases
D. prevent any piston contact with the cylinder liner
[单项选择]The piston cooling system may employ similar components, except that （） is used instead of a head tank.
A. a sump tank
B. a feed well
C. a double bottom tank
D. a drain tank
[单项选择]Carbon dioxide flooding system is used for extinguishing fires because it reduces the concentration of oxygen in the air to（）.
A. flashing point
B. combustion point
C. auto-ignition point
D. lower explosive limit
[单项选择]The Consol navigation system，used in Russian and Northern European waters，can be used（）.
A. for precise navigation in coastal waters
B. by measuring the phase difference of the dots and dashes
C. as an aid to ocean navigation
D. if the vessel is fitted with a special Consol receiver
[单项选择]A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
A. purge lube oil from the liquid refrigerant
B. recover water purged from the system
C. separate foul gases from the receiver
D. purge non-condensable gases without losing refrigerant
[单项选择]In a central cooling system, used in some modem ships, sea water is supplied to cool （）which will circulate to other individual cooler, greatly reducing the corrosion problems.
A. fresh water
B. sea water
C. cooling oil
D. emulsion
[单项选择]A permanent chain chasing system is used to（）.
A. clean anchor chain as it's hauled in
B. recover anchors which have lost their buoys
C. run and retrieve anchors
D. prepare anchor chain for inspection
[单项选择]An axial piston, variable stroke pump is used in a vessels hydraulic steering gearUnder pressure, oil continually leaks out from between the valve plate/cylinder barrel and will（）.
A. cause loss of hydraulic oil from the system
B. result in extreme damage to the pump
C. cause damage to the pump ff not continually drained from the pump casing
D. result in the system high side pressure to substantially drop off
[单项选择]This used piston had been tested and approved as a spare part by the （） during last annual repair.
A. agent
B. shipchandler
C. surveyor
D. engineer
[单项选择]（） is sometimes used for piston cooling since leaks into the crankcase would not cause problems.
A. Diesel oil
B. Hydraulic oil
C. Lube oil
D. Mineral oil
[单项选择]The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the （）.
A. bridge control panel
B. disconnect links
C. governor relay box
D. main switchboard
[单项选择]Limit switches are used on which davits?（）
A. Sheath-screw davits
B. Gravity davits
C. Radial davits
D. Quadrantal davits
[单项选择]The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.
A. filter
B. cooler
C. scrubber
D. purifier
[单项选择]What is NOT a securing system used on a containership?（）.
A. Lashing system
B. Stacking system
C. Locking system
D. Buttress system
