In addition to lubricating, cylinder oil assists in forming a gas seal and contains () which clean the cylinder liner.
A . additives
B . water
C . grease
D . acid solutio
相似题目
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Which lubricating oil additive is used in diesel engines to reduce the tendency for sludge and varnish to form on the engine parts?()
A . Flash point improvers
B . Pour point improvers
C . Inhibitors
D . Foam suppressor
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Air line lubricators are used in compressed air systems to lubricate ().
A、the suction and discharge valves
B、tools and equipment served by compressed air
C、air line reducing valves
D、all of the above
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Periodic publications notifying changes in,or additions to,previously published navigational data are().
A . Supplements
B . Annual Summary
C . Navigational Warnings
D . Notices to Mariner
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In addition to rice, we need to()our diet with fish, meat and vegetable.
A . supplement
B . replace
C . add
D . eat
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Passages are drilled in the crankshafts of diesel engines to provide lubricating oil to the ().
A、main bearings
B、connecting rod bearings
C、piston pin bushings
D、all of the above
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Which additional configuration step is necessary in order to connect to an access point that has SSID broadcasting disabled?()
A . Set the SSID value in the client software to public.
B . Configure open authentication on the AP and the client.
C . Set the SSID value on the client to the SSID configured on the AP.
D . Configured MAC address filtering to permit the client to connect to the AP.
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With respect to the flow of lubricating oil through a diesel engine, the lube oil coolers are located after filters in order to ().
A . allow filtration of less viscous oil
B . decrease the pressure drop across the filter
C . improve overall filtration
D . all of the above
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An important consideration in selecting a lubricating oil for use in a refrigeration compressor is for the oil to ()
A . have a high viscosity index
B . mix readily with refrigerant
C . have a high freezing point
D . have a low pour point
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Increased internal leakage, in addition to poor hydraulic system response,and inadequate lubrication, is the result of ().
A . pump bearings in poor condition
B . excessively worn actuator-piston packing
C . broken directional control valve centering springs
D . low hydraulic oil viscosity
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If a towing vessel and her tow are severely restricted in their ability to change course,they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is().
A . pushed ahead
B . towed alongside
C . towed astern
D . Any of the above
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Which additional configuration step is necessary in order to connect to an access point that has SSID broadcasting disabled?()
A . Set the SSID value in the client software to public.
B . Configure open authentication on the AP and the client.
C . Set the SSID value on the client to the SSID configured on the AP
D . Configure MAC address filtering to permit the client to connect to the AP
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In addition to AIX, which of the following operating systems is supported in a pSeries LPAR environment?()
A . z/OS
B . Linux
C . Sun Solaris 9
D . Microsoft Windows 2003
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Which additional application must be installed in order to use WebSMIT?()
A . Mozilla for AIX
B . An Apache compliant Web server
C . Web Based System Manager (WebSM)
D . Websphere Application Server Community Editio
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() providing lubricating films, oil used in marine diesel engines have to remove heat from oil cooled piston.
A . Except for
B . Beside
C . Except
D . In addition to
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Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by ().
A . internal crankshaft passages
B . immersion in oil
C . splash lubrication
D . injection lubricatio
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One remedy for a high firing pressure, in addition to a high exhaust temperature in one cylinder of a diesel engine, is to ()
A . increase scavenge air pressure
B . reduce fuel booster pump pressure
C . adjust the fuel rack
D . retard fuel injector timing
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In addition to communication equipment, the GMDSS will introduce requirements of SARTs and EPIRBs designed to improve the().
A . living standards
B . survival condition
C . chance of survival
D . technical specificatio
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In addition to the check-in procedures, the receptionist is also responsible for ( ) questions.
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In addition to its religious importance, Easter is also a popular secular holiday.
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In addition to the environment, language reflects __________ values.
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153. Latest additions and amendments to Admiralty Tide Tables are published in ______.
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Why would the British buyer in the example prefer to pay the additional £ 15?
A.He can use the $ 3,000 for investment for one month.
B.He can be insured against loss through pound sterling devaluation or floating down during the month.
C.Because the rate of these purchases is fixed whatever happens to exchange rates in the meantime.
D.Both B and C.
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If a towing vessel and her tow are severely restricted in their ability to change course,they may show lights in addition to their towing identification lights.These additional lights may be shown if the tow is ().
A.pushed ahead
B.towed alongside
C.towed astern
D.Any of the above
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In addition to his major, John had taken up some courses on economics in college so
A.A.除所学的专业外,约翰在大学还选修了一些经济学课程,以便毕业后能找到一份好工作。
B.B.除了所学专业,约翰在大学还自学了一些经济学课程,这样毕业后就找到了一份好工作
C.C.约翰毕业后就找到了一份好的工作,因为除了所学专业,还选修了其他一些大学的课程
D.D.约翰大学一毕业就找到一份好工作,因为他在本专业之外,还附带学了一些经济学课程