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发布时间:2023-10-15 23:28:03

[单项选择]Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the ().
A. cetane number
B. pour point
C. viscosity temperature
D. quality of the oil

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[多项选择]What are two considerations to using IP Multicast delivery? ()
A. no congestion avoidance
B. not for bandwidth intensive applications
C. no guaranteed delivery mechanism
D. source sends multiple data streams out each interface
[单项选择]Manifest and cargo plan are the two most important shipping papers required for().
A. provision order
B. discharging planning
C. annual repair
D. outward clearance
[多项选择]What are two considerations to using IP Multicast delivery? ()
A.  no congestion avoidance
B.  not for bandwidth intensive applications
C.  no guaranteed delivery mechanism
D.  source sends multiple data streams out each interface
[单项选择]In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to the ().
A. crosshead
B. crankpin
C. crank journal
D. gudgeon pin
[多项选择]What are two important guidelines to follow when implementing VTP?()
A.  CDPmust be enabled on all switches in theVTP management domain.
B.  All switches in the VTPdomain must run the same version of VTP.
C.  When using secure mode VTP, only configure management domain passwords onVTP servers.
D.  EnablingVTP pruning on a server willenable the feature for the entire management domain.
E.  Use of theVTPmulti-domain feature should be restricted to migration and temporary implementation.
[多项选择]What are two important approaches to communicate when identifying a customer’s security risks? (Choose two.) ()
A.  Smaller companies are at less risk than larger enterprises, so their security needs are not as great.
B.  Business strategy should directly relate to the security policy and budget.
C.  The designated security expert should report to the IT department, since that is where thesolution will be implemented.
D.  Security should be a continuous process.
E.  Security solutions should come from multiple vendors to make it easier to coordinate security events from the point of origin.
[单项选择]For proper operation, auxiliary boiler feed water must have which of the following characteristics?()
A. High oxygen concentration
B. Low pH
C. Proper alkalinity
D. All of the above
[单项选择]Winch gears must be maintained in proper alignment to prevent ().
A. overheating of the lube oil
B. over-speeding of the motor
C. wear on the braking system
D. damage to the teeth
[单项选择]Proper filtering and straining of fuel oil is important because the ().
A. fuel oil pump will over-speed if dirt is not removed
B. fuel oil transfer pumps cannot tolerate small amounts of dirt in the oil
C. fuel injectors may be damaged by foreign particles in the fuel oil
D. dirty fuel will clog the intake air filter
[单项选择]What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions().
A. One shot of chain for every ten feet of water
B. One shot of chain for every fifteen feet of water
C. One shot of chain for every thirty feet of water
D. One shot of chain for every ninety feet of water
[单项选择]Which of the following is the stated proper sequence before commencing cargo operations aboard Ro-Ro vessels?()
A. Start ventilation,lower the ramp,notify engine room
B. Lower the ramp,start ventilation,notify engine room
C. Notify engine room,lower the ramp,start ventilation
D. Start ventilation,notify engine room,lower the ramp
[单项选择]Proper GMDSS watchkeeping includes().
A. monitoring all required frequencies in the proper mode
B. reading all displays and/or printouts after silencing an alarm
C. notifying the Master of any distress alerts
D. All of the above
[单项选择]Proper dispersion of fuel in a diesel engine cylinder is dependent upon the ()
A. injection pressure
B. shape of combustion space
C. turbulence in combustion space
D. all of the above
[单项选择]Proper use shall be made()radar equipment.
A. with
B. to
C. for
D. of
[单项选择]The proper way to correct a mistake in the logbook is to().
A. erase the entry and rewrite
B. draw several lines through the entry,rewrite,and initial the correction
C. completely black out the entry,rewrite,and initial the correction
D. draw one line through the entry,rewrite,and initial the correction
[单项选择]Which is the proper method of determining whether a portable CO2 fire extinguisher needs recharging?()
A. Check the tag to see when the extinguisher was last charged
B. Release a small amount of CO2; if the CO2 discharges,the extinguisher is acceptable
C. Weigh the extinguisher and compare the weight against that stamped on the valve
D. Recharge the extinguisher at least once each year

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