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单选题
（） unit is mounted so as to raise and lower the cable from the spurling pipe, which is at the top and center of the chain or cable locker.
A
The cable lifter
B
The hoisting motor
C
The topping wire
D
The life-raft
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考题
Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel?A.Lower the stern ramp，raise/open the stern door，turn on ventilation for cargo holdsB.Turn on ventilation for cargo holds，raise/open the stern door，lower the stern rampC.Turn on ventilation for cargo holds，lower the stern ramp，raise/open the stern doorD.Raise/open the stern door，lower the stern ramp，turn on ventilation for cargo holds
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A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment?A.Move the quadrantal spheres closer to the compassB.Raise the heeling magnet if the red end is upC.Remove some of the Flinders barD.Raise or lower the athwartship magnets
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In order to minimize the effects of a tender vessel，when carrying a cargo of lumber，you should ______．A.Maximize your deck loadB.Distribute lumber so that those stowing most compactly per unit of weight are in the upper holdsC.Place the heaviest woods in the lower holdsD.Keep the vessel's frame spaces free from lumber
考题
CDMA for cellular systems can be described as follows.As with FDMA，each cell is allocated a frequency（ ），which is split into two parts,half for reverse（mobile unit to base station）and half for（ ）（base station to mobile unit）.For full-duplex（ ）.a mobile unit uses both reverse and forwardchannels.Transmission is in the form of direct-sequence spread（本题）,which uses a chipping code to increase the data rate of the transmission,resulting inan increased signal bandwidth.Multiple access is provided by assigning（ ）chipping codes to multiple users,so that the receiver can recover the transmission of an individual unit from multiple transmissions.A.structure
B.spectrum
C.stream
D.strategy
考题
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B.orthogonal
C.higher
D.lower
考题
The music was so loud that she had to raise her voice to make herself（）AhearBheardCto hearDhearing
考题
The music was so loud that she had to raise her voice to make herself（）A、hearB、heardC、to hearD、hearing
考题
When installing cables， which of the following is the BEST way of identifying the individual cables？（）A、A cable chart mounted in the cabinetB、A label at the tip of the cableC、A label within six inches at each end of the cableD、A penciled notation on the panel cover
考题
Why would you make a non-backbone area a stub or not-so-stubby area？（）A、 to aggregate routes learned from the ABRB、 to lower the cost of routes advertised by the ABRC、 to connect a non-contiguous area to the backboneD、 to decrease the size of the link-state database in that area
考题
Which two statements are true about broadband cable （HFC） systems？（）A、Cable modems only operate at Layer 1 of the OSI model.B、Cable modems operate at Layers 1 and 2 of the OSI model.C、Cable modems operate at Layers 1， 2， and 3 of the OSI model.D、A function of the cable modem termination system （CMTS） is to convert the modulated signal from the cable modem into a digital signal.E、A function of the cable modem termination system is to convert the digital data stream from the end user host into a modulated RF signal for transmission onto the cable system.
考题
An administrator is up grading the back up server from a single tape drive to a SCSI tape library. The library has been unpackaged， mounted， and the library drivers installed. Which of the following items should the administrator have to connect the device to the backup server？（）A、 SCSI cableB、 SCSI interface adapter on the tape libraryC、 SCSI termination card on the serverD、 iSCSI cable
考题
单选题Which of the following will increase the height of the center of buoyancy for your vessel?（）.A
Discharging weight from lower decksB
Loading weight in upper decksC
Shifting weight from lower to upper decksD
Shifting weight from upper to lower decks
考题
单选题Which of the following will increase the positive stability of your vessel?（）.A
Loading weight on deckB
Discharging weight from lower decksC
Shifting weight from upper to lower decksD
Shifting weight from lower to upper decks
考题
单选题During severe storms when survival becomes a major concern，it may become necessary to relieve high anchor tensions on the windward side of the unit by（）.A
deballasting the rigB
ballasting the rigC
paying out cable on the windward sideD
paying out cable on the leeward side
考题
单选题The safety stopper that prevents the anchor cable from running free if the cable jumps the wildcat is the（）.A
riding pawlB
devil's clawC
buckler plateD
spill pipe
考题
单选题In order to minimize the effects of a tender vessel，when carrying a cargo of lumber，you should（）.A
maximize your deck loadB
distribute lumber so that those stowing most compactly per unit of weight are in the upper holdsC
place the heaviest woods in the lower holdsD
keep the vessel's frame spaces free from lumber
考题
单选题A centrifuge of which the bowl is arranged as the upper and lower parts separate discharges the sludge（）A
by opening the separator manuallyB
by separating the lower part from the upper part automaticallyC
by separating the upper part from the lower part automaticallyD
continuously
考题
单选题Many vessels are provided with flume tanks，which also have a dump tank located under the flume tanks. In the event the ship is damaged，you could dump the flume tanks into the dump tank which would（）.A
reduce the free surface effect and raise the KGB
not have any effect on free surface and raise the KGC
reduce the free surface effect and lower the KGD
not have any effect on free surface and lower the KG
考题
单选题A set of clamps that are latched onto the drill pipe to allow the driller to raise or lower the drill string out of or into the hole are the（）.A
liftsB
collarsC
elevatorsD
clamps
考题
单选题The（） of the telemotor is mounted on the steering gear.A
transmitterB
receiverC
pipesD
charging unit
考题
单选题（）are used to ensure that ships don’t discharge oil when pumping out oily water from any oil contaminated space.A
BoilerB
IncineratorC
Oily water separatorD
Sewage treatment unit
考题
单选题Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel? （）A
Lower the stern ramp，raise/open the stern door，turn on ventilation for cargo holdsB
Turn on ventilation for cargo holds，raise/open the stern door，lower the stern rampC
Turn on ventilation for cargo holds，lower the stern ramp，raise/open the stern doorD
Raise/open the stern door，lower the stern ramp，turn on ventilation for cargo holds
考题
单选题In a general cargo crane, （） is fitted to raise or lower the jib.A
the slewing motorB
the luffing motorC
the hoisting motorD
none of the above
考题
单选题An administrator is up grading the back up server from a single tape drive to a SCSI tape library. The library has been unpackaged， mounted， and the library drivers installed. Which of the following items should the administrator have to connect the device to the backup server？（）A
SCSI cableB
SCSI interface adapter on the tape libraryC
SCSI termination card on the serverD
iSCSI cable
考题
单选题A system administrator has filesystems that should not be mounted during system startup. How can the system administrator prevent the /data filesystem from being mounted during subsequent boots？（）A
mount -no /dataB
chfs -A no /dataC
mount -t nfs /dataD
chfs -a type=nfs /data
考题
单选题Which SELECT statement will the result ‘ello World’ from the string ‘Hello World’?（）A
SELECT SUBSTR( ‘Hello World’,1) FROM dual;B
SELECT INITCAP(TRIM (‘Hello World’, 1,1)) FROM dual;C
SELECT LOWER(SUBSTR(‘Hello World’, 1, 1) FROM dual;D
SELECT LOWER(SUBSTR(‘Hello World’, 2, 1) FROM dual;E
SELECT LOWER(TRIM (‘H’ FROM ‘Hello World’)) FROM dual;
考题
单选题Just after stopping the engine while the oil is still circulating.Check that uniform oil jets appear from all the oil outlet grooves in the crosshead bearing lower shell and the guide shoes.The oil flow from （） must be compared from unit; there should be a similarity in the flow patterns.A
the piston cooling oil return pipesB
the main and crankpin bearingsC
thrust and intermediate bearingsD
stern tube and thrust bearings
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