网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
To obtain accuracy in fixing by DF，______ and three stations should be used．
A.Parallel bearings
B.Long-range bearings
C.Short-range bearings
D.Cross bearings
参考答案
更多 “ To obtain accuracy in fixing by DF，______ and three stations should be used．A.Parallel bearingsB.Long-range bearingsC.Short-range bearingsD.Cross bearings ” 相关考题
考题
I should have to divide the class into three groups and teach them _________ at three different levels.
A. by turnB. for turnC. in turnD. of turn
考题
Which system should be supplied to obtain the best efficiency and lowest emissions?A.Lean combustion principleB.Fuel oil systemC.Electrical control systemD.Electronic control system
考题
Radar is not only to obtain ________ ，but also to measure their distances away from you．A.brightness of objectsB.color of targetsC.shape of targetsD.bearings of objects
考题
A "dangerous cargo manifest" is needed for you to carry a combustible cargo. You should obtain the shipping papers to make this "manifest" from the ______.A.manufacturerB.ABSC.Coast GuardD.shipper
考题
______ should be consulted to obtain the information concerning port documents required by the port Authority．A.Admiralty Notices to MarinersB.SOLASC.Admiralty Sailing DirectionsD.Guide to Port Entry
考题
A look-out should report objects sighted using ______．A.True bearingsB.Magnetic bearingsC.Gyro bearingsD.Relative bearings
考题
A vessel’s position should be plotted using bearings of ______.A.buoys close at handB.fixed known objects on shoreC.buoys at a distanceD.All of above
考题
Which of the following dbx commands should be used to obtain a stack trace from a coredump file?（）A、trace B、where C、status D、which
考题
Which of the following kdb subcommands should be entered to obtain information about a serial port?（）A、 ttyB、 statC、 traceD、 stream
考题
Which of the following commands should be used to obtain information about the software packages available on the installation media？（）A、 lsattrB、 inutocC、 installpD、 lsresource
考题
Which of the following options should be used to obtain the latest security patches for AIX？（）A、FixDistB、The Bonus Pack CDC、OPSD、The Security Maintenance CD
考题
Which of the following commands should be used to obtain information about the installed software？（）A、 smit systemB、 smit installpC、 smit licensesD、 smit list_software
考题
A class design requires that a member variable cannot be accessible directly outside the class. Which modifier should be used to obtain the access control？（） A、 publicB、 no modifierC、 protectedD、 private
考题
单选题A look-out should report objects sighted using（）.A
true bearingsB
magnetic bearingsC
gyro bearingsD
relative bearings
考题
单选题After a vessel transmits the original distress message，what signal should be sent to allow ships to take RDF bearings?（）A
SOS three timesB
Additional transmissions to aid direction findingC
E for one minute，followed by T for one minuteD
Two tones，10-15 seconds each
考题
单选题The list of Coast Stations is republished（）in a trilingual.A
every two yearsB
every three yearsC
every yearD
every four years
考题
单选题A navigator fixing a vessel’s position by radar （）.A
should never use radar bearingsB
should only use radar bearings when the range exceeds the distance to the horizonC
can use radar information from one object to fix the positionD
must use information from targets forward of the beam
考题
单选题To obtain accuracy in fixing by DF cross bearings，（）should be used.A
two stations，including one on the nearest coastB
two stations，including one on the nearer coastC
three stations，including one on the farthest coastD
three stations，including one on the nearest coast
考题
单选题The distance between the two NAVTEX stations with the same B1 character should be not exceed（）nautical miles.A
400B
240C
450D
180
考题
单选题（）should be consulted to obtain the information concerning port documents required by the port Authority.A
Admiralty Notices to MarinersB
SOLASC
Admiralty Sailing DirectionsD
Guide to Port Entry
考题
多选题Refer to the exhibit. A customer indicates their teleworkers plan to use IP phones in their home offices. The IT department has surveyed the planned teleworkers, resulting in the user groupings shown in the exhibit. To provide the highest voice quality, the best recommendations to this customer are（）.ADeploy all three groups with a QoS service policy, choosing the parameters for Traffic Shaping based on the average uplink speed across the three groups.BTeleworkers in Groups A and B should inquire with their DSL providers for subscriptions with higher uplink bandwidths.CTeleworkers in Group C should change their subscriptions to DSL for deployment consistency.DTeleworkers in Group A should upgrade their subscription to obtain static IP addressesETeleworkers in Group A should inquire with their DSL providers for subscriptions with higher downlink bandwidths.
考题
单选题Which of the following is true?（）A
A company should develop an ISM and implement itB
A company implementing an ISM properly may obtain a DOCC
Once a company obtains its DOC, each vessel of this company will obtain a SMCD
DOC is valid for 60 months unless “major non-conformity” is found
考题
单选题To obtain accuracy in fixing by DF，（）and three stations should be used.A
parallel bearingsB
long-range bearingsC
short-range bearingsD
cross bearings
考题
单选题The oil in a cargo winch gear box should be sampled periodically to （）.A
prevent the gear box from leakingB
prevent the oil from becoming inflammableC
make sure it has not become contaminatedD
make sure the motor bearings are lubricated
考题
单选题The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.A
acidsB
additivesC
heatD
gear
考题
单选题The ARQ mode should be applied（）.A
when two stations communicate with each otherB
in any radio system and at any timeC
when one ship sends a message to another stationD
for communication among some stations
考题
单选题To protect the rotor of a motor disassembled for maintenance or overhaul, it should be（）A
suspended by wire slings in one comer of the shopB
wrapped in several layers of heavy paper or carboardC
supported by flat wood blocks on the workbenchD
returned to the frame as soon as the bearings are removed
热门标签
最新试卷