海船船员考试
单选题Areas which cannot be scanned by the radar of the vessel because they are shielded by parts of its superstructure, masts,etc means（）.A blind sectorsB sheltered areaC unseen areaD unscan ble area
题目
blind sectors
sheltered area
unseen area
unscan ble area
相似问题和答案
第1题：
AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE, MASTS, ETC means ______.
A.Blind sectors
B.Sheltered area
C.Unseen area
D.Unscanable area
由于被船上建筑物，桅杆等遮蔽而不能被船上雷达扫描到的区域是扇型盲区。
第2题：
In determining a safe speed, the Rules list all of the following as factors which must be taken into account EXPECT the ______.
A.limitations of radar equipment
B.presence of background lights at night
C.maximum horsepower of your vessel
D.maneuverability of your vessel
在确定安全航速时，规则下列给出的除最大功率外应该考虑下列所有因数。
第3题：
If you are the Master of a towing vessel whose only working radar no longer functions，what must you do?
A.Notify the Captain of the Port (COTP) if you cannot repair it within 96 hours
B.Notify the Officer in Charge of Marine Inspection (OCMI) if you cannot repair it within 48 hours
C.Moor the vessel until it is repaired
D.Anchor the vessel until it is repaired
第4题：
reflect
shown
detected
defected
第5题：
radar scanning
radar plotting
compass bearings
All of the above
第6题：
In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should ______.
A.stop your engines
B.sound the danger signal at two-minute intervals
C.hold course and speed until the other vessel is sighted
D.take avoiding action as soon as possible
在雾中你观测雷达并确定与在你左舷船首2海里处的船舶存在碰撞危险。你应尽可能早地采取避碰行动
第7题：
In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists. If so, she shall __________.
A.sound the danger signal
B.when taking action, make only course changes
C.avoid altering course toward a vessel abaft the beam
D.All of the above
在能见度受限水域，一船通过雷达探测到附近另一船的存在应判断是否近距离情形正在形成而碰撞危险存在。如果是，则她应避免向着其正横后的船转向。
第8题：
A vessel is approaching from dead ahead.Both of her sidelights are visible and her range lights are in line. Which of the following could you do first? ______.
A.Sound one blast of the whistle
B.Alter course to starboard
C.Construct a radar plot
D.Sound the danger signal
一船自正前方正在接近。她的两舷灯可见并桅灯成一线。你将首先采取以下什么措施？鸣放一短声（先A后B）
第9题：
Your speed must be reduced to bare steerageway
A look-out is not required if the radar is on
Fog signals are only required when a vessel is detected by radar
The radar should always be kept on a short-range scale
第10题：
Notify the Captain of the Port (COTP) if you cannot repair it within 96 hours
Notify the Officer in Charge of Marine Inspection (OCMI) if you cannot repair it within 48 hours
Moor the vessel until it is repaired
Anchor the vessel until it is repaired