海船船员考试
单选题At sea，on what occasion would you display two red lights at night or two black balls during the day?（）.A When vessel is on fireB When vessel is not under commandC When vessel is carrying the dangerous cargoesD When vessel is restricted in her ability t
题目
When vessel is on fire
When vessel is not under command
When vessel is carrying the dangerous cargoes
When vessel is restricted in her ability to maneuver
相似问题和答案
第1题：
You ______ cross the road when the traffic lights are red. It’s dangerous.
A. needn’t B. may not C. mustn’t
第2题：
To determine what navigation lights and day-shapes must be displayed on mobile offshore drilling units under tow，you should check the ______.
A.American Bureau of Shipping classification rules
B.International Regulations for Preventing Collisions at Sea
C.Safety of Life at Sea Convention
D.Minerals Management Service rules
第3题：
I would like to give you my best wishes ______ this happy occasion.
A、 in
B、with
C、on
D、 over
第4题：
A vessel towing a barge astern would show，at the stern ______.
A.only a stern light
B.a towing light above the stern light
C.two towing lights in a vertical line
D.two white lights in a vertical line
第5题：
A vessel not under command making way at night would show ______.
A.two all-round red lights in a vertical line
B.anchor lights and sidelights
C.two all-round white lights in a vertical line，sidelights and a stern light
D.two all-round red lights in a vertical line，sidelights，and a stern light
第6题：
A partly submerged vessel or object being towed，which is not readily noticeable，shall show ______.
A.yellow lights at each end
B.two red lights in a vertical line
C.a black ball
D.a diamond shape
第7题：
A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?
A.During the day，she would display three balls in a vertical line
B.If making way，she would show masthead lights at night
C.If at anchor，she need not show anchor lights while displaying identifying lights
D.Her fog signal would consist of a rapid ringing of a bell for five seconds every minute
第8题：
You install Microsoft Windows Vista on a new computer that is not connected to the Internet. After you log on, you receive a warning message about an unknown device.You need to prevent the display of the warning message until you download an available hardware driver.What are the two possible ways to achieve this goal? （）
A.A
B.B
C.C
D.D
第9题：
A vessel not under command shall display ______.
A.two red lights at night and two black balls during daylight
B.two red lights at night and three black balls during daylight
C.three red lights at night and two black balls during daylight
D.three red lights at night and three black balls during daylight
第10题：
The Coordinator Surface Search（CSS）in a SAR situation should display by night ______．
A.Deck lights forward and aft
B.A white light over two red lights
C.A red light，white light，and blue light in a vertical line
D.A distinctive signal promulgated by the CSS