航海英语号灯与号型单项选择题每日一练(2017.12.26)

单项选择题
Which vessel，when anchored at night，is NOT required to show anchor lights?（）.
A.A power-driven vessel
B.A vessel engaged on pilotage duty
C.A vessel dredging
D.A vessel restricted in her ability to maneuver
单项选择题
A towing light is a yellow light having the same characteristics as a(n)（）
A.special flashing light
B.anchor light
C.sternlight
D.masthead light
单项选择题
Two short blasts of the whistle have all of the following meanings EXCEPT（）.
A.I intend to meet you starboard to starboard
B.I do not intend to hold course and speed
C.I intend to overtake you on your port side
D.I intend to alter my course to port
单项选择题
A 95-meter vessel aground sounds which fog signal? （）
A.A rapid ringing of a bell for 5 seconds every two minutes
B.A whistle signal of one short，one prolonged，and one short blast
C.A prolonged blast of the whistle at intervals not to exceed one minute
D.A rapid ringing of a bell for 5 seconds，preceded and followed by three separate and distinct strokes on the bell
单项选择题
A vessel will NOT show sidelights when（）.
A.underway but not making way
B.making way，not under command
C.not under command，not making way
D.trolling underway