船舶水手考试
单选题prolonged blast（）A 短声B 短笛C 长笛D 长声
题目
短声
短笛
长笛
长声
相似问题和答案
第1题：
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound ______.
A.a 2-second blast every 20 seconds
B.a 4-second blast every 20 seconds
C.an 8-second blast every 30 seconds
D.a 10-second blast every 30 seconds
第2题：
prolonged blast（）
- A、短声
- B、短笛
- C、长笛
- D、长声
正确答案:D
第3题：
You are on international waters during a heavy rainstorm and hear a vessel sounding a fog signal of one prolonged blast followed by two short blasts． Which of the following could it be？Ⅰ．A vessel laying submarine cable making way．Ⅱ．A pilot vessel on station at anchor．
A.Ⅰ only
B.Ⅱ only
C.Either Ⅰ or Ⅱ
D.Neither Ⅰ nor Ⅱ
第4题：
one blast，4 to 6 seconds in duration
three blasts，4 to 6 seconds in duration
one continuous blast until you are able to see around the bend
one blast，8 to 10 seconds in duration
第5题：
One blast at one-minute intervals
One blast at two-minute intervals
Two blasts at one-minute intervals
One prolonged and two short blasts at two-minute intervals
第6题：
迟发延续反应（delayed prolonged response）
正确答案: ①炎症时内皮损伤中度；②毛细血管和细静脉内皮损伤；③血管壁通透性升高发生晚；④持续时间长。
第7题：
Second Officer, give one （）(长声).
- A、blast
- B、short blast
- C、prolonged blast
- D、prolonged blasts
正确答案:C
第8题：
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a ______.
A.vessel being towed
B.fishing vessel engaged in trawling
C.vessel at anchor warning you of her location
D.power-driven pilot vessel on station underway
第9题：
2 to 4 seconds
4 to 6 seconds
6 to 8 seconds
8 to 10 seconds
第10题：
vessel being towed
fishing vessel engaged in trawling
vessel at anchor warning you of her location
power-driven pilot vessel on station underway