通常，不要用全套绳饶鼓轮超过3-4圈
51．The ideal rope for stoppers should satisfy the following requirements except that _____.
A. The stopper should be of synthetic fibre rope B. The size of the stopper should be as large as possible C. The stopper should be of low stretch material D. The stopper should be very flexible
答案：B阻挡器的理想的绳索需要满足以下要求中除了阻挡器的尺寸尽可能大
52. Usually, do not use more than _____ complete rope turns around the drum. A. 1-2 B. 3-4 C. 5-6 D. 7-8 答案：B
通常，不要用全套绳饶鼓轮超过3-4圈
53．If you have steel wire ropes leading in the same direction with other ropes, which will take the most of the load? A. Steel wire rope B. Manila C. Nylon
D. Polypropylene rope 答案：A
如果你让钢丝绳和别的绳索导向同一个方向，哪个承担的负荷最大？钢丝绳
54. Snapback is a serious danger when we are handling_____. A. Wire rope B. Nylon ropes only C. Synthetic ropes D. Manila
答案：C当我们操作人造纤维绳的时候急速弹会非常危险 55. Choose one statement which is correct according to safe mooring practice.
A. Synthetic rope can be used as a stopper on wires B. A safety helmet without chinstraps is allowed C. ……. have the same elongation as used ropes
D. Two or more lines leading in the same direction should always be of the same material.
答案：D根据安全系泊操练选择一项正确的陈述 56. What does a navigator who uses an ECDIS require?
A. Good navigational knowledge and a professional job attitude
B. Good computer knowledge
C. Good system knowledge D. Nothing special
答案: A使用电子海图显示和信息系统的航海者的要求是什么？良好的航海知识和专业的工作态度
57. When own ships position input to ECDIS wrong, what is the result?
A. Nothing
B. ECDIS will give warning
C. ECDIS will automatically be switched off
D. Position, range and bearing taken on the ECDIS will be wrong
答案：D当把拥有的船位错误输入电子海图显示与信息系统，结果会怎么样？显示在电子海图显示与信息系统上的船位，航程，方位将错误
58. What should you avoid when receiving work order? A. Having other people help you with your work B. Swearing
C. Wasting time on having procedures explained D. Misunderstandings
答案：D当收到工作命令时应避免什么？误解 59. What kind of information dose the fire plan contain? A. Fire alarm signal, fire instruction and your assignment
B. location of firefighting equipment onboard C. How to use firefighting equipment onboard D. Information on how handle different types of fires 答案：B消防计划包括哪些种类的信息？船上消防设备的位置
60. Do you need to measure oxygen levels before entering an enclosed space? A. Yes, always B. No
C. Not if you measure for toxic gases
D. Yes, but not if you ventilate properly first for 24 hours 答案：A当你进入一个密闭空间前你需要测量氧气浓度吗？是的，总是这样
61. What is the most important treatment concerning a foreign body in the eye?
A. Rinsing of the eye B. …… anaesthetic
C. Wring the eye-lid to prevent blinking D. Close the eye for a while
答案：A关于眼睛里的杂物最重要的处理方法是什么？清洗眼睛
62. What is the meaning of UEL?
A. Upper exposure level B. Upper explosion level C. Upper explosive level D. Upper evaporation level 答案：C
UEL的意思是什么？爆炸上限
63. In which way may intake of poisoning material not occur? A. By inhaling
B. By skin penetrating and skin absorbing C. By swallowing D. By protective measures
答案：D哪一种方法不会使有毒物质进入的情况发生？通过保护措施 64. What is OPA 90?
A. Oil Production Act of 1990 B. ore Pollution Act of 1990 C. Oil Pollution Act of 1990 D. Ore Production Act of 1990
答案：C什么是邻苯二甲醛90？1990油污法案 65. What is the maximum oxygen percentage allowed in a tank? A. 12% B. 6%