更多"Before the seas get rough, it is a "的相关试题:
[单项选择]When lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.
A. on only the forward falls
B. on only the after falls
C. with a lead of about 45 degrees to the boat
D. from the falls to the main deck of the vessel
[单项选择]Which safety check（s）should be made before letting go the anchor（）.
A. See that the anchor is clear of obstructions
B. See that the chain is all clear
C. See that the wildcat is disengaged
D. All of the above
[多项选择]检查PRA链路和PRA电路状态时，以下哪些描述描述是正确的（）。
A. 0时隙以及16时隙均应该为“未安装”
B. 0时隙以及15时隙均应该为“未安装”
C. PRA中继的电路状态应为“空闲”或“工作”
D. PRA中继的电路状态应为“空闲”或“未安装”
[判断题]Pragmatics is different from semantics in that pragmatics studies meaning not in isolation, but in context.
[多项选择]以下关于PRA描述正确的是（）。
A. PRA是一种用户－网络接口，要求两端设备一个必须做为用户侧，一个必须做为网络侧，才可以正常对接
B. PRA基群速率接口有两种标准：23B＋D和30B＋D
C. D信道主要用于传输呼叫控制信令和维护管理信令
D. C&C08PRA采用的中国国家规范为基于ITU－T制定的各种ISDN标准，与Eurpo-ISDN、NET3、NET5大致兼容
[单项选择]In heavy seas the helmsman should steer the survival craft（）.
A. into the seas
B. broadside to the seas
C. in the same direction as the seas
D. in a series of figure-eights
[单项选择]In heavy seas the helmsman should steer the motor lifeboat（）.
A. into the seas
B. broadside to the seas
C. in the same direction as the seas
D. in a series of figure-eights
[单项选择]Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane several hundred miles from your location? （）
A. A long swell from an unusual direction
B. A lengthy lull in the wind and seas
C. Large seas coming from different directions
D. A brisk chop from the southeast
[单项选择]When the period of beam seas equals the natural rolling period of a vessel，what will most likely occur?（）
A. Excessive pitching
B. Excessive yawing
C. Excessive rolling
D. No change should be evident
[单项选择]In heavy seas you decide to heave to. The lifeboat should be（）.
A. brought to a position with the stern into the seas
B. allowed to take its own head
C. brought to lay in the trough
D. brought bow into the seas
[单项选择]A vessel is fishing at anchor on the high seas. Which of the following day signals should she display if she has gear extending out over 150 meters horizontally from the vessel?（）.
A. A black ball in the forepart of her vessel
B. A black double frustum of a cone
C. A basket where best seen
D. A black cone point upwards
[单项选择]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
[单项选择]When anchoring a small sailing vessel in rough weather，the best anchor line would be composed of（）.
A. chain-wire
B. chain-manila
C. chain-nylon
D. all chain
[单项选择]Conditions for crossing a rough bar are usually best at （）.
A. low water slack
B. high water slack
C. high water ebb
D. high water flood
[单项选择]UAP3300的PRA中继一般使用E1的哪个时隙传送信令（）。
A. 0
B. 1
C. 16
D. 32
[单项选择]When ship navigating in rough sea, the first measure taken by the chief engineer to prevent the overload should be（）
A. cleaning fuel oil, lubricating oil and seawater filter
B. reducing fuel feeding of the main engine appropriately or reducing the pitch angle of propeller
C. using low sea chest
D. closing the skylight and the ventilation opening, which doesn’t affect the normal work of equipments
[单项选择]When ship navigating in rough sea, the correct operation is （）
A. navigating with a low diesel engine speed
B. navigating with a stable diesel engine speed
C. increasing the efficiency of propeller
D. increasing fuel injection
[判断题]PRA不仅是一种风险评价方法，而且可以作为一种风险管理技术。
[单项选择]UAP3300的PRA中继一般使用E1的哪个时隙传送同步时钟（）。
A. 0
B. 1
C. 16
D. 32
