更多"We（）a sharp lookout while sailing i"的相关试题:
[单项选择]While loading bulk oil, you notice oil on the water near the bargeWhich of the following actions should you carry out FIRST?（）
A. Search the vessel for leaks
B. Notify terminal superintendent
C. Stop loading
D. Notify the Coast Guard
[单项选择]Bottom blow valves are installed on auxiliary water-tube boilers to （）
A. completely drain the boiler in an emergency
B. prevent sludge from forming in the drum
C. remove floating impurities from the boiler water surface
D. remove settled solids from the water drum
[单项选择]What are the most important reasons for using water fog to fight fires?（）
A. Smothers burning surfaces，organically destroys fuel
B. Cools fire and adjacent surfaces，provides protective barrier
C. Reaches areas not protected by steam or CO2 smothering systems
D. Allows fire to be attacked from leeward，saturates liquid surfaces
[单项选择]The position of the interface between oil and water within the centrifuge is achieved by the use of （）.
A. gravity disc
B. centrifugal bowl
C. a stack of discs
D. main sealing ring
[单项选择]Your vessel has been damaged and is taking on water，but you do not require immediate assistance. You would preface a message advising other vessels of your situation with（）.
A. Mayday-Mayday-Mayday
B. Pan-Pan (3 times)
C. Securite-Securite-Securite
D. SOS-SOS-SOS
[单项选择]Heights are expressed（）meters above mean high water.
A. in
B. on
C. by
D. with
[单项选择]
If a small electric motor is immersed in salt water it should be （）
(1) washed in fresh water
(2) dried in an oven
A. (1) only
B. (2) only
C. both (1) and (2)
D. neither (1) or (2)
[单项选择]It is necessary to remove （） from the cooling water spaces to improve heat transfer.
A. lime
B. frost
C. scale
D. scar
[单项选择]On no account （）proceed without pilot in this water area．
A. the vessel
B. shall not vessel
C. the vessel should
D. should vessel
[单项选择]If the sump（）were to rise this would indicate water leakage into the oil an d an investigation into the cause must be made.
A. temperature
B. viscosity
C. lever
D. level
[单项选择]The engine has broken and the boat is（）on the water.
A. flowing
B. floating
C. drifting
D. sailing
[判断题]do-while循环可以写成while循环的格式。
[单项选择]Vessels should maintain a sharp lookout，especially during December through March，when navigating the right whale’s only known calving grounds which lie off the coasts of（）.
A. Nova Scotia
B. Maine and Massachusetts
C. Georgia and NE Florida
D. California and Mexico
[单项选择]C语言的do-while循环中，循环由do开始，用while结束；而且在while表达式后面的（）不能丢，它表示do-while循环的结束
A. /n
B. “；”
C. “%”
D. “，”
[单项选择]When we write, we must write as（）as we can.
A. careful
B. carefully
C. more careful
D. more carefully
[单项选择]You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn.If you observe the buoy moving aft relative to you，what should you do（）.
A. Increase the rate of turn
B. Decrease the rate of turn
C. Maintain a constant rate of turn
D. Decrease speed
[单项选择]下面的while循环执行了（）次空语句。while（i=3）；
A. 无限次
B. 0次
C. 1次
D. 2次
[单项选择]A line of clouds，sharp changes in wind direction，and squalls are most frequently associated with a(n)（）.
A. occluded front
B. warm front
C. cold front
D. warm sector
