【单项选择题】 How is the external flotation bladder of an immersion s...
【单项选择题】 How is the annual rate of change for magnetic variation...
【单项选择题】 How is a safe water mark,that can be passed close abo...
【单项选择题】 How does the effect known as “bank suction” act on a...
【单项选择题】 How does foam extinguish an oil fire?()
【单项选择题】 How does an icebreaker normally free a ship which has ...
【单项选择题】 How does a vessel’s rate of turn change when entering...
【单项选择题】 How does a coast radio station communicating by HF radi...
【单项选择题】 How do you operate a portable CO2 fire extinguisher?(...
【单项选择题】 How do you determine the weight of the vessel that is...
【单项选择题】 How do the height and location of a tug’s towing bitt...
【单项选择题】 How could lashing gear used aboard Ro-Ro vessels be st...
【单项选择题】 How can you estimate the position of a tropical storm’...
【单项选择题】 How can the Coast Guard determine that a crew member i...
【单项选择题】 How are riveted lap joints made watertight?()
【单项选择题】 Hot air can hold().
【单项选择题】 Horizontal subdivision decks forming watertight compartment...
【单项选择题】 High pressure and low pressure alarms must be tested()...
【单项选择题】 High clouds,composed of small white flakes or scaly glo...
【单项选择题】 Hanging a barge off means to().
【单项选择题】 Handholds or straps on the underside of an inflatable l...
【单项选择题】 Halon fire extinguishers are NOT effective when used on...
【单项选择题】 Guide tolerances during elevation of the jack-up rig wi...
【单项选择题】 Great Salt Pond on Block Island is().
【单项选择题】 Good seamanship while towing in heavy weather requires a...
【单项选择题】 Given the same water depth and line tension,the holding...
【单项选择题】 Generally,when lifting an inflatable liferaft back aboard...
【单项选择题】 Generally,what is used to inflate liferafts?()
【单项选择题】 Generally speaking,you should expect to find low atmosph...
【单项选择题】 Generally speaking,in the Northern Hemisphere,when winds...
【单项选择题】 General requirements for a vessel’s radiotelephone statio...
【单项选择题】 General information on enroute weather and climate is fo...
【单项选择题】 Fusible-link fire dampers are operated by().
【单项选择题】 From your position you observe a rotating white and gre...
【单项选择题】 From which type of cloud can a tornado or waterspout d...
【单项选择题】 Freeboard is measured from the upper edge of the().
【单项选择题】 Frapping lines().
【单项选择题】 Forty-five fathoms is marked on the anchor chain by()...
【单项选择题】 Forces within a drilling unit have caused a difference ...
【单项选择题】 For the purpose of training and drills,if reasonable an...
【单项选择题】 For safety reasons,when assistance towing().
【单项选择题】 For pumping the bilges,a 54 foot long “T-Boat”,whi...
【单项选择题】 For optimum stability during jacking operations,mat balla...
【单项选择题】 For means of abandonment of a ship,which type of embar...
【单项选择题】 For H2S detection,sensitized tapes indicate H2S presenc...
【单项选择题】 For an OSV not on an international voyage,an approved ...
【单项选择题】 ()of the following conditions will cause a vessel’s b...
【单项选择题】 ()of my ship’s propeller is very strong.
【单项选择题】 A crack in the deck plating of a vessel may be tempor...
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