更多"The controlling depth of the river "的相关试题:
[单项选择]The preferred method of controlling external bleeding is by（）.
A. direct pressure on the wound
B. elevating the wounded area
C. pressure on a pressure point
D. a tourniquet above the wound
[单项选择]The governor brake shall be capable of controlling the speed of lowering a fully equipped lifeboat with its complement of persons on board at（）.
A. safe speed only specified
B. not less than 120 feet per minute
C. not more than 120 feet per minute
D. not more than 90 feet per minute
[单项选择]One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by （）.
A. installing rat guards on the mooring lines when in port
B. keeping foods protected and avoiding the accumulation of garbage
C. eliminating possible living spaces for rats when the ship is constructed
D. trapping and/or poisoning the rats
[单项选择]Charted depth is the（）.
A. vertical distance from the tidal datum to the ocean bottom plus the height of the tide
B. vertical distance from the tidal datum to the ocean bottom
C. average height of water over a specified period of time
D. average height of all low waters at a place
[单项选择]An electronic depth finder operates on the principle that（）.
A. radio signals reflect from a solid surface
B. sound waves travel at a constant speed through water
C. radar signals travel at a constant speed through water
D. pressure increases with depth
[单项选择]River currents tend to（）.
A. pick up speed where the channel widens
B. run slower in the center of the channel
C. hug the inside of a bend
D. cause the greatest depth of water to be along the outside of a bend
[单项选择]It is apparent that there was not sufficient depth of water（）and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one.
A. for my vessel crossing safely
B. my vessel is to cross safely
C. for my vessel to cross safely
D. for my vessel's crossing safely
[单项选择]Molded depth is measured from the（）.
A. inside of the shell
B. outside of the shell
C. top of the center vertical keel
D. top of the garboard stake
[单项选择]The depth of the ship below waterline measured vertically to the lowest part of the hull is called （）.
A. trim
B. lean
C. draft
D. tonnage
[单项选择]We took usual steps:sounding the depth, reversing and stopping engine,paying out anchor and 60 fathoms of chain cable in the depth of 12 fathoms.The operation above is（）.
A. berthing
B. searching
C. anchoring
D. picking up pilot
[单项选择]The soundings on the chart are based on the depth of water available at （）.
A. mean low water
B. mean lower low water
C. mean high water
D. mean high water springs
[单项选择]To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
A. the actual depth
B. added to or subtracted from the charted depth
C. multiplied by the charted depth
D. divided by the charted depth
[单项选择]As you approach Old River Control Structure Light you see a flashing amber light. You should（）.
A. navigate as close to the left descending bank as safety permits
B. navigate as close to the right descending bank as safety permits
C. turn into the inflow channel as the bypass is now open
D. slow your engine speed to not more than 5 mph
[单项选择]Given the same water depth and line tension，the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be（）.
A. weaker
B. equal
C. greater
D. indeterminable
[单项选择]We took usual steps:sounding the depth，reversing and stopping engine，paying out anchor and 60 fathoms of chain cable in the depth of 12 fathoms．The operation above is（）.
A. berthing
B. searching
C. anchoring
D. picking up pilot
