Navigation General General Ocean Questions 1 855 Ref: Ocean, Breakers, Flat Slope B The chart of a beach area shows a very flat slope to the underwater beach bottom. What type of breakers can be expected when trying to land a boat on this beach? A. Surging C. Plunging B. Spilling D. Converging 2 856 Ref: Ocean, Breakers, Steep Slope A The chart of a beach area shows a very steep slope to the underwater beach bottom. Which type of breakers can be expected when trying to land a boat on this beach? A. Surging C. Spilling B. Converging D. Plunging 3 688 Ref: Ocean, Current, Cause C Ocean currents are well defined and __________. A. create large waves in the direction of the current B. change direction 360° during a 24 hour period C. remain fairly constant in direction and velocity throughout the year D. are characterized by a light green color 4 1243 Ref: Ocean, Current, Cause B The two most effective generating forces of surface ocean currents are __________. A. temperature and salinity differences in the water B. wind and density differences in the water C. water depth and underwater topography D. rotation of the Earth and continental interference 5 589 Ref: Ocean, Current, Circulation A In the Northern Hemisphere the major ocean currents tend to flow __________. A. clockwise around the North Atlantic and North Pacific Oceans B. clockwise or counterclockwise depending on whether it is warm or cold current C. counterclockwise except in the Gulf Stream D. counterclockwise around the North Atlantic and North Pacific Oceans 6 305 Ref: Ocean, Current, Agulhas A As the South Equatorial Current approaches the east coast of Africa, it divides with the main part flowing south to form the warm __________. A. Agulhas Current C. Benguela Current B. Canary Current D. Madagascar Current 7 721 Ref: Ocean, Current, Agulhas C On an Atlantic Ocean voyage from New York to Durban, South Africa, you should expect the Agulhas Current to present a strong __________. A. offshore set B. onshore set C. head current D. fair or following current 8 714 Ref: Ocean, Current, Benguela B On a voyage from Cape Town to London, the favorable ocean current off the coast of Africa is the __________. A. Canary Current B. Benguela Current C. Agulhas Current D. South Atlantic Current © 2014 GPSmith. www.decklicenseprep.com 1 All rights reserved Navigation General General Ocean Questions 9 838 Ref: Ocean, Current, Benguela C The Benguela Current flows in a __________. A. SW'ly direction along the NW coast of Africa B. S'ly direction off the East Coast of Australia C. NW'ly direction along the SW coast of Africa D. SW'ly direction along the SE coast of Greenland 10 1680 Ref: Ocean, Current, Benguela D Which current would you encounter on a direct passage from London, England, to Cape Town, South Africa? A. Falkland Current C. Norway Current B. Brazil Current D. Benguela Current 11 840 Ref: Ocean, Current, Brazil B The Brazil Current flows in which general direction? A. Northwesterly C. Southeasterly B. Southwesterly D. Northerly 12 1372 Ref: Ocean, Current, California D What current flows southward along the west coast of the United States and causes extensive fog in that area? A. Davidson Current C. Alaska Current B. North Pacific Current D. California Current 13 715 Ref: Ocean, Current, Canary B On a voyage from Halifax, N.S., to Dakar, West Africa, the Canary Current will __________. A. set the vessel to the left B. set the vessel to the right C. offer resistance in the form of a head current D. furnish additional thrust in the form of a fair or following current 14 618 Ref: Ocean, Current, Equatorial Counter C In which month will the equatorial counter current be strongest? A. January C. August B. April D. October 15 1192 Ref: Ocean, Current, Equatorial Counter B The set of the equatorial countercurrent is generally to the __________. A. north C. southwest B. east D. northwest 16 1494 Ref: Ocean, Current, Gulf Stream B What natural feature is responsible for the rather even climate found on the Florida peninsula throughout the year? A. Strong masses of continental air B. The Gulf Stream C. The Bermuda high D. The cool waters of the Sargasso sea 17 989 Ref: Ocean, Current, Humboldt A The Humboldt Current flows in which direction? A. North B. South C. East D. West © 2014 GPSmith. www.decklicenseprep.com 2 All rights reserved Navigation General General Ocean Questions 18 456 Ref: Ocean, Current, Kuroshio B Generally speaking, a ship steaming across the North Pacific from Japan to Seattle is likely to experience __________. A. adverse currents for practically the entire crossing B. favorable currents for practically the entire crossing C. favorable currents in the summer months and adverse currents in the winter months D. variable currents having no significant effect on the total steaming time 19 874 Ref: Ocean, Current, Kuroshio A The current that, in many respects, is similar to the Gulf Stream is the __________. A. Kuroshio C. Oyashio B. California Current D. Benguela Current 20 1717 Ref: Ocean, Current, Kuroshio A Which ocean current is "warm" based on the latitude in which it originates and on the effect it has on climate? A. Kuroshio Current C. Peru Current B. Benguela Current D. California Current 21 863 Ref: Ocean, Current, Labrador B The cold ocean current which meets the warm Gulf Stream between latitudes 40° and 43°N to form the "cold wall" is called the __________. A. North Cape Current C. Greenland Current B. Labrador Current D. North Atlantic Current 22 1679 Ref: Ocean, Current, Labrador C Which current is responsible for the movement of icebergs into the North Atlantic shipping lanes? A. Iceland Current C. Labrador Current B. Baltic Current D. Baffin Current 23 1107 Ref: Ocean, Current, North Equatorial D The north equatorial current flows to the __________. A. east C. southwest B. northeast D. west 24 382 Ref: Ocean, Current, Oyashio D Cold water flowing southward through the western part of the Bering Strait between Alaska and Siberia is joined by water circulating counterclockwise in the Bering Sea to form the __________. A. Alaska Current C. Kuroshio Current B. Subarctic Current D. Oyashio Current 25 604 Ref: Ocean, Current, Sargasso A In the Sargasso Sea there are large quantities of seaweed and no well defined currents. This area is located in the __________. A. Central North Atlantic Ocean C. Western North Pacific Ocean B. Caribbean Sea D. area off the west coast of South America 26 1681 Ref: Ocean, Current, South Atlantic A Which current would you encounter on a direct passage from southern Africa to Argentina, South America? A. South Atlantic B. South Equatorial C. Agulhas D. Guinea © 2014 GPSmith. www.decklicenseprep.com 3 All rights reserved Navigation General General Ocean Questions 27 1205 Ref: Ocean, Current, Speed A The speed of an ocean current is dependent on __________. A. the density of the water C. the presence of a high pressure area near it B. the air temperature D. underwater soil conditions 28 1219 Ref: Ocean, Current, West Wind Drift C The steady current circling the globe at about 60°S is the __________. A. Prevailing Westerly C. West Wind Drift B. Sub-Polar Flow D. Humboldt Current 29 1267 Ref: Ocean, Current, West Wind Drift A The West Wind Drift is located __________. A. near 60°S B. on each side of the Equatorial Current C. in the North Atlantic between Greenland and Europe D. in the South Pacific near 5°S 30 557 Ref: Ocean, Definition, Bore B In some river mouths and estuaries the incoming high-tide wave crest overtakes the preceding low-tide trough. This results in a wall of water proceeding upstream, and is called a __________. A. seiche C. boundary wave B. bore D. surge 31 1109 Ref: Ocean, Definition, Continental Shelf B The ocean bottom that extends from the shoreline out to an area where there is a marked change in slope to a greater depth is the __________. A. abyssal plain C. borderland B. continental shelf D. offshore terrace 32 1783 Ref: Ocean, Definition, Coriolis C Which statement(s) concerning the effect of Coriolis force on ocean currents is(are) correct? A. The deflection of the current is to the left in the Northern Hemisphere. B. The Coriolis force is greater in the lower latitudes. C. The Coriolis force is more effective in deep water. D. All of the above 33 438 Ref: Ocean, Definition, Fetch B Fetch is the __________. A. distance a wave travels between formation and decay B. stretch of water over which a wave-forming wind blows C. time in seconds required for two crests to pass a given point D. measurement of a wave's steepness 34 1204 Ref: Ocean, Definition, Group Velocity C The speed at which an ocean wave system advances is called __________. A. wave length C. group velocity B. ripple length D. wave velocity 35 1236 Ref: Ocean, Definition, Period B The time interval between successive wave crests is called the __________. A. trough B. period C. frequency D. epoch © 2014 GPSmith. www.decklicenseprep.com 4 All rights reserved Navigation General General Ocean Questions 36 802 Ref: Ocean, Definition, Swell B Swell is the rise and fall of the ocean's surface due to __________. A. fetch C. local storms B. distant winds D. the pull of the moon 37 803 Ref: Ocean, Definition, Swell B Swells that have outrun the storm are produced in the __________. A. left front quadrant C.