9 航海气象

9 航海气象

9.2 海上气象报告与气象导航

951．When winds of force reach 10-11 in Beaufort Scale，usually we call such winds as ______.

A. Hurricane

B. Breeze

C. Storm

D. Gale

KEY: C

952．The Routing System which aimed at reducing the risk of casualties is called as ______.

A. Traffic Separation Schemes

B. Recommended tracks

C. Precautionary areas

D. Inshore traffic zones

KEY: A

953．______ LOW ELY SLWLY WITH COLD FRONT FM CEN TO 12N 179W AND WARM FROM FM CEN TO 11N 171W．

A. SHLW

B. SCTD

C. OBS

D. SW

KEY: A

954．______ moving rather quickly east expected 150 miles south of Cape Farewell 972 by 160000 GMT．

A. Developed low

B. Developing low

C. Being developed low

D. Low to be developed

KEY: B

955．______ rain means it rains in some parts of the area．

A. Squally

B. Isolated

C. Scattered

D. Occasional KEY: C

956．{On account of} the bad weather，my ETA is amended to read 1830 his on July 15th．A. For the account of B. Because C. Owing to D. For fear of KEY: C

957．A cold front moving in from the northwest can produce ______.

A. thunderstorms，hail，and then rapid clearing

B. increasing cloud cover lasting for several days

C. lengthy wet weather

D. low ceilings with thick cirrus clouds

KEY: A

958．A feature of an inflatable raft which helps keep people stationary in rough weather is ______.

A. lashings on the floor of the raft for the passenger's feet

B. straps from the overhead

C. lifelines on the inside of the raft

D. ridges in the floor of the raft

KEY: C

959．A line on a weather chart connecting places which have the same barometric pressure is called an ______.

A. isotherm

B. isallobar

C. isobar

D. isotope

KEY: C

960．A local wind which occurs during the daytime and is caused by the different rates of warming of land and water is a ______.

A. foehn

B. chinook

C. land breeze

D. sea breeze KEY: D

961．A local wind which occurs during the daytime and is caused by the different rates of warming of land and water is a ______.

A. Foehn

B. Chinook

C. land breeze

D. sea breeze

KEY: D

962．A low，uniform layer of cloud resembling fog，but not resting on the ground，is called

______.

A. cumulus

B. nimbus

C. stratus

D. cirrus KEY: C

963．A mercurial barometer at sea is subject to rapid variations in height (pumping) due to the pitch and roll of the vessel. To avoid this error，measurements of atmospheric pressure at sea are usually measured with a(n) _____.

A. syphon barometer

B. cistern barometer

C. aneroid barometer

D. fortin barometer

KEY: C

964．A microbarograph is a precision instrument that provides a ______.

A. charted record of atmospheric temperature over time

B. charted record of atmospheric pressure over time

C. graphic record of combustible gases measured in an atmosphere

D. graphic record of vapor pressure from a flammable/combustible liquid

KEY: B

965．A millibar is a unit of ______.

A. humidity

B. precipitation

C. pressure

D. temperature KEY: C

966．A sea breeze is a wind ______.

A. that blows towards the sea at night

B. that blows towards an island during the day

C. caused by cold air descending a coastal incline

D. caused by the distant approach of a hurricane

KEY: B

967．A sylphon cell is a part of a ______.

A. maximum thermometer

B. barograph

C. thermograph

D. hygrometer

KEY: B

968．A tropical cyclone has recurved and entered temperate latitudes. In the Northern Hemisphere when a large high pressure system lies north of the storm，what situation may occur?

A. The low may suddenly deepen，and the cyclone intensify and pick up speed.

B. The left semicircle may become the dangerous semicircle.

C. The low and the high may merge and cancel out the weather characteristics of each.

D. The high may force the cyclone to reverse its track.

KEY: B

969．A tropical storm is building strength some distance from your ship. Waves are coming from the east，with periods increasing from 5 seconds to 15 seconds. The swell is from the east. Where was the storm when these new swells were generated?