Английский язык: Сборник текстов и упражнений для студентов специальности "Судовождение". Пенязь Г.В. - 42 стр.

c) anchored
d) proceeding

45. If the ship rides to two anchors we say that she is:
a) anchored
b) moored
c) under way
d) seeking for shelter

                          Tides and tidal streams
46. The alternate rising and falling of the water is:
a) tidal stream
b) current
c) tide
d) whirlpool

47. Tides are caused by:
a) gale
b) slack water
c) the attraction of the moon and the sun upon the waters of the earth
d) weather condition

48. Tide is:
a) horizontal movement of the water
b) vertical movement of the water
c) rotary movement of the water
d) a current

49. The horizontal movement of the water is called:
a) tide
b) tidal stream
c) current
d) swirl

50. A diurnal tide consist of:
a) one high and one low water a day
b) two high and two low water a day
c) two high waters a day
d) two low waters a day

51. A semidiurnal tide consist of:
a) two high and two low waters a day
b) one high and one low water a day
c) two high waters a day
d) two low waters a day
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