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The tidal range toward the center of an ocean basin with a rotary standing tide is _______ the range at the edges of the basin.


A) smaller than
B) larger than
C) about the same as
D) of longer duration than
E) None of these are correct.

F) None of the above
G) All of the above

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If a narrow coastal basin oscillates with a period that nearly matches the tidal period, near its entrance the basin has _______ amplitude tides and ________ tidal currents.


A) large; small
B) small; small
C) large; large
D) small; large
E) no change in; no change in

F) A) and B)
G) A) and C)

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The co-range lines of a rotary standing tide wave all converge at the ________ point.

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Tidal days are longer than solar days because


A) the moon rotates more slowly than the Earth.
B) the moon rotates more quickly than the Earth.
C) the moon moves in the same direction around the Earth as the Earth revolves on its axis.
D) the moon moves in the rotates in the opposite direction of the Earth.
E) tidal days are not longer than solar days.

F) A) and B)
G) A) and E)

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Diurnal tides are more prevalent at middle latitudes when the tide-raising bodies are


A) at low declination.
B) at high declination.
C) in line with each other.
D) 90 degrees to each other.
E) 180 degrees to each other.

F) A) and B)
G) All of the above

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A tidal pattern of two high tides and two low tides each day is known as a diurnal tidal pattern.

A) True
B) False

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The greatest tidal range occurs farthest from the amphidromic point.

A) True
B) False

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The values of tide corange lines decrease as they move away from the amphidromic point.

A) True
B) False

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The time period between successive new moons is 29.5 days.

A) True
B) False

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In an open-ended embayment connected to the sea (for example, the Bay of Fundy) , how much of the fundamental standing tide wave form is present?


A) One-half the wave
B) The complete wave
C) One-quarter the wave
D) Two waves
E) Four waves

F) A) and E)
G) A) and D)

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Rotary currents progress in a clockwise direction in the northern hemisphere.

A) True
B) False

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A tidal day is


A) 12 hours.
B) 12 hours and 25 minutes.
C) 24 hours.
D) 24 hours and 50 minutes.
E) It depends on the day.

F) A) and E)
G) All of the above

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A spring tide occurs approximately


A) once per week.
B) every two weeks.
C) once per month.
D) once per year.
E) twice per year.

F) B) and C)
G) A) and E)

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Lunar tides are larger than solar tides.

A) True
B) False

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Spring tides are present when the lunar and solar tide waves are in phase with each other.

A) True
B) False

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The typical semidiurnal period of a solar tide according to equilibrium tidal theory is ______ hours, whereas the semidiurnal lunar tidal period is _______ hours.


A) 12.0; 12.4
B) 24.0; 24.8
C) 12.4; 12.0
D) 12.8; 24.0
E) 12.0; 12.0

F) A) and E)
G) All of the above

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The possibility of obtaining large amounts of energy from the tides exists where


A) there are large tidal ranges.
B) there are small tidal ranges.
C) there are narrow channels with swift tidal currents.
D) there are wide channels and slow tidal currents.
E) there are large tidal ranges and there are narrow channels with swift tidal currents.

F) C) and D)
G) A) and B)

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Tide waves have


A) crests at the high-water level and troughs at the low-water level.
B) periods of 24 hours and 50 minutes or 12 hours and 25 minutes.
C) speeds that are constant.
D) crests at the high-water level and troughs at the low-water level, periods of 24 hours and 50 minutes or 12 hours and 25 minutes, and speeds that are constant.
E) crests at the high-water level and troughs at the low-water level and periods of 24 hours and 50 minutes or 12 hours and 25 minutes.

F) A) and B)
G) A) and C)

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Tides


A) are shallow water waves.
B) are progressive waves.
C) rotate in ocean basins.
D) have elliptical water particle orbits.
E) All of these are correct.

F) B) and D)
G) B) and E)

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A rising tide is known as an ebb tide.

A) True
B) False

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