Geophysical Fluid Dynamics Quiz with Answers

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Geophysical Fluid Dynamics Online Quiz

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• Test Name: Geophysical Fluid Dynamics MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

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Geophysical Fluid Dynamics

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1 / 40

Which layer of the atmosphere contains the ozone layer?

c. Troposphere

b. Mesosphere

a. Stratosphere

2 / 40

What does the Rossby number represent?

c. Ratio of rotational to Coriolis forces

b. Ratio of gravitational to inertial forces

a. Ratio of inertial to Coriolis forces

3 / 40

The Beaufort scale measures:

c. Earthquake intensity

b. Ocean wave height

a. Wind speed

4 / 40

Ekman transport in the ocean is primarily driven by:

c. Coriolis force

a. Wind stress

b. Gravitational force

5 / 40

The geostrophic wind balances:

c. Gravity and centrifugal force

b. Friction and Coriolis force

a. Pressure gradient force and Coriolis force

6 / 40

Trade winds near the equator are caused by:

a. Differential heating of Earth's surface

b. Presence of high-pressure systems

c. Interaction between land and sea breezes

7 / 40

In geophysical fluid dynamics, 'buoyancy' refers to:

a. Ability of a fluid parcel to rise or fall

c. Measurement of air pressure

b. Force exerted by ocean tides

8 / 40

The direction of ocean currents is primarily influenced by:

b. Tidal forces

c. Atmospheric pressure

a. Earth's rotation

9 / 40

Oceanic circulation is primarily driven by:

c. Earth's rotation

b. Tides

a. Wind

10 / 40

The depth of the thermocline in the ocean is primarily determined by:

b. Salinity gradient

c. Density gradient

a. Temperature gradient

11 / 40

A strong, rotating low-pressure center is characteristic of a:

b. Tornado

c. Squall line

a. Hurricane

12 / 40

The Walker circulation is associated with:

a. Equatorial regions

b. Polar regions

c. Mid-latitudes

13 / 40

Thunderstorms are associated with which type of cloud?

b. Cirrostratus

c. Altostratus

a. Cumulonimbus

14 / 40

Ocean currents' speed is primarily influenced by:

b. Temperature gradient

a. Wind

c. Salinity gradient

15 / 40

The Gulf Stream is primarily caused by:

b. Coriolis effect

c. Seafloor topography

a. Temperature differences between the Gulf of Mexico and the North Atlantic Ocean

16 / 40

Oceanic upwelling is primarily driven by:

c. Coriolis effect

a. Ekman transport

b. Density differences

17 / 40

Gravitational forces propagate which type of waves in the ocean?

c. Tsunamis

a. Surface waves

b. Internal waves

18 / 40

Thunderstorms are primarily caused by:

c. Radiation

b. Advection

a. Convection

19 / 40

The Coriolis effect is caused by:

a. Earth's rotation

c. Ocean currents

b. Atmospheric pressure

20 / 40

A rotating body of water with a calm central area is called:

a. Eddy

b. Gyre

c. Upwelling

21 / 40

The depth of the thermocline in the ocean is primarily influenced by:

a. Temperature

b. Salinity

c. Pressure

22 / 40

El Niño refers to:

a. Climate phenomenon characterized by warm ocean temperatures

c. Cooling of ocean surface waters

b. Sudden increase in atmospheric pressure

23 / 40

Sea breezes are caused by:

b. Coriolis effect

c. Global atmospheric circulation

a. Differential heating of land and sea

24 / 40

_______ determines whether a flow is laminar or turbulent.

a. Reynolds number

b. Rossby number

c. Ekman number

25 / 40

Which atmospheric phenomenon is characterized by a rapid decrease in air pressure and inward spiraling winds?

a. Cyclone

b. Anticyclone

c. Tornado

26 / 40

El Niño is associated with the periodic warming of surface waters in the:

a. Eastern Pacific Ocean

b. Western Pacific Ocean

c. Indian Ocean

27 / 40

What percentage of Earth's surface is covered by oceans?

c. 90%

a. 71%

b. 50%

28 / 40

The Gulf Stream is an example of a:

c. Equatorial current

b. Eastern boundary current

a. Western boundary current

29 / 40

Oceanic gyres are formed due to:

b. Atmospheric convection

a. Coriolis effect

c. Seafloor spreading

30 / 40

Thermohaline circulation is primarily driven by differences in:

b. Coriolis effect

a. Water temperature and salinity

c. Solar radiation

31 / 40

__________ is NOT a fundamental equation of geophysical fluid dynamics.

c. Continuity equation

a. Navier-Stokes equation

b. Bernoulli's equation

32 / 40

Upwelling zones in the ocean are characterized by:

b. Warm surface waters

c. Low biological productivity

a. Nutrient-rich waters

33 / 40

The Antarctic Circumpolar Current is primarily driven by:

b. Trade winds

a. Westerly winds

c. Polar easterlies

34 / 40

The Ekman spiral describes:

a. Vertical structure of wind-driven ocean currents

b. Horizontal structure of atmospheric circulation

c. Horizontal structure of wind-driven ocean currents

35 / 40

The Hadley cell describes atmospheric circulation patterns near the:

b. Polar regions

c. Mid-latitudes

a. Equator

36 / 40

Ocean current speed and direction are influenced by:

b. Temperature

c. Earth's magnetic field

a. Wind

37 / 40

Atmospheric pressure, Coriolis effect, and ______ influence ocean circulation.

b. Wind direction

c. Temperature gradient

a. Salinity gradient

38 / 40

_______ is NOT a type of atmospheric circulation cell.

c. Meridional cell

b. Equatorial cell

a. Polar cell

39 / 40

Weather phenomena primarily occur in the:

c. Mesosphere

a. Troposphere

b. Stratosphere

40 / 40

Which ocean current affects the climate of the eastern coast of Asia?

c. Agulhas Current

a. Kuroshio Current

b. California Current

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