Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 30 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace EMT 205 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions
Do not waste time on a question you don’t know
Move as fast as possible and starting with questions that don’t have calculation first to save time
Always crosscheck
Don’t be in a hurry to submit, you are not in a competition
Don’t be scared. Getting an A is easy
Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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EMT 205

1 / 40

1. The Southern Ocean was officially recognized as a separate ocean in:

A. 2000

B. 1985

C. 2015

D. 1995

2 / 40

2. The average depth of the world oceans is approximately:

A. 7,450 m

B. 3,700 m

C. 5,500 m

D. 10,542 m

3 / 40

3. The Southern Ocean is uniquely defined by:

A. Water surrounding Antarctica up to 60° S

B. A complete lack of currents

C. The shallowest average depth

D. The absence of salinity variations

4 / 40

4. Ocean currents like the Gulf Stream influence:

A. Reduced salinity in equatorial regions

B. Nutrient depletion in polar regions

C. The formation of oceanic trenches

D. Global heat transport and climate

5 / 40

5. Ocean density is directly proportional to:

A. Dissolved oxygen concentration

B. Salinity and temperature

C. Salinity and pressure

D. Temperature and pressure

6 / 40

6. The property of seawater that influences its electrical conductivity is:

A. High oxygen content

B. The presence of dissolved salts

C. Temperature exclusively

D. Alkalinity levels

7 / 40

7. Chlorinity is defined as:

A. The mass of halides expressed as Cl- precipitated from 1 kg of seawater

B. The total amount of salts in a liter of seawater

C. The ionic strength of seawater

D. The ratio of sodium to chloride in seawater

8 / 40

8. The Indian Ocean is distinctive because:

A. It is mostly enclosed to the north

B. It contains the deepest oceanic trench

C. It is surrounded by ice

D. It is the largest ocean by surface area

9 / 40

9. The most abundant dissolved gas in seawater that influences marine life is:

A. Carbon dioxide

B. Nitrogen

C. Methane

D. Oxygen

10 / 40

10. The most accurate method of determining salinity is:

A. Use of hydrometers

B. Conductivity meters

C. Boiling off all water

D. Evaporation method

11 / 40

11. Ice floats on seawater because:

A. Seawater lacks dissolved solids

B. It has higher salinity than water

C. Pressure increases at freezing points

D. Water density decreases below 4°C

12 / 40

12. The buffering effect of seawater is mainly due to the presence of:

A. Chlorine gas

B. Phosphate ions

C. Sodium ions

D. Carbonate-bicarbonate system

13 / 40

13. The oxygen minimum zone in the ocean occurs due to:

A. Increased carbon dioxide emissions

B. Rapid oxygen consumption by respiration and decomposition

C. High photosynthetic activity

D. Excessive mixing of surface and bottom waters

14 / 40

14. The salinity range in most oceans and seas is typically:

A. 28-32%

B. 20-25%

C. 32-38%

D. 40-45%

15 / 40

15. Seafog is formed when:

A. Cold air flows over warm water

B. Warm damp air passes over a cold sea surface

C. High winds reduce surface temperature

D. Humidity levels drop significantly

16 / 40

16. The solubility of gases in seawater decreases with:

A. Decreasing pressure

B. Decreasing salinity

C. Increasing depth

D. Increasing temperature

17 / 40

17. The surface temperature of the ocean varies mainly due to:

A. Pressure fluctuations

B. Deep-water currents

C. Seasonal and latitudinal changes

D. Salinity differences

18 / 40

18. The Arctic Ocean is characterized by:

A. The greatest depth among all oceans

B. A shallow basin with an average depth of 5,449 meters

C. A completely enclosed system

D. Being the saltiest ocean

19 / 40

19. Oceanic upwelling contributes to:

A. Increased nutrient availability in surface waters

B. Surface water temperature stabilization

C. Decreased salinity near coastal zones

D. Oxygen depletion at the ocean surface

20 / 40

20. The major constituent of seawater contributing most to salinity is:

A. Sodium chloride

B. Potassium

C. Magnesium

D. Sulfate

21 / 40

21. The relationship between chlorinity and salinity is expressed as:

A. Salinity = 0.5 × Chlorinity

B. Chlorinity = 1.5 × Salinity

C. Salinity = 1.80655 × Chlorinity

D. Chlorinity = Salinity ÷ 1.80655

22 / 40

22. The primary sources of dissolved nutrients in seawater are:

A. Photosynthesis and chemical weathering

B. Excreta of animals and decomposed organic matter

C. Volcanic eruptions and evaporation

D. Thermal vents and atmospheric deposition

23 / 40

23. The surface salinity of the ocean is lowest near:

A. Polar regions

B. Equatorial regions with high evaporation

C. Arid coastal zones

D. Regions with significant river inflow

24 / 40

24. Balanced natural resource management focuses on the interaction between:

A. People and natural landscapes

B. Infrastructure and development

C. Markets and economies

D. Government and policies

25 / 40

25. The salinity of brackish water typically falls within the range of:

A. 0–0.5 ppt

B. Greater than 50 ppt

C. 31–50 ppt

D. 0.6–30 ppt

26 / 40

26. Seasonal thermoclines are most prominent in:

A. Middle latitudes with strong seasonal warming

B. Polar regions

C. Coastal estuaries

D. Low latitude tropical areas

27 / 40

27. Which oceanographic branch focuses on marine life distribution and environmental aspects?

A. Physical oceanography

B. Chemical oceanography

C. Geological oceanography

D. Biological oceanography

28 / 40

28. The term “halocline” refers to:

A. Uniform salinity at ocean bottoms

B. A well-mixed surface layer of salinity

C. A zone with large salinity changes below the surface

D. Seasonal salinity variations

29 / 40

29. The tipping thermometer is used to measure:

A. pH levels

B. Conductivity

C. Water salinity

D. Water temperature at selected depths

30 / 40

30. The major factor influencing surface salinity is:

A. Precipitation and evaporation

B. Ocean currents

C. Upwelling

D. Photosynthesis

31 / 40

31. The relationship between salinity and dissolved oxygen concentration is:

A. Directly proportional

B. Constant

C. Not related

D. Inversely proportional

32 / 40

32. The Pacific Ocean occupies approximately what fraction of the Earth’s surface?

A. 1/2

B. 1/4

C. 2/3

D. 1/3

33 / 40

33. In seawater, carbon dioxide plays a key role in:

A. Salinity variations

B. Buffering pH levels

C. Dissolved oxygen replenishment

D. Temperature regulation

34 / 40

34. The tipping thermometer is used to measure temperature at:

A. Intermediate depths

B. Surface levels only

C. All depths simultaneously

D. The ocean floor exclusively

35 / 40

35. The largest ocean by surface area and volume is:

A. Arctic Ocean

B. Pacific Ocean

C. Atlantic Ocean

D. Indian Ocean

36 / 40

36. Conductivity in seawater is primarily measured in units of:

A. Parts per thousand

B. Millisiemens per centimeter

C. Micrograms per liter

D. Grams per kilogram

37 / 40

37. The Atlantic Ocean is noted for:

A. Being fully enclosed in the southern hemisphere

B. Being the shallowest ocean

C. Having the busiest sea route in the world

D. Lacking significant marine life

38 / 40

38. The Gulf Stream influences:

A. Rainfall patterns and oceanic heat transport

B. Formation of estuarine environments

C. Oxygen content in deep-sea zones

D. Nutrient distribution near the surface

39 / 40

39. The major gases dissolved in seawater include:

A. Methane, nitrogen, and argon

B. Oxygen, carbon dioxide, and nitrogen

C. Argon, nitrogen, and carbon dioxide

D. Hydrogen, nitrogen, and oxygen

40 / 40

40. The Mediterranean Sea experiences high salinity primarily due to:

A. High precipitation levels

B. Excess evaporation

C. Rapid thawing of ice

D. Minimal river inflows

Your score is

The average score is 43%

EMT 205 CBT PRACTICE

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