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. Seafog is formed when:

A. Cold air flows over warm water

B. High winds reduce surface temperature

C. Warm damp air passes over a cold sea surface

D. Humidity levels drop significantly

2 / 40

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

A. All depths simultaneously

B. The ocean floor exclusively

C. Intermediate depths

D. Surface levels only

3 / 40

3. The tipping thermometer is used to measure:

A. pH levels

B. Water temperature at selected depths

C. Conductivity

D. Water salinity

4 / 40

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

A. High precipitation levels

B. Excess evaporation

C. Minimal river inflows

D. Rapid thawing of ice

5 / 40

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

A. Buffering pH levels

B. Dissolved oxygen replenishment

C. Temperature regulation

D. Salinity variations

6 / 40

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

A. Government and policies

B. Infrastructure and development

C. People and natural landscapes

D. Markets and economies

7 / 40

7. Ocean currents like the Gulf Stream influence:

A. Global heat transport and climate

B. Reduced salinity in equatorial regions

C. Nutrient depletion in polar regions

D. The formation of oceanic trenches

8 / 40

8. The most accurate method of determining salinity is:

A. Boiling off all water

B. Use of hydrometers

C. Evaporation method

D. Conductivity meters

9 / 40

9. The major gases dissolved in seawater include:

A. Argon, nitrogen, and carbon dioxide

B. Oxygen, carbon dioxide, and nitrogen

C. Methane, nitrogen, and argon

D. Hydrogen, nitrogen, and oxygen

10 / 40

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

A. 40-45%

B. 28-32%

C. 20-25%

D. 32-38%

11 / 40

11. Oceanic upwelling contributes to:

A. Increased nutrient availability in surface waters

B. Surface water temperature stabilization

C. Oxygen depletion at the ocean surface

D. Decreased salinity near coastal zones

12 / 40

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

A. Salinity = 0.5 × Chlorinity

B. Salinity = 1.80655 × Chlorinity

C. Chlorinity = 1.5 × Salinity

D. Chlorinity = Salinity ÷ 1.80655

13 / 40

13. The Atlantic Ocean is noted for:

A. Having the busiest sea route in the world

B. Being the shallowest ocean

C. Lacking significant marine life

D. Being fully enclosed in the southern hemisphere

14 / 40

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

A. Grams per kilogram

B. Parts per thousand

C. Millisiemens per centimeter

D. Micrograms per liter

15 / 40

15. The major factor influencing surface salinity is:

A. Precipitation and evaporation

B. Upwelling

C. Ocean currents

D. Photosynthesis

16 / 40

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

A. 1/2

B. 1/4

C. 2/3

D. 1/3

17 / 40

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

A. Sodium chloride

B. Magnesium

C. Sulfate

D. Potassium

18 / 40

18. The solubility of gases in seawater decreases with:

A. Increasing depth

B. Increasing temperature

C. Decreasing pressure

D. Decreasing salinity

19 / 40

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

A. Atlantic Ocean

B. Pacific Ocean

C. Arctic Ocean

D. Indian Ocean

20 / 40

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

A. Volcanic eruptions and evaporation

B. Thermal vents and atmospheric deposition

C. Excreta of animals and decomposed organic matter

D. Photosynthesis and chemical weathering

21 / 40

21. The Southern Ocean is uniquely defined by:

A. A complete lack of currents

B. The shallowest average depth

C. Water surrounding Antarctica up to 60° S

D. The absence of salinity variations

22 / 40

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

A. Nitrogen

B. Oxygen

C. Carbon dioxide

D. Methane

23 / 40

23. Ice floats on seawater because:

A. It has higher salinity than water

B. Pressure increases at freezing points

C. Water density decreases below 4°C

D. Seawater lacks dissolved solids

24 / 40

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

A. 1985

B. 2000

C. 2015

D. 1995

25 / 40

25. Seasonal thermoclines are most prominent in:

A. Low latitude tropical areas

B. Coastal estuaries

C. Polar regions

D. Middle latitudes with strong seasonal warming

26 / 40

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

A. Rapid oxygen consumption by respiration and decomposition

B. Increased carbon dioxide emissions

C. Excessive mixing of surface and bottom waters

D. High photosynthetic activity

27 / 40

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

A. Deep-water currents

B. Salinity differences

C. Seasonal and latitudinal changes

D. Pressure fluctuations

28 / 40

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

A. Sodium ions

B. Phosphate ions

C. Carbonate-bicarbonate system

D. Chlorine gas

29 / 40

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

A. 3,700 m

B. 7,450 m

C. 5,500 m

D. 10,542 m

30 / 40

30. The Arctic Ocean is characterized by:

A. A completely enclosed system

B. The greatest depth among all oceans

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

D. Being the saltiest ocean

31 / 40

31. Chlorinity is defined as:

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

B. The ratio of sodium to chloride in seawater

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

D. The ionic strength of seawater

32 / 40

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

A. Biological oceanography

B. Physical oceanography

C. Geological oceanography

D. Chemical oceanography

33 / 40

33. Ocean density is directly proportional to:

A. Salinity and pressure

B. Salinity and temperature

C. Temperature and pressure

D. Dissolved oxygen concentration

34 / 40

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

A. Arid coastal zones

B. Regions with significant river inflow

C. Equatorial regions with high evaporation

D. Polar regions

35 / 40

35. The Indian Ocean is distinctive because:

A. It is surrounded by ice

B. It is mostly enclosed to the north

C. It contains the deepest oceanic trench

D. It is the largest ocean by surface area

36 / 40

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

A. 31–50 ppt

B. 0.6–30 ppt

C. 0–0.5 ppt

D. Greater than 50 ppt

37 / 40

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

A. Alkalinity levels

B. High oxygen content

C. Temperature exclusively

D. The presence of dissolved salts

38 / 40

38. The term “halocline” refers to:

A. Seasonal salinity variations

B. A zone with large salinity changes below the surface

C. A well-mixed surface layer of salinity

D. Uniform salinity at ocean bottoms

39 / 40

39. The Gulf Stream influences:

A. Rainfall patterns and oceanic heat transport

B. Formation of estuarine environments

C. Nutrient distribution near the surface

D. Oxygen content in deep-sea zones

40 / 40

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

A. Inversely proportional

B. Not related

C. Directly proportional

D. Constant

Your score is

The average score is 43%

EMT 205 CBT PRACTICE

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