GATE XE topic:ocean-sciences PYQs & Answers — Page 4

Questions 31–40 of 100. Imported answers require independent review unless marked reviewed.

A homogeneous, incompressible, steady ocean of mixed layer depth of 20 m has a velocity gradient −5 × 10⁻⁸ s⁻¹ and −8.3 × 10⁻⁸ s⁻¹ along zonal and meridional directions, respectively. The vertical mass flux (in kg s⁻¹) at the base of the mixed layer of 100 km × 100 km area is __________ × 10⁶ kg s⁻¹ (Density of sea water is 1025 kg m⁻³). (Rounded off to 1 decimal place)

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Wind blows over the ocean surface at a speed of 10 m s⁻¹. Calculate the magnitude of wind stress, in Pa, using bulk formula. (Drag coefficient is 1.4 × 10⁻³ and density of air is 1.3 kg m⁻³) (Rounded off to 3 decimal places)

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Two stations ‘A’ and ‘B’, present at a latitude of 30 °N are separated by a distance of 10 km. If the difference in sea surface height between these two stations is 1 m, what will be the magnitude of geostrophic current velocity in SI units? (Assume the angular velocity of earth is

) (Answer in integer)

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The net water level elevation near the coast arising due to a tropical-cyclone-induced storm is a combination of the following factors __________.

Your answerChoose one option.

astronomical tides, and distant cyclonic storm

wind-induced waves, astronomical tides, and distant cyclonic storm

astronomical tides, coastal currents, and distant cyclonic storm

riverine flow, astronomical tides, and distant cyclonic storm

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The typical speeds of a tsunami wave in water depths of 10 m, 100 m, and 1000 m, respectively, are ______.

Your answerChoose one option.

approximately 100 m s⁻¹, 31 m s⁻¹ and 10 m s⁻¹

approximately 50 m s⁻¹, 75 m s⁻¹ and 100 m s⁻¹

approximately 10 m s⁻¹, 31 m s⁻¹ and 100 m s⁻¹

approximately 100 m s⁻¹, 10 m s⁻¹ and 31 m s⁻¹

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Which classification of tides best represents the west coast of India?

Your answerChoose one option.

Diurnal and Mixed

Semidiurnal and Mixed

only Diurnal

only Mixed

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Consider the following options and pick out the right choice. The solubility of a gas in sea water increases with ________.

Your answerChoose one option.

the increase of temperature, salinity and pressure

the decrease of temperature, salinity and pressure

the increase of temperature, and the decrease of salinity and pressure

the decrease of temperature and salinity, and the increase of pressure

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From the list given below, identify the organism type in the biological pump that takes up carbon dioxide from the atmosphere into the ocean.

Your answerChoose one option.

Zooplankton

Fish

Phytoplankton

Radiolarians

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The amount of CO₂ that can be absorbed ________ when the temperature of seawater decreases.

Your answerChoose one option.

Remains the same

Increases

Decreases

Can either increase or decrease

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The following illustration depicts the circulation pattern in the North Indian Ocean during the southwest (June-August) monsoon. Identify the markers numbered from 1-5 in the illustration and pick out the right choice.

Diagram for Engineering Sciences question 163

Your answerChoose one option.

Great Whirl, 2. East India Coastal Current, 3. East African Coastal Current, 4. Summer (Southwest) Monsoon Current, and 5. West India Coastal Current.

East African Coastal Current, 2. Summer (Southwest) Monsoon Current, 3. Great Whirl, 4. South Equatorial Counter Current, and 5. East India Coastal Current.

Great Whirl, 2. Summer (Southwest) Monsoon Current, 3. West India Coastal Current, 4. Somali Current, and 5. East India Coastal Current.

East African Coastal Current, 2. West India Coastal Current, 3. Somali Current, 4. East India Coastal Current, and 5. South Equatorial Counter Current.

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GATE XE topic:ocean-sciences PYQs

Question 172

Question 173

Question 174

Question 154

Question 155

Question 156

Question 158

Question 159

Question 160

Question 163