GATE XE topic:atmospheric-science PYQs & Answers — Page 2

Questions 11–20 of 123. Imported answers require independent review unless marked reviewed.

In a free atmosphere without friction, if the pressure increases by one kilo Pascal eastward across a distance of 200 km, the magnitude of geostrophic flow (in

) is _____. (rounded off to two decimal places)

[Density of air is 1.029

and the Coriolis parameter is

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During which of the following times of the day is the 2 m air temperature usually the lowest at a tropical location?

Your answerChoose one option.

At sunrise

At noon

At sunset

At midnight

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At which of the following locations in the atmosphere is the anvil of a towering cumulonimbus cloud usually located?

Your answerChoose one option.

Top of the surface layer

Top of the boundary layer

Tropopause

Stratopause

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Which one of the following is the main reason why tropical cyclones rarely form over the Bay of Bengal during the summer monsoon season?

Your answerChoose one option.

Strong vertical wind shear.

Weak low-level relative vorticity.

Dry mid-troposphere.

Stable atmosphere.

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Which one of the following is the main cause of the land-sea temperature contrast that drives phenomena like sea breeze and the Indian summer monsoon?

Your answerChoose one option.

Difference in the cloud cover between the land and the sea.

Difference in the albedo between the land and the sea.

Difference in the specific heat capacities between the land and the sea.

Difference in the surface roughness between the land and the sea.

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Accumulated rainfall is often measured in mm. If the density of rain water is 1000 kg m

then, one mm of rain is equal to ______________ kg m

of rain. (in integer).

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Acceleration due to Coriolis force of a water parcel at a location P (67 °E, 20 °N) moving with a speed of 0.35 m s

is ________ × 10

m s

. (Round off to two decimal places)

[Assume the angular velocity of the Earth is 7.3 × 10

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A rotating weather system has a tangential velocity of 100 m s

, diameter of 1 km, and located at a latitude where the Coriolis parameter is 10

. Which one of the following statements is true about this weather system?

Your answerChoose one option.

It is in geostrophic balance.

It is in gradient wind balance.

It is a high-pressure system.

It is in cyclostrophic balance.

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In the figures given below, L and H indicate low and high pressure centers, respectively; PGF, CoF and CeF indicate Pressure Gradient Force, Coriolis Force and Centrifugal Force, respectively; V is Velocity. [The arrows indicate only the directions but not the magnitudes of the forces and velocity.]

Diagram for Engineering Sciences question 169

Which of the following is/are the correct representation(s) of the directions of various forces and velocity in the gradient wind balance in the northern hemisphere?

Your answerSelect all correct options. You can choose more than one.

(i)

(ii)

(iii)

(iv)

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One kg of dry air at 15 °C is isothermally compressed to one-tenth of its initial volume. The work done on the system is ________________ kJ. (Round off to the nearest integer.) [Assume that the gas constant for dry air is 287 × 10⁻⁵ J K⁻¹ kg⁻¹.]

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GATE XE topic:atmospheric-science PYQs

Question 173

Question 154

Question 155

Question 156

Question 157

Question 161

Question 162

Question 163

Question 169

Question 170