GATE XE Atmospheric Science PYQs & Answers — Page 5

Questions 41–50 of 123. Imported answers require independent review unless marked reviewed.

Two balls each of 5 cm in diameter are placed 200 m apart on a horizontal frictionless plane at 45° N. The balls are impulsively propelled directly at each other with equal speeds. What must be the speed in m s

so that the two balls just miss each other?

(consider the value of Ω as 7.29 × 10

rad s

, rounded off to two decimal places).

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A parcel of dry air having an initial temperature of 30 °C at 1000 hPa level is lifted adiabatically. At what pressure (in hPa) its density reduces by half?

(consider the ratio of the specific heat of dry air at a constant pressure to the specific heat of dry air at a constant volume, C

= 0.71, rounded off to two decimal places).

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Consider that there are 295 million vehicles across India and they drive about 12000 km yr

. Each vehicle consumes about 25 km lit

of petrol and the amount of carbon released per litre is 5.5 gm. What is the amount of carbon emitted into the atmosphere in mega ton per year (rounded off to two decimal places)?

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Consider the two parallel isobars separated by a spacing of 250 km at 30° N (air density = 0.70 kg m

, 2Ω = 14.6×10

rad s

) with a pressure gradient of 5 hPa. Calculate the geostrophic velocity in m s

(rounded off to two decimal places).

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The figure shows a schematic of vertical profiles of concentrations of two gases P and Q in the atmosphere near a coastal state. The correct pair representing P and Q, respectively, is

Diagram for Engineering Sciences question 154

Your answerChoose one option.

water vapor and CO₂

O₃ and water vapor

CO₂ and O₃

N₂ and O₂

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A form of momentum equation for an incompressible fluid is

(i) (ii) (iii) (iv)

where

is density,

is velocity,

is time,

is pressure,

is viscosity and

represents body force per unit volume. The dimension of term (iii) is

(M, L and T stand for mass, length and time, respectively).

Your answerChoose one option.

[L]¹ [T]⁻²

[M]¹ [L]⁻² [T]⁻²

[M]¹ [L]⁻¹ [T]⁻²

[M]¹ [L]¹ [T]⁻¹

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Tropical cyclones usually do not form close to the Equator primarily because

Your answerChoose one option.

sea surface temperature at the Equator is too cold.

beta effect dissipates clouds.

Coriolis force is too weak.

vertical shear of the zonal wind is weak.

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Which one of the following statements is correct regarding the dominant energy balance in the troposphere in a tropical convergence zone?

Your answerChoose one option.

Shortwave heating balances longwave radiative cooling.

Compressional heating balances radiative cooling.

Radiative cooling balances heating due to viscous dissipation of kinetic energy.

Condensational heating balances adiabatic cooling.

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Which one of the following processes is primarily responsible for the poleward transport of energy in the midlatitude troposphere?

Your answerChoose one option.

atmospheric tides

baroclinic waves

gravity waves

turbulence in the boundary layer

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Which of the following feature(s) characterize the seasonal mean flow in the upper troposphere near 200 hPa level over the Tibetan Plateau during the boreal summer?

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

cyclonic

anticyclonic

irrotational

divergent

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GATE XE Atmospheric Science PYQs

Question 170

Question 171

Question 173

Question 174

Question 154

Question 155

Question 156

Question 158

Question 159

Question 160