GATE XE topic:engineering-sciences PYQs & Answers — Page 125

Questions 1241–1250 of 1772. Imported answers require independent review unless marked reviewed.

A tsunami wave in the ocean is approaching the coast. Assuming g = 10 m s⁻², the correct group speed of the wave at a depth of 1 km is

Your answerChoose one option.

1 m s⁻¹

10 m s⁻¹

100 m s⁻¹

1000 m s⁻¹

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A tornado is in cyclostrophic balance where the horizontal pressure gradient and centrifugal forces balance each other. Consider a tornado with 100 m radius and a tangential velocity of 100 m s⁻¹ at the edge. Assuming air density = 1 kg m⁻³, the magnitude of the pressure-drop between the centre and the edge of the tornado is ______ kg m⁻¹ s⁻².

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While driving south a distance of 1000 km, the temperature outside your car increases from 10 °C to 20 °C. Assuming the air is completely dry, g = 10 m s⁻² and Coriolis parameter = 10⁻⁴ s⁻¹, the vertical gradient of the geostrophic wind (rounded off to 2 decimal places) is ______ m s⁻¹ km⁻¹.

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A westerly wind of 10 m s⁻¹ is blowing at a location in the Pacific Ocean in the northern hemisphere. Assuming density of sea water = 1000 kg m⁻³, Coriolis parameter = 10⁻⁴ s⁻¹ and drag coefficient for sea water = 10⁻⁶, the Ekman transport due to the wind at that location is ______ kg m⁻¹ s⁻¹.

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Mₓ and Mᵧ represent the ocean mass transport in the x and y directions, respectively. Lₓ and Lᵧ are the corresponding east-west and north-south length scales. For a typical equatorial ocean gyre, if the ratio of zonal to meridional mass transport ≈ 10, then Lₓ ≈ ______ Lᵧ.

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Assume that pressure varies exponentially with height:

, where

is the pressure at a height

above the surface,

is the surface pressure, and the scale height

km. Under these conditions, one-fourth of the total mass of the atmosphere lies above a height (rounded off to 1 decimal place) of ______ km above the surface.

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Consider an atmospheric column of depth 300 m at the Earth’s surface with an average temperature of 300 K. If the temperature of the layer rises by ΔT = 10 °C, the layer depth

will increase by Δh. Assuming ΔT/T ≈ Δh/h, air density remains unchanged at 1 kg m⁻³ and g = 10 m s⁻², the change in surface pressure is ______ kg m⁻¹ s⁻².

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Once the team of analysts identify the problem, we __________ in a better position to comment on the issue.

Which one of the following choices CANNOT fill the given blank?

Your answerChoose one option.

will be

were to be

are going to be

might be

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A final examination is the __________ of a series of evaluations that a student has to go through.

Your answerChoose one option.

culmination

consultation

desperation

insinuation

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If MHO = JNP, DK = JEL; and SO = TP, then DC = _____.

Your answerChoose one option.

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GATE XE topic:engineering-sciences PYQs

Question 16

Question 17

Question 18

Question 19

Question 20

Question 21

Question 22

Question 1

Question 2

Question 3