Engineering Sciences
GATE XE year:2022 PYQs
Build your understanding with focused practice from past exam papers.
Questions 171–175 of 175. Imported answers require independent review unless marked reviewed.
Question 171
Open questionXE-HNAT2 marksNeeds review
Consider the atmosphere to be a heat engine, which converts absorbed radiation to kinetic energy of winds. Let the global mean radiation absorbed be 200 Wm⁻². In steady-state, if the global mean kinetic energy dissipation is 10 Wm⁻², then the efficiency of the atmospheric heat engine is ________%. (Round off to one decimal place)
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A drifter on the surface of the ocean forms inertial oscillation. The speed of the drifter is 2 m s⁻¹ and the Coriolis parameter at the latitude is 2×10⁻⁴ s⁻¹. The radius of the inertial oscillation is ______ km. (Round off to the nearest integer)
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 173
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Consider a tornado in cyclostrophic balance. The tangential wind speed at a radial distance of 500 m from the center of the tornado is ______ m s⁻¹, if the pressure gradient at that location in the radial direction is 5 N m⁻³. Assume the density of air to be 1 kg m⁻³. (Round off to the nearest integer)
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Consider two weather stations A and B having the same altitude. Station B is 5 km north of Station A and is always 2 K warmer than Station A. A steady northerly wind blows at 1 m s⁻¹. The change in temperature at Station A in 2 hours is ________ K. (Round off to one decimal place)
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 175
Open questionXE-HNAT2 marksNeeds review
Assume the Earth is in radiative equilibrium with effective radiative temperature of 255 K. If the planetary albedo increases by 0.05, then the effective radiative temperature of the planet will be ______ K. (Round off to the nearest integer)
Given:
Solar constant = 1370 Wm⁻²
Stefan Boltzmann constant = 5.67×10⁻⁸ Wm⁻² K⁻⁴
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