Engineering Sciences
GATE XE topic:engineering-sciences PYQs
Build your understanding with focused practice from past exam papers.
Questions 711–720 of 1772. Imported answers require independent review unless marked reviewed.
Question 164
Open questionXE-HMCQ2 marksNeeds review
From the following list identify the region that has low chlorophyll and low nutrients.
Your answerChoose one option.
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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 165
Open questionXE-HMCQ2 marksNeeds review
Match the following physical phenomena from the perspective of monsoonal circulation:
Column-1 | Column-2 |
|---|---|
a) Reversal of East-West temperature gradient with seasons | i) Over the tropics |
b) Reversal of North-South temperature gradient with seasons | ii) Indian Ocean |
c) Surface cooling and deepening of mixed layer | iii) Over mid-latitudes |
d) Northward movement of south equatorial current | iv) Arabian Sea |
Your answerChoose one option.
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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 166
Open questionXE-HMSQ2 marksNeeds review
Choose the correct statement(s) in context to Ekman spiral from the following:
Your answerSelect all correct options. You can choose more than one.
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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 167
Open questionXE-HMSQ2 marksNeeds review
Which of the following is/are associated with winter rainfall over India?
Your answerSelect all correct options. You can choose more than one.
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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 168
Open questionXE-HNAT2 marksNeeds review
If the global albedo is increased from 0.3 to 0.4, the global radiative equilibrium temperature (in K) would decrease by ________.
(consider no greenhouse effect, solar constant = 1360 W m⁻² and Stefan-Boltzmann constant = 5.67 × 10⁻⁸ W m⁻² K⁻⁴, rounded 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 169
Open questionXE-HNAT2 marksNeeds review
When a parcel of dry air rises at a rate of 2 cm s
vertically, what should be the rate of heating per unit mass in J s
kg
(due to the radiation, conduction, etc.) in order to maintain the air parcel at a constant temperature?(consider the acceleration due to gravity as 9.8 m s
, rounded off to three decimal places).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 170
Open questionXE-HNAT2 marksNeeds review
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).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 171
Open questionXE-HNAT2 marksNeeds review
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
/C
= 0.71, rounded off to two decimal places).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 172
Open questionXE-HNAT2 marksNeeds review
A cylindrical tank containing water is rotating about the z-axis at a constant angular velocity of 10 rad s
. The schematic of the isobaric surface is shown in the following illustration, where ‘A’ and ‘B’ are two points on the isobaric surface at heights ‘z
’ and ‘z
’, respectively. Assuming the atmospheric pressure to be negligible and no transient flow, estimate the elevation difference in m between ‘z
’ and ‘z
’.(consider r
= 0.5 m, r
= 1.0 m and gravitational acceleration g = 9.8 m s
, rounded off to two decimal places)
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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
Open questionXE-HNAT2 marksNeeds review
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)?Log in to check the answer
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