How to practice concept:gradient

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–10 of 15. Imported answers require independent review unless marked reviewed.

Topic practice 15 questionsPage 1 of 2

Question 168

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Which of the following combinations of forces is/are balanced in a cyclostrophic motion?
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Question 163

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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

s

. Which one of the following statements is true about this weather system?
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Question 169

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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?
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Question 155

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Which one of the following feature is NOT necessary for the formation of Indian summer monsoon?
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Question 167

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Consider an atmospheric flow at 45 °N, which is parallel to latitude and isobars. Which of the following is/are true when there is no friction?
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Question 169

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Balance of forces and different types of flows/weather phenomena in the northern hemisphere are given. Match the following:
Balance of forces
Flow type/weather phenomena
P: Balance between pressure gradient force, centrifugal force and Coriolis force in anticlockwise rotation
X: Geostrophic flow
Q: Balance between pressure gradient force and centrifugal force in clockwise/anticlockwise rotation
Y: Cyclones
R: Balance between pressure gradient force and Coriolis force in a uniform flow
Z: Tornado
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Question 157

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The variation in geostrophic winds with height, in particular, at the atmospheric boundary layer, considering the variation in pressure gradient as a function of height, is referred to as ________.
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Question 165

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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
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Question 174

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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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Question 169

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In gradient wind balance, which of the following statement(s) is/are true for flow around a region of low pressure in the northern hemisphere?
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