Surface winds in the Northern Hemisphere flow: MCQ with Answer and Explanation

Surface winds in the Northern Hemisphere flow:
A. Perpendicular to isobars
B. Parallel to isobars
C. Across isobars towards low pressure
D. Across isobars towards high pressure
Answer: Option C
Solution (By JKSSB Mock Tests)
Surface winds in the Northern Hemisphere flow across isobars towards low pressure due to friction, which reduces the Coriolis force and causes the wind to spiral inward toward the low-pressure center.

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Practice More Climate and Weather Questions

Question #1
A positive phase of the Arctic Oscillation (AO) is associated with:
A. Warmer than normal temperatures in the Arctic
B. Cooler than normal temperatures in the Arctic
C. Lower than normal pressure over the Arctic
D. Higher than normal pressure over the Arctic

Correct Answer: Option C


Explanation:
A positive AO phase is characterized by lower than normal pressure over the Arctic and higher than normal pressure over the mid-latitudes. This tends to confine cold air to the Arctic, leading to milder winters in the mid-latitudes.

This question belongs to: Geography GK Climate and Weather
Question #2
Which of the following is the primary reason for the low rainfall in the Thar Desert?
A. Subtropical high pressure
B. Distance from sea
C. Rain shadow effect
D. All of the above

Correct Answer: Option D


Explanation:
The Thar Desert receives low rainfall due to its location in the rain shadow of the Aravalli Range, the influence of the subtropical high-pressure belt, and its distance from the sea.

This question belongs to: Geography GK Climate and Weather
Question #3
What is the name of the phenomenon where the trade winds strengthen and the equatorial currents intensify?
A. La Niña
B. Pacific Decadal Oscillation
C. El Niño
D. Southern Oscillation

Correct Answer: Option A


Explanation:
La Niña is characterized by the strengthening of the trade winds and the intensification of the equatorial currents in the Pacific.

This question belongs to: Geography GK Climate and Weather