Geostrophic wind flows: MCQ with Answer and Explanation

Geostrophic wind flows:
A. Across isobars towards low pressure
B. Parallel to isobars
C. Across isobars towards high pressure
D. Perpendicular to isobars
Answer: Option B
Solution (By JKSSB Mock Tests)
Geostrophic wind flows parallel to isobars when the pressure gradient force and Coriolis force are balanced. This occurs at high altitudes above the friction layer.

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Practice More Climate and Weather Questions

Question #1
What is the name of the phenomenon where there is a sudden, violent downward rush of cold air from a thunderstorm?
A. Funnel cloud
B. Tornado
C. Microburst
D. Macroburst

Correct Answer: Option C


Explanation:
A microburst is a sudden, violent downward rush of cold air from a thunderstorm, capable of producing damaging winds that spread out in all directions.

This question belongs to: Geography GK Climate and Weather
Question #2
Which of the following is NOT a factor affecting the climate of a region?
A. Latitude
B. Altitude
C. Longitude
D. Distance from the sea

Correct Answer: Option C


Explanation:
Longitude does not directly affect climate. The main factors affecting climate are latitude, altitude, distance from the sea (continentality), ocean currents, and wind patterns.

This question belongs to: Geography GK Climate and Weather
Question #3
A positive phase of the Pacific-North American (PNA) pattern is associated with:
A. Drier than normal conditions in the Pacific Northwest
B. Wetter than normal conditions in the southwestern United States
C. Colder than normal temperatures in the Pacific Northwest
D. Warmer than normal temperatures in the Pacific Northwest

Correct Answer: Option D


Explanation:
A positive PNA phase is associated with warmer than normal temperatures in the Pacific Northwest and colder than normal temperatures in the southeastern United States, with a ridge over western North America.

This question belongs to: Geography GK Climate and Weather