CAPF AC 2020 Q99: Geography – Atmosphere & Climatology

CAPF AC 2020, Paper I (General Ability and Intelligence) · Geography

Which one among the following stations receives maximum rainfall?

Answer: (d) Raipur

Explanation

Rainfall at four cities

How to think: ask where the monsoon reaches with full force.

Raipur lies in the path of the Bay of Bengal rain systems.

Hyderabad and Bengaluru sit in the rain shadow of the Western Ghats.

Delhi is at the far end of the monsoon's journey.

Station	Annual rainfall (approximate)	Why
Raipur	About 1,300 mm	Monsoon depressions from the Bay of Bengal cross Chhattisgarh
Bengaluru	About 970 mm	Rain shadow of the Western Ghats
Hyderabad	About 800 mm	Interior Deccan, rain shadow
Delhi	About 790 mm	Monsoon arrives last and weakened

Rule of thumb for India:

Region	Rainfall
West coast, North-east	Above 200 cm
Eastern India, Chhattisgarh, Odisha	100 to 200 cm
Interior Deccan, Delhi, Punjab plains	50 to 100 cm
Western Rajasthan, Ladakh	Below 50 cm

Answer: (d) Raipur.

(a) Incorrect. Hyderabad is in the dry interior of the Deccan.
(b) Incorrect. Bengaluru gets under 100 cm; it lies in the rain shadow.
(c) Incorrect. Delhi is near the end of the monsoon's path and gets less.
(d) CORRECT. Raipur gets about 130 cm, the most among the four.

Rainfall falls from east to west across north and central India. Chhattisgarh and Odisha: 100 to 200 cm. Interior Deccan and Delhi: 50 to 100 cm.

Eastern India is wetter than the Deccan interior and Delhi.

Choosing Bengaluru because it is in the south and feels rainy.
Forgetting the rain shadow east of the Western Ghats.
Thinking Delhi gets heavy rain because it floods; its yearly total is modest.

Educated guess: Chhattisgarh is the rice bowl of central India. Rice needs heavy rain, so Raipur is the wettest here.

NCERT Class XI Geography — India: Physical Environment (Climate: distribution of rainfall)
India Meteorological Department — Climatological normals of rainfall