SSC CHSL 2025 PYQ — Question 92

SSC CHSL - 27 Nov 2025 - Shift 3 • General Awareness • Q92

Which of the following is correct regarding the Harappan drainage system?
I. It was only for royal use
II. It was highly advanced and well planned

Show answer & explanation

Correct answer: B

Explanation

The Harappan Civilization (Indus Valley Civilization) is renowned worldwide for its drainage system.

Analysis of the statements:

Statement 1: The Harappan drainage system was not limited to royal palaces or wealthy homes. It was a public system that connected every home, large and small. Even the smallest homes had their own bathrooms and drains that connected to the main street drain.

Statement 2: This system was highly advanced and well-planned for its time. The drains were covered with brick or stone slabs, and manholes (inspection holes) were installed at regular intervals for cleaning.

Key features of the Harappan drainage system:

Grid system: The city and drains were based on a grid pattern, intersecting each other at right angles (90 degrees).

Sloped drains: The drains were sloped slightly to ensure smooth flow of water.

Construction Materials: Baked bricks and mortar (gypsum) were used to build the drains.

Settling Tanks: Small sumps were built along the drains to collect waste so that the main drain would not become clogged.

Only statement II is correct regarding the Harappan drainage system.