UPSC Daily Quiz for 31ˢᵗ July 2026

1) With reference to Chandrayaan-5 (LUPEX), consider the following statements:

1. It is a joint lunar exploration mission of ISRO and JAXA.
2. The mission aims to investigate the lunar south polar region for water ice and subsurface volatiles.
3. The rover is being developed by ISRO, while the lander is being developed by JAXA.

Which of the statements given above are correct?

2) Which of the following factors make cloudbursts particularly difficult to forecast in mountainous regions?

1. Their highly localized and short-lived nature.
2. Radar blind spots created by complex terrain.
3. Limited density and coverage of Automatic Weather Stations (AWSs).

Select the correct answer using the code below.

3) With reference to NavIC, consider the following statements:

1. It was originally known as the Indian Regional Navigation Satellite System (IRNSS).
2. It provides an open Standard Positioning Service (SPS) and an encrypted Restricted Service (RS).
3. The original constellation was designed to consist of four Geostationary and three Geosynchronous satellites.

Which of the statements given above are correct?

4) Consider the following pairs:

How many of the above pairs are incorrectly matched?

5) With reference to the lunar south polar region, consider the following statements:

1. It contains permanently shadowed regions (PSRs) where water ice may exist.
2. Continuous sunlight throughout the year makes it an ideal location for lunar exploration.
3. The presence of water ice could support future long-duration human missions.

Which of the statements given above are correct?