UPSC Current Affairs Quiz — 4 August 2026

1.

When a magnetic field is applied to a magnetorheological fluid, the fluid:

separates permanently into two immiscible chemical layers loses its dispersed particles through irreversible precipitation expands in volume because of heat released by a chemical reaction stiffens within milliseconds and flows again when the field is removed

From: Magnetorheological Fluid: New Indian Wear-Testing Instrument Open full article →

2.

The Vikram Sarabhai Medal is awarded jointly by the Committee on Space Research (COSPAR) and which one of the following?

Department of Science and Technology Indian Space Research Organisation Indian National Science Academy Indian Institute of Astrophysics

From: Vikram Sarabhai Medal: Annapurni Subramaniam Wins 2026 Award Open full article →

3.

The Convention on Wetlands, under which Ramsar Sites are designated, was adopted in 1971 in which one of the following countries?

Iran Switzerland Japan Kenya

From: Glaw Lake: India's 101st Ramsar Site, an Arunachal First Open full article →

4.

The Suramadu Bridge in Indonesia connects the city of Surabaya with the island of:

Bali Lombok Kalimantan Madura

From: Madura Island Ferry Fire: Final Passenger Count Reconciled Open full article →

5.

The MyCall application, relaunched in 2026 to collect user feedback on mobile call quality, is an initiative of which one of the following?

Department of Telecommunications Telecom Regulatory Authority of India Centre for Development of Telematics Ministry of Electronics and Information Technology

From: TRAI MyCall App: Crowdsourcing Mobile Call Quality Feedback Open full article →

6.

A cruise missile differs from a ballistic missile mainly in that a cruise missile:

coasts along a high, unpowered arc after its boost phase ends can be launched only from surface ships and submarines always carries a nuclear rather than a conventional warhead remains powered and guided through most of its flight

From: S8000 Banderol: Russian Cruise Missile Claims Assessed Open full article →

7.

Under the Modified Interest Subvention Scheme, the effective annual rate of interest on a short-term crop loan for a farmer who repays promptly is:

3 per cent 5 per cent 4 per cent 7 per cent

From: Modified Interest Subvention Scheme: Farm Credit Study Open full article →

8.

With reference to Ethiopia, consider the following statements:

1.It is a landlocked country.

2.It shares a land border with South Sudan.

3.The Great Rift Valley passes through its territory.

Select the answer using the code given below:

Only one Only two All three None

From: Ethiopia Landslide: Amhara Monastery Disaster Kills Fourteen Open full article →

9.

Baba Baidyanath Dham, the focus of a large Shravan pilgrimage, is located in which one of the following States?

Bihar West Bengal Jharkhand Odisha

From: Baba Baidyanath Dham: Shravan Pilgrimage at Deoghar Shrine Open full article →

10.

With reference to the Dikhow River, consider the following statements:

1.It rises in the hills of Nagaland, where it is known as the Dikhu.

2.It is a south-bank tributary of the Brahmaputra.

3.It flows through Sivasagar district of Assam.

Select the answer using the code given below:

1 and 2 only 2 and 3 only 1 and 3 only 1, 2 and 3

From: Dikhow River: Sudden Flood Devastates Sivasagar Village Open full article →