ANS:A - His father said, "Go to your room and study."

No answer description is available. 

ANS:A - 1

No answer description is available. Let's discuss.

ANS:D - all the above.

Answer D is correct.

1. Alcohol and chloroform has a low density and viscosity.
2. The mobile liquid is termed for low viscosity.
3. The low freezing point stands for lower (higher -ive) temperature for freezing.

ANS:A - True

The induction principle works only in ac currents.

ANS:A - Bus topology

Ethernet is the most widely used LAN network. Ethernet uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection).

The two possible topologies for Ethernet are: bus and star. (so the answer can be A & C).

ANS:B - closed.

When starting a centrifugal pump, its delivery valve should typically be closed. Here's why:

1. Preventing Reverse Flow: Keeping the delivery valve closed prevents the backflow of fluid from the discharge side back into the pump when it is not operating. This helps in maintaining prime (ensuring the pump remains filled with fluid) and prevents potential damage to the pump impeller from reverse rotation or water hammer effects.
2. Starting Procedure: The recommended procedure for starting a centrifugal pump is to ensure the pump casing is filled with liquid (primed) before starting the pump. Once the pump is started, it begins to create suction and pressure, which will eventually open the delivery valve once the system reaches operational conditions.
3. Operational Safety: Opening the delivery valve before starting the pump can lead to issues such as loss of prime or damage to the pump due to backflow or sudden pressure surges.

ANS:D - Bangladesh

The Agartala-Akhaura cross-border rail link project is a significant development in the India-Bangladesh relationship. It is expected to significantly boost cross-border trade and connectivity between the two countries. The project will also reduce the travel time between Agartala and Kolkata via Dhaka from 38 hours to around 10 hours. This will make it easier for people to travel between the two countries and will also facilitate the transportation of goods. The inauguration of the Agartala-Akhaura cross-border rail link project is a welcome step and is expected to further strengthen ties between India and Bangladesh.

ANS:A - Election Commission of India (ECI)

ENCORE (Enabling Communications on Real-time Environment) is an in-house software designed by the Election Commission of India (ECI) for complete candidate and election management. It provides a seamless facility for Returning Officers to process candidate nominations, affidavits, voter turnout, counting, results and data management. ENCORE is a significant technological advancement in the field of election management, and it has played a vital role in ensuring the smooth and efficient conduct of elections in India.

ANS:B - National Medical Commission

The National Medical Commission (NMC) is all set to launch its “one nation, one registration platform” for doctors across India. The NMC will unveil a patch pilot of the National Medical Register (NMR) in the next six months, where doctors will be allotted a unique identification number.

ANS:A - Norway

Norway is providing ₹44.7 million of support over three years, until September 2026, to strengthen food security and environmental protection in Uttarakhand through India's 'Hunger Project.' This initiative aims to empower women leaders, improve food security, and safeguard the environment, with a focus on the ecologically sensitive Uttarakhand region, benefiting marginalized households.