ANS:A - Brick

Explanation: All except Brick are suits of cards.

ANS:B - 2 and 4

In order to shorten the written length of an IPv6 address, successive fields of zeros may be replaced by double colons. In trying to shorten the address further, leading zeros may also be removed. Just as with IPv4, a single device's interface can have more than one address; with IPv6 there are more types of addresses and the same rule applies. There can be link-local, global unicast, and multicast addresses all assigned to the same interface.

ANS:C - both (a) and (b)

Sewer pipes typically need to be checked for both minimum flow and maximum flow. Minimum flow ensures that there is sufficient flow to prevent issues such as sediment buildup and blockages, while maximum flow ensures that the pipes can handle peak wastewater flow without overflowing or causing backups. So, the correct answer is "both (a) and (b)."

ANS:C - 2^N

One flip-flop means 2 states and N flip-flops means 2^N states.

ANS:A -

The coefficient of performance (𝐶𝑂𝑃COP) for a reversed Carnot cycle, which operates between two temperature reservoirs 𝑇1T1​ and 𝑇2T2​ (where 𝑇1T1​ is the higher temperature and 𝑇2T2​ is the lower temperature), can be expressed as: 𝐶𝑂𝑃=𝑇2𝑇1−𝑇2COP=T1​−T2​T2​​ In a reversed Carnot cycle, the system acts as a refrigerator or heat pump, transferring heat from a lower-temperature reservoir (the cold reservoir at 𝑇2T2​) to a higher-temperature reservoir (the hot reservoir at 𝑇1T1​). The 𝐶𝑂𝑃COP represents the ratio of the desired effect (heat transfer from the cold reservoir) to the required work input. Therefore, the coefficient of performance for a reversed Carnot cycle is given by 𝑇2𝑇1−𝑇2T1​−T2​T2​​.

ANS:B - India and UAE

'Desert Cyclone 2024' is a collaborative military exercise between India and the United Arab Emirates (UAE), taking place in Rajasthan from January 2 to January 15. The aim is to improve interoperability through knowledge exchange, particularly in urban operations within the region.

ANS:A - Uzbekistan

Uzbekistan chaired the 22nd Meeting of the Council of Heads of State of the Shanghai Cooperation Organisation (SCO) in Samarkand on 15-16 September 2022.