Through integration with BHASHINI, how many languages does the revamped UIDAI website currently support?

The correct answer is Kolkata. The day-long stakeholders conference named Aadhaar Samvaad was held there, it coincided with the seventeenth Aadhaar Day, and more than six hundred policy makers, industry leaders, technocrats and professionals took part in it. The Minister of State who was chief guest also spoke about the benefits Aadhaar would bring to the people of West Bengal, which further fixes the location of the event. Option A, Bengaluru, is a major technology centre but was not the venue on this occasion. Option C, Hyderabad, likewise hosts many technology events but not this one. Option D, New Delhi, is where UIDAI has its headquarters, which makes it a tempting choice, yet the conference being reported was deliberately taken to the eastern region. Candidates should tie the five launches to Kolkata.

The correct answer is the Department of Food and Public Distribution and the National Informatics Centre. The three bodies together launched a consent-based and contactless face authentication option for the electronic Public Distribution System, giving beneficiaries an additional way to authenticate themselves in situations where fingerprint authentication may be difficult, and allowing States and Union Territories to fold the facility into their own ration distribution systems. Option A names the payments organisation and the central bank, neither of which runs the ration system. Option C names the agency that handles foodgrain procurement and storage and a service delivery company, which are not the partners named in this launch. Option D names the telecom department and a telecom operator, which have no role in this particular initiative. The pairing worth memorising is UIDAI with the food distribution department and the informatics centre.

The correct answer is a new Aadhaar-linked payment bank, because no such launch was announced. The five initiatives were face authentication for the electronic Public Distribution System, the SWIK Portal in its second version, the framework allowing smaller entities to use the authentication infrastructure of an existing agency, a token management system for visitors to state and regional offices, and the redesigned website of the authority. Option A is therefore among the launches, since the portal streamlines approvals under the framework for authentication in good governance. Option B is also among them, as it removes the need for low-volume users to build their own authentication set-up. Option C is likewise one of the five, meant to ease the experience of residents visiting offices. Only option D falls outside the list.

The correct answer is less than 200 milliseconds. The platform is being designed around high sensitivity, low power consumption, a miniaturised form and intelligent signal processing, and among its stated design targets is a response time below 200 milliseconds so that it suits applications requiring rapid detection and monitoring, such as leak detection in refineries and piped natural gas networks. Option A is ten times faster than the stated target and is not the figure given. Options C and D describe far slower responses, which would be of little use where a gas leak has to be flagged instantly. The sensor package is separately designed to be smaller than 25 mm by 25 mm by 15 mm, which allows battery-operated and embedded deployment, so do not confuse the size figures with the timing figure.

The correct answer is Nagpur. The agreement was signed with Multi Nano Sense Technologies Private Limited of Nagpur, Maharashtra, which is developing an indigenous MEMS TCDIR gas sensor along with a CMOS analogue front-end system-on-chip platform for compact multi-gas sensing. Option A, Pune, is also in Maharashtra and hosts a large electronics and engineering industry, which makes it a plausible guess, but it is not the company's base. Options C and D, Hyderabad and Bengaluru, are major deep-technology and semiconductor design hubs, so they too look convincing, yet neither is the location named in the agreement. Candidates should remember the state along with the city, because questions on such agreements often ask which state the beneficiary firm belongs to.