Daily Current Affairs (MCQ) | Date 06.06.22

Q1. Consider the following statements

1. Recently, the world’s first fishing cat census is done in Chilika
2. This is the world’s first population estimation of the fishing cat done outside the protected area network

Which of the above statements is/are correct?

1. 1 only
2. 2 only
3. Both 1 and 2
4. Neither 1 nor 2

Answer (c)

Explanation:

World’s first fishing cat census done in Chilika

The Chilika Lake, Asia’s largest brackish water lagoon, has 176 fishing cats, according to a census done by the Chilika Development Authority (CDA) in collaboration with the Fishing Cat Project (TFCP). This is the world’s first population estimation of the fishing cat done outside the protected area network.

‘Participatory spirit’

1. It was truly participatory in spirit since local fishermen and villagers of Chilika were the primary participants in this exercise.
2. The CDA said the globally threatened cats are found in wetlands in major South and Southeast Asian river basins starting from the Indus in Pakistan till the Mekong in Vietnam and in Sri Lanka and They are found in 10 Asian countries but have stayed undetected in Vietnam and Java for the last decade or so.

Q2. Consider the following statements

1. India has achieved the target of 10% ethanol blending in petrol
2. India seeks to achieve 20% blending by 2025-26

Which of the above statements is/are correct?

1. 1 only
2. 2 only
3. Both 1 and 2
4. Neither 1 nor 2

Answer (c)

Explanation:

10% ethanol blending goal met, says PM

1. India has achieved the target of 10% ethanol blending in This had led to a reduction of 27 lakh tonnes of carbon emissions and saved foreign exchange worth ₹41,000 crores.
2. Farmers earned ₹40,600 crore in the past eight years due to increasing in ethanol blending.
3. Earlier the government made public the “Road map for ethanol blending in India, 2020-25”, which laid out a pathway for achieving 20% ethanol blending by 2025-26.

Q3. Consider the following statements about the Electric Vertical Take off and Landing (eVTOL) aircraft

1. An eVTOL aircraft is one that uses electric power to hover, take off, and land vertically
2. It is “a runway independent technological solution” for the globe’s transportation needs
3. Most eVTOLs also use what is called distributed electric propulsion technology

Which of the above statements is/are correct?

1. 1 and 2 only
2. 1 and 3 only
3. 2 only
4. 1, 2 and 3

Answer (d)

Explanation:

The status of eVTOL: a soon to be reality?

1. The Government of India is exploring the possibility of inviting manufacturers of Electric Vertical Take off and Landing (eVTOL) aircraft to set up base in India.
2. An eVTOL aircraft is one that uses electric power to hover, take off, and land This is a technology that has grown on account of successes in electric propulsion based on progress in motor, battery, fuel cell and electronic controller technologies and also fuelled by the need for new vehicle technology that ensures urban air mobility (UAM).
3. Most eVTOLs also use what is called as distributed electric propulsion technology which means integrating a complex propulsion system with the There are multiple motors for various functions; to increase efficiency, and to also ensure safety.
4. Thus, eVTOL is one of the newer technologies and developments in the aerospace industry. The demand will be on account of green energy and noise-free aircraft, cargo- carrying concepts and the need for new modes of transport.
5. It is “a runway independent technological solution” for the globe’s transportation needs.

What are the challenges?

1. As the technology so far is a mix of unpiloted and piloted aircraft, the areas in focus include “crash prevention systems”. These use cameras, radar, GPS (global positioning system) and infrared scanners.
2. There are also issues such as ensuring safety in case of powerplant or rotor Aircraft protection from cyberattacks is another area of focus.
3. A third area is in navigation and flight safety and the use of technology when operating in difficult terrain, unsafe operating environments and also bad weather.

Q4. Consider the following statements about the Diamond Nuclear Voltaic (DNV) technology

1. This technology converts nuclear waste into electricity
2. The microscopic diamonds have extremely good head conductance

Which of the above statements is/are correct?

1. 1 only
2. 2 only
3. Both 1 and 2
4. Neither 1 nor 2

Answer (c)

Explanation:

“Diamond Nuclear Voltaic (DNV) technology”

1. It uses minute amounts of carbon-14 nuclear waste encased in layered industrial diamonds to create self-charging batteries.
2. Researchers are developing a new battery-powered by lab- grown gems made from reformed nuclear waste. If it works, it will last thousands of years.

   

Q5. Tiangong space station is launched by

1. China
2. South Korea
3. Japan
4. North Korea

Answer (a)

Explanation:

China marks new space milestone

1. Three Chinese astronauts docked at the country’s space station Tiangong, the state broadcaster said, marking a new milestone in Beijing’s drive to become a major space power.
2. The trio blasted off in a Long March-2F rocket from the Jiuquan launch centre in northwestern China’s Gobi desert.
3. The team is tasked with “completing in-orbit assembly and construction of the space station”, as well as “commissioning of equipment” and conducting scientific experiments.
4. Tiangong, which means “heavenly palace”, is expected to become fully operational by the end of the year.