The Volocopter is an electric vertical take-off and landing (eVTOL) aircraft, representing a new class of environmentally friendly rotorcraft as opposed to traditional fuel-powered helicopters.
Which one among the following is successfully tested in Germany recently as world's first green helicopter which is environment friendly and emission free ?
Asked in UPSC CAPF 2014 · Topic: Environment and Sustainable Development (Renewable Energy Sources and Sustainable Energy Solutions)
More Environment and Ecology questions
- Which of the following is/are considered as India's green initiative(s)? 1. National Green Highways Mission 2. R & D for Clean Coal Technologies 3. National Green Corridor Programme Select the correct answer using the code given below.
- What are the advantages of fertigation in agriculture ? Controlling the alkalinity of irrigation water is possible. Efficient application of Rock Phosphate and all other phosphatic fertilizers is possible. Increased availability of nutrients to plants is possible. Reduction in the leaching of chemical nutrients is possible. Select the correct answer using the code given below :
- What is/are the advantage/advantages of zero tillage in agriculture? Sowing of wheat is possible without burning the residue of previous crop. Without the need for nursery of rice saplings, direct planting of paddy seeds in the soil is possible. Carbon sequestration in the soil is possible. Select the correct answer using the code given below:
- In the context of India, which of the following is/are considered to be practice(s) of eco- friendly agriculture ? Crop diversification 1. Legume intensification 2. Tensiometer use 3. Vertical farming 4. Select the correct answer using the code given below :
- Steel slag can be the material for which of the following ? 1. Construction of base road 2. Improvement of agricultural soil 3. Production of cement Select the correct answer using the code given below :
- In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon footprint ? 1. Copper slag 2. Cold mix asphalt technology 3. Geotextiles 4. Hot mix asphalt technology 5. Portland cement Select the correct answer using the code given below :
- What is the use of biochar in farming? 1. Biochar can be used as a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medium, it promotes the growth of nitrogen-fixing microorganisms. 3. When biochar is a part of the growing medium, it enables the growing medium to retain water for longer time. Which of the statements given above is/are correct?
- How is permaculture farming different from conventional chemical farming? 1. Permaculture farming discourages monocultural practices but in conventional chemical farming, monoculture practices are pre-dominant. 2. Conventional chemical farming can cause increase in soil salinity but the occurrence of such phenomenon is not observed in permaculture farming. 3. Conventional chemical farming is easily possible in semi-arid regions but permaculture farming is not so easily possible in such regions. 4. Practice of mulching is very important in permaculture farming but not necessarily so in conventional chemical farming. Select the correct answer using the code given below.