SSC CGL Tier-I Exam: Science And Research Quiz!

The correct answer is IIT Kanpur. The nanosatellite Jugnu, weighing 3 kg, was designed and developed by IIT Kanpur.

The given answer states that the advantage of a resistive touch screen is its longer lifespan compared to a surface acoustic wave touch screen. This means that the resistive touch screen is more durable and can withstand more usage over time.

UV rays do not belong to the category of ionizing radiation because they have lower energy and longer wavelengths compared to X-rays, alpha rays, and neutrons. Ionizing radiation refers to radiation that has enough energy to remove tightly bound electrons from atoms, creating charged particles called ions. UV rays have enough energy to cause chemical reactions and damage to DNA, but they do not have enough energy to ionize atoms. Therefore, UV rays are considered non-ionizing radiation.

The correct answer is STRaND-1. This CubeSat developed by the University of Surrey's Surrey Space Centre and SSTL contains a smartphone payload. The use of a smartphone in a CubeSat allows for cost-effective and efficient data processing and communication capabilities. STRaND-1 demonstrates the potential of using consumer-grade technology in space missions.

The correct sequence of development of HYV seeds is Breeder seeds — Foundation seeds— Certified seeds. This sequence starts with breeder seeds, which are the initial seeds developed by plant breeders through crossbreeding or selection. These breeder seeds are then used to produce foundation seeds, which are the first generation of seeds produced under controlled conditions to maintain their genetic purity. Finally, certified seeds are produced from the foundation seeds, which are tested and certified to ensure their quality and genetic purity. Therefore, the correct sequence is breeder seeds, foundation seeds, and certified seeds.

If an astronaut were to venture beyond his or her spacecraft into space without wearing the specially designed suit, both 'a' and 'b' would occur. Without the suit, the astronaut would not have the necessary protection to maintain a stable environment for their body fluids, which could lead to them becoming toxic. Additionally, the lack of a suit would also result in a decrease in oxygen intake, as there is no atmospheric pressure or oxygen supply in the vacuum of space. Therefore, both of these consequences would happen if the astronaut went into space without the suit.

Perfluorocarbons (PFCs) are synthetic greenhouse gases that do not occur naturally in the environment. They are created through industrial processes and are commonly used in various applications such as electronics manufacturing and as a heat transfer medium. PFCs have high global warming potentials and can remain in the atmosphere for a long time, contributing to climate change. Unlike other greenhouse gases like nitrous oxide, methane, and carbon dioxide, PFCs are solely a result of human activities and do not have natural sources.

LEDs produce more light per watt than incandescent bulbs. This means that LEDs are more energy-efficient as they convert a higher percentage of electrical energy into light. This advantage makes LEDs a popular choice for lighting applications, as they consume less power and result in lower electricity bills. Additionally, the increased light output per watt allows for brighter illumination while using fewer resources, making LEDs a more sustainable and environmentally friendly lighting option.

Fuel cells have various applications, including residential buildings and airplanes. Fuel cells are a clean and efficient energy source that can be used to power homes and provide electricity for residential buildings. They can also be used in airplanes as an alternative to traditional combustion engines, offering a more environmentally friendly and sustainable option for air travel. Therefore, the correct answer is that fuel cells can be used in both residential buildings and airplanes.

The correct answer is Lithium Ion. Lithium-ion batteries are commonly used in mobile phones due to their high energy density, long lifespan, and lightweight design. These batteries are rechargeable and provide a reliable and efficient power source for mobile devices. They have a higher energy density compared to other types of batteries, allowing them to store more power in a smaller size. Additionally, lithium-ion batteries do not suffer from the memory effect, meaning they can be charged at any time without reducing their overall capacity.

In the process of Reverse Osmosis, high pressure is used to push seawater against a semipermeable membrane. This membrane allows water molecules to pass through while rejecting salt and other impurities. The high pressure helps to overcome the osmotic pressure and facilitate the separation of pure water from the saline solution.

The correct answer is 20% biofuel, 80% petroleum diesel. This means that B20 biodiesel is made up of 20% biofuel and 80% petroleum diesel.

The national vector borne disease control programme focuses on preventing and controlling diseases that are transmitted through vectors such as mosquitoes and flies. Malaria, filaria, and kala-azar are all vector-borne diseases that are included in the programme because they are prevalent in certain regions and pose a significant public health risk. However, polio is not a vector-borne disease as it is transmitted through contaminated food and water or direct contact with an infected person. Therefore, it is not included in the national vector borne disease control programme.

The Indian Association for the Cultivation of Sciences is incorrectly matched with Mumbai. The correct location for the Indian Association for the Cultivation of Sciences is Kolkata, not Mumbai.

The National Mission for a Green India aims to afforest or eco-restore a total area of 20 million hectares. This means that the mission is focused on increasing the forest cover and restoring degraded ecosystems across the country. By targeting such a large area, the mission aims to enhance biodiversity, mitigate climate change, and improve the overall environmental health of India.

The correct answer is Bureau of energy efficiency. The Bachat Lamp Yojana aims to accelerate the shift towards energy-efficient lighting in households. The Bureau of Energy Efficiency, a government agency in India, launched this initiative to promote the use of energy-saving lamps and reduce energy consumption. It is a part of their efforts to enhance energy efficiency and sustainability in the country.

TeV (teraelectronvolt) is a unit of energy commonly used in Particle Physics to measure the energy of subatomic particles. Particle Physics is the branch of physics that studies the fundamental particles and their interactions. Other fields like Nuclear Physics, Astrophysics, and Classical Physics may also deal with energy measurements, but TeV is specifically associated with Particle Physics.

Strontium is the most attractive material for superconductivity because it has been found to exhibit high-temperature superconductivity. This means that it can conduct electricity without resistance at relatively high temperatures, which is a desirable property for practical applications. Mercury is also a superconductor, but it has a lower critical temperature compared to strontium. Rubber and silicon, on the other hand, are not known to exhibit superconductivity.

Babool is not a source for biodiesel because it does not have sufficient oil content. Biodiesel is typically produced from plant oils, and plants with higher oil content are preferred for this purpose. Jatropha, Karanj, and Neem are known to have higher oil content and are commonly used as sources for biodiesel production. However, Babool does not possess the same oil-rich properties, making it unsuitable for biodiesel production.

Direct-to-Home satellite broadcasting, also known as DTH, uses the Ku range for telecasting television signals. The Ku range refers to a specific frequency band used for satellite communication. It is commonly used for broadcasting television signals due to its ability to provide high-quality audio and video transmission. Therefore, the correct answer for this question is Ku range.