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Type: Prelims Only

  • Indian Missile Program Updates

    Hypersonic Technology Demonstrator Vehicle (HSTDV)

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Ramjet, Scramjet

    Mains level: Indian missile program

    The DRDO has successfully demonstrated the hypersonic air-breathing scramjet technology with the flight test of the Hypersonic Technology Demonstration Vehicle (HSTDV).

    Take note of close dissimilarities between Ramjet and Scramjet engines.

    About HSTDV

    • HSTDV is an unmanned scramjet vehicle with a capability to travel at six times the speed of sound.
    • The scramjets are a variant of a category of jet engines called the air-breathing engines.
    • The ability of engines to handle airflows of speeds in multiples of the speed of sound gives it a capability of operating at those speeds.
    • Hypersonic speeds are those which are five times or more than the speed of sound.
    • The unit tested by the DRDO can achieve upto six times the speed of sound or Mach 6, which is well over 7000 km per hour or around two km per second.

    Its development

    • The DRDO started on the development of the engine in the early 2010s.
    • The ISRO has also worked on the development of the technology and has successfully tested a system in 2016. DRDO too has conducted a test of this system in June 2019.
    • The special project of the DRDO consisted of contributions from its multiple facilities including the Pune headquartered Armament and Combat Engineering Cluster.

    Back2Basics: Ramjet V. Scramjet

    • A ramjet is a form of air-breathing jet engine that uses the vehicle’s forward motion to compress incoming air for combustion without a rotating compressor.
    • Fuel is injected in the combustion chamber where it mixes with the hot compressed air and ignites.
    • A ramjet-powered vehicle requires an assisted take-off like a rocket assist to accelerate it to a speed where it begins to produce thrust.
    • Ramjets work most efficiently at supersonic speeds around Mach 3 (three times the speed of sound) and can operate up to speeds of Mach 6.
    • However, the ramjet efficiency starts to drop when the vehicle reaches hypersonic speeds.
    • A scramjet engine is an improvement over the ramjet engine as it efficiently operates at hypersonic speeds and allows supersonic combustion. Thus it is known as Supersonic Combustion Ramjet or Scramjet.

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  • Modern Indian History-Events and Personalities

    In news: Malabar Rebellion

    Prelims Only | | Mains Paper 1: Modern Indian History

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Malabar Rebellion

    Mains level: Not Much

    A report submitted to the Indian Council of Historical Research (ICHR) in 2016 has termed the Malabar Rebellion leaders as ‘rioters’.

    Try this question from CSP 2015:

    Q. Which amongst the following provided a common factor for a tribal insurrection in India in the 19th century?

    (a) Introduction of a new system of land revenue and taxation- of tribal products

    (b) Influence of foreign religious missionaries in tribal areas

    (c) Rise of a large number of money lenders, traders and revenue farmers as middlemen in tribal areas

    (d) The complete disruption of the old agrarian order of the tribal communities

    What is the Malabar Rebellion?

    • The Malabar Rebellion in 1921 started as resistance against the British colonial rule and the feudal system in southern Malabar but ended in communal violence between Hindus and Muslims.
    • There were a series of clashes between Mappila peasantry and their landlords, supported by the British, throughout the 19th and early 20th centuries.
    • It began as a reaction against a heavy-handed crackdown on the Khilafat Movement, a campaign in defence of the Ottoman Caliphate by the British authorities in the Eranad and Valluvanad taluks of Malabar.
    • The Mappilas attacked and took control of police stations, British government offices, courts and government treasuries.

    Why is it contentious?

    • It largely took the shape of guerrilla-type attacks on janmis (feudal landlords, who were mostly upper-caste Hindus) and the police and troops.
    • Mappilas had been among the victims of oppressive agrarian relations protected by the British.
    • But the political mobilization in the region in the aftermath of the Khilafat agitation and Gandhi’s non-cooperation struggle served as an opportunity for an extremist section to invoke a religious idiom to express their suffering.
    • There were excesses on both sides — rebels and government troops. Incidents of murder, looting and forced conversion led many to discredit the uprising as a manifestation of religious bigotry.
    • Moderate Khilafat leaders lamented that the rebellion had alienated the Hindu sympathy.

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  • Indian Army Updates

    Assam Rifles and the tussle between MoD and MHA

    Prelims Only | Security Issues | Mains Paper 3: Various Security Forces, Agencies & Their Mandates

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Assam Rifles

    Mains level: India's paramilitary forces

    The Delhi High Court has granted 12 weeks to the Union government to decide on whether to scrap or retain the dual control structure for Assam Rifles. Presently it comes under both the Ministry of Home Affairs (MHA) and the Ministry of Defence (MoD).

    What is the Assam Rifles?

    • Assam Rifles is one of the six central armed police forces (CAPFs) under the administrative control of Ministry of Home Affairs (MHA).
    • The other forces being the Central Reserve Police Force (CRPF), the Border Security Force (BSF), the Indo-Tibetan Border Police (ITBP), the Central Industrial Security Force (CISF) and the Sashastra Seema Bal (SSB).
    • It is tasked with the maintenance of law and order in the North East along with the Indian Army and also guards the Indo-Myanmar border in the region.
    • It has a sanctioned strength of over 63,000 personnel and has 46 battalions apart from administrative and training staff.

    Making of the regiment

    • Assam Rifles is the oldest paramilitary force raised way back in 1835 in British India with just 750 men.
    • Since then it has gone on to fight in two World Wars, the Sino-Indian War of 1962 and used as an anti-insurgency force against militant groups in the North East.
    • Raised as a militia to protect British tea estates and its settlements from the raids of the NE tribes, the force was first known as Cachar Levy.
    • It was reorganized later as Assam Frontier Force as its role was expanded to conduct punitive operations beyond Assam borders.

    How is it unique?

    • It is the only paramilitary force with a dual control structure. While the administrative control of the force is with the MHA, its operational control is with the Indian Army, which is under the MoD.
    • This means that salaries and infrastructure for the force is provided by the MHA, but the deployment, posting, transfer and deputation of the personnel is decided by the Army.
    • All its senior ranks, from DG to IG and sector headquarters, are manned by officers from the Army. The force is commanded by Lt. General from the Indian Army.
    • The force is the only central paramilitary force (CPMF) in a real sense as its operational duties and regimentation are on the lines of the Indian Army.
    • However, its recruitment, perks, promotion of its personnel and retirement policies are governed according to the rules framed by the MHA for CAPFs.

    Why do both MHA and MoD want full control?

    • MHA has argued that all the border guarding forces are under the operational control of the ministry and so Assam Rifles coming under MHA will give border guarding a comprehensive and integrated approach.
    • MHA sources also say that Assam Rifles continues to function on the pattern set during the 1960s and the ministry would want to make guarding of the Indo-Myanmar border on the lines of other CAPFs.
    • The Army, for its part, has been arguing that there is no need to fix what isn’t broken.
    • Sources say the Army is of the opinion that the Assam Rifles has worked well in coordination with the Army and frees up the armed forces from many of its responsibilities to focus on its core strengths.
    • It has argued that giving the control of the force to MHA or merging it with any other CAPF will confuse the force and jeopardize national security.

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  • Health Sector – UHC, National Health Policy, Family Planning, Health Insurance, etc.

    Vitamin-D Deficiency

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Vitamin D

    Mains level: Not Much

    The pandemic-induced lockdown has confined people to their houses for five months now. The resultant lack of sunlight, followed by rains, has brought down the vitamin D levels to the lowest.

    Try this PYQ from CSP 2014:

    Q.Consider the following pairs:

    Vitamin Deficiency:: Disease

    1. Vitamin C::Scurvy
    2. Vitamin D:: Rickets
    3. Vitamin E:: Night blindness

    Which of the pairs given above is/are correctly matched?

    (a) 1 and 2 only

    (b) 3 only

    (c) 1, 2 and 3

    (d) None

    What is Vitamin-D?

    • Vitamin D is an essential vitamin that has myriad positive effects on several systems in the body.
    • Unlike other vitamins, it functions like a hormone and every cell in your body has a receptor for it.
    • It is sparsely found in certain fatty fish and fortified dairy products, and it is extremely difficult to get the Recommended Daily Intake (RDI) of 600-800 IU from diet alone.

    There are two main forms of vitamin D in the diet:

    – Vitamin D2 (Ergocalciferol) — found in plant foods like mushrooms.
    – Vitamin D3 (Cholecalciferol) — found in animal foods like salmon, cod and egg yolks.

    Common signs and symptoms of the deficiency

    Vitamin D deficiency is incredibly common and most people are unaware of it, as the symptoms are subtle and nonspecific.

    – Getting sick or infected often with common cold and flu, because of a weak immune system.
    – Fatigue and tiredness
    – Bone and muscle pains
    – Depression
    – Impaired wound healing
    – Bone loss and osteoporosis

    Sources of Vit. D

    • Sunlight is the best natural source of vitamin D. Sunlight synthesizes cholesterol into Vitamin D3.
    • Usually, 20 to 30 minutes of sun exposure between 10 am and 3 pm is adequate to meet daily requirements, in places with minimum pollution levels.

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  • Interstate River Water Dispute

    Kalasa-Banduri Dam Project

    Prelims Only | Polity | Mains Paper 2: Federalism

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Kalasa-Banduri Dam Project

    Mains level: Inter-state water disputes

    India is on the brink of an acute water crisis, which has, to an extent, fabricated a looming threat of trans-boundary water conflicts. The conflict on the Mandovi / Mahadayi River— flowing through Goa, Karnataka and Maharashtra— is one such example.

    Try this PYQ:

    What is common to the places known as Aliyar, Isapur and Kangsabati?

    (a) Recently discovered uranium deposits

    (b) Tropical rain forests

    (c) Underground cave systems

    (d) Water reservoirs

    Kalasa-Banduri Project

    • The project undertaken by the Karnataka government proposes to divert Mandovi river water from Kalasa and Banduri canals into the Malaprabha river in the state.
    • The project received clearance from the Centre in 2002. It aims to construct a total of 11 dams on the river Mandovi.
    • The diversion of water from Kalasa and Banduri nullahs, however, has been the point of contention between Karnataka and Goa, with the latter claiming it would strip the state of its flora and fauna.

    The conflict

    • The Mandovi originates from Karnataka’s Belgaum district.
    • The Mandovi river basin falls into the states of Goa, Karnataka and Maharashtra.
    • The river is 81 kilometres (km) in length; 35 km of which flows in Karnataka, 1 km in Maharashtra and 45 km in Goa.
    • The seeds of the conflict were sowed over 40 years ago: In 1985, Karnataka initially explored a 350 megawatt-hydro-electric project to divert 50 per cent of the Mandovi river water in Karnataka for irrigation.
    • The plan was also to allow a steady flow of water from the power project’s storage dam after using the water for irrigation purposes in Karnataka.
    • This would have served to drinking water and irrigation purposes in Goa as well.

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  • Renewable Energy – Wind, Tidal, Geothermal, etc.

    Green Term Ahead Market (GTAM)

    Prelims Only | Enviro & Biodiversity | Mains Paper 3: Infrastructure: Energy, Ports, Roads, Airports, Railways Etc.

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Green Term Ahead Market (GTAM)

    Mains level: Not Much

    As a first step towards Greening the Indian short term power market, the  Ministry of Power and New & Renewable Energy (MNRE) has launched pan-India Green Term Ahead Market (GTAM) in electricity.

    About GTAM

    • GTAM is an alternative new model introduced for selling off the power by the renewable developers in the open market without getting into long term PPAs.
    • This would promote RE merchant capacity addition and help in achieving RE capacity addition targets of the country.

    Benefits of GTAM

    • It would lessen the burden on the RE-rich States and incentivize them to develop RE capacity beyond their own RPO.
    • It will benefit buyers of RE through competitive prices and transparent and flexible procurement. It will also benefit RE sellers by providing access to the pan- India market

    Key features

    • Transactions through GTAM will be bilateral in nature with clear identification of corresponding buyers and sellers, there will not be any difficulty in accounting for RPO.
    • GTAM contracts will be segregated into Solar RPO & Non-Solar RPO as RPO targets are also segregated.
    • Further, within the two segments, GTAM contracts will have Green Intraday, Day Ahead Contingency, Daily and Weekly Contracts
    • Green Intraday Contract & Day Ahead Contingency Contract – Bidding will take place on a 15-minute time-block wise MW basis.
    • Daily & Weekly Contracts – Bidding will take place on an MWh basis.
    • Price discovery will take place on a continuous basis i.e. price-time priority basis. Subsequently, looking at the market conditions open auction can be introduced for daily & weekly contracts.
    • Energy scheduled through GTAM contract shall be considered as deemed RPO compliance of the buyer.

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  • Indian Army Updates

    Special Frontier Force: The Vikas Battalion

    Prelims Only | Security Issues | Mains Paper 3: Various Security Forces, Agencies & Their Mandates

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Special Frontier Force (SFF)

    Mains level: India's security forces

    There have been reports that a Special Frontier Force (SFF) unit, referred to as Vikas Battalion, has been instrumental in occupying some key heights on the LAC.

    Try this question for mains:

    Q.“It cannot be business as usual with China after the border clash.” Critically comment.

    What is the Special Frontier Force (SFF)?

    • SFF was raised in the immediate aftermath of the 1962 Sino-India war.
    • It was a covert outfit which recruited Tibetans (now it has a mixture of Tibetans and Gorkhas) and initially went by the name of Establishment 22.
    • It was named so because it was raised by Major General Sujan Singh Uban, an Artillery officer who had commanded 22 Mountain Regiment.
    • He, therefore, named the new covert group after his regiment. Subsequently, the group was renamed as Special Frontier Force.
    • SFF now falls under the purview of the Cabinet Secretariat where it is headed by an Inspector General who is an Army officer of the rank of Major General.

    Is SFF a part of the Army?

    • Strictly speaking, the SFF units are not part of the Army but they function under the operational control of the Army.
    • The units have their own rank structures which have equivalent status with Army ranks.
    • However, they are highly trained Special Forces personnel who can undertake a variety of tasks which would normally be performed by any Special Forces unit.
    • The SFF units, therefore, function virtually as any other Army unit in operational areas despite having a separate charter and history.

    Major operations conducted

    • There are several overt and covert operations in which SFF units have taken part over the years.
    • They took part in operations in the 1971 war, Operation Blue Star in Golden Temple Amritsar, Kargil conflict and in counter-insurgency operations in the country.
    • There are several other operations too in which the SFF has participated but the details are classified.

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  • Defence Sector – DPP, Missions, Schemes, Security Forces, etc.

    Pinaka Missile System

    Prelims Only | Science Tech | Mains Paper 3: Indigenization Of Technology

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Pinaka Multibarrel Missiles

    Mains level: India-China LAC tensions

    The Ministry of Defence (MoD) has signed contracts with three Indian companies for supply of six regiments of the Pinaka Rocket System to be deployed along borders with Pakistan and China.

    Following things are crucial to know about the Pinaka Missile System:

    1) It’s development and manufacture

    2) Fire Range and other capabilities

    3) Latest technology enhancement

    Pinaka Missile System

    • Pinaka is an indigenously developed rocket system named after Lord Shiva’s mythological bow.
    • It is used for attacking the adversary targets prior to the close-quarter battles which involve smaller range artillery, armoured elements and the infantry.
    • The development of the Pinaka was started by the DRDO in the late 1980s, as an alternative to the multi-barrel rocket launching systems of Russian make, called like the ‘Grad’, which are still in use.
    • After successful tests of Pinaka Mark-1 in late 1990, it was first used in the battlefield during the Kargil War of 1999, quite successfully.
    • Subsequently, multiple regiments of the system came up over the 2000s.

    Its versions and capabilities

    • The Pinaka, which is primarily a multi-barrel rocket system (MBRL) system, can fire a salvo of 12 rockets over a period of 44 seconds.
    • One battery of the Pinaka system consists of six launch vehicles, accompanied by the loader systems, radar and links with network-based systems and a command post.
    • It can neutralize an area one kilometre by one kilometre.
    • The Mark-I version of Pinaka has a range of around 40 kilometres and the Mark-II version can fire up to 75 kilometres.
    • The Mark-II version of the rocket has been modified as a guided missile system by integrating it with the navigation, control and guidance system to improve the end accuracy and increase the range.
    • The navigation system of the missile is linked with the Indian Regional Navigation Satellite System.

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  • Indian Army Updates

    Exercise Indra 2020

    Prelims Only | Security Issues | Mains Paper 3: Various Security Forces, Agencies & Their Mandates

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Exercise Indra

    Mains level: India-Russia defence ties

    Amid high operational alert by the Indian Navy in the Indian Ocean Region (IOR) India and Russia are scheduled to hold the bilateral naval exercise, Indra 2020, in the Andaman Sea, close to the strategic Strait of Malacca.

    [Prelims Spotlight]: Various Defence Exercises in News

    https://www.civilsdaily.com/prelims-spotlight-various-defence-exercises-in-news/

    Exercise Indra

    • It is a joint, tri-services exercise between India and Russia
    • This series of exercise began in 2003 and the First joint Tri-Services Exercise was conducted in 2017.
    • Company sized mechanized contingents, fighter and transport aircraft, as well as ships of respective Army, Air Force and Navy, participate in this exercise of ten days duration.

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  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    What is Carbon-14 (C14) Battery?

    Prelims Only | Science Tech | Mains Paper 3: S&T – Applications In Everyday Life

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: C-14, Carbon Dating

    Mains level: Scientific management of nuclear waste and its disposal

    A California-based company has made a self-charging battery, which can run for 28,000 years on a single charge, by trapping carbon-14 (C14) nuclear waste in artificial diamond-case.

    Try this PYQ:

    Q.The known forces of nature can be divided into four classes, viz. gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?

    (a) Gravity is the strongest of the four

    (b) Electromagnetism act only on particles with an electric charge

    (c) Weak nuclear force causes radioactivity

    (d) Strong nuclear force holds protons and neutrons inside the nuclear of an atom.

    What is C14?

    • Carbon-14 (14C), or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.
    • There are three naturally occurring isotopes of carbon on Earth: carbon-12, which makes up 99% of all carbon on Earth; carbon-13, which makes up 1%; and carbon-14, which occurs in trace amounts.
    • Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples.

    C14 battery

    • The battery works by generating electricity on its own from a shower of electrons as a result of radioactive decay scattered and deposited in the artificial diamond-case.
    • The battery can be used in electric vehicles, mobile phones, laptops, tablets, drones, watches, cameras, health monitors and even sensors.
    • It is also said to be extremely safe and tamper-proof as it is coated with a non-radioactive diamond which prevents radiation leaks.

    Best example of nuke waste recycling

    • It is estimated that 33 million cubic metres of global nuclear waste will cost over $100 billion to manage and dispose of.
    • And a lot of this waste is graphite that is one of the higher risks of radioactive waste and one of the most expensive and problematic waste to store.

    Its applications

    • The company says its battery can be used to powerhouses, and that any excess electricity generated can be sold to the grid.
    • As the new battery need not be replaced, it can be installed in hard to reach places like pacemakers and implants, where a regular change of battery is not possible.
    • Another area of use is space electronics. The battery is said to power space equipment in rockets.
    • It can power the electrical needs of space crafts, like providing power to cockpits and assisting launch into the upper atmosphere.

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